diff options
Diffstat (limited to 'libotr/libgcrypt-1.8.7/configure.ac')
| -rw-r--r-- | libotr/libgcrypt-1.8.7/configure.ac | 2676 |
1 files changed, 2676 insertions, 0 deletions
diff --git a/libotr/libgcrypt-1.8.7/configure.ac b/libotr/libgcrypt-1.8.7/configure.ac new file mode 100644 index 0000000..10ed8ce --- /dev/null +++ b/libotr/libgcrypt-1.8.7/configure.ac @@ -0,0 +1,2676 @@ +# Configure.ac script for Libgcrypt +# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, +# 2007, 2008, 2009, 2011 Free Software Foundation, Inc. +# Copyright (C) 2012-2017 g10 Code GmbH +# +# This file is part of Libgcrypt. +# +# Libgcrypt is free software; you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as +# published by the Free Software Foundation; either version 2.1 of +# the License, or (at your option) any later version. +# +# Libgcrypt is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this program; if not, see <http://www.gnu.org/licenses/>. + +# (Process this file with autoconf to produce a configure script.) +AC_REVISION($Revision$) +AC_PREREQ(2.60) +min_automake_version="1.14" + +# To build a release you need to create a tag with the version number +# (git tag -s libgcrypt-n.m.k) and run "./autogen.sh --force". Please +# bump the version number immediately after the release and do another +# commit and push so that the git magic is able to work. See below +# for the LT versions. +m4_define(mym4_version_major, [1]) +m4_define(mym4_version_minor, [8]) +m4_define(mym4_version_micro, [7]) + +# Below is m4 magic to extract and compute the revision number, the +# decimalized short revision number, a beta version string, and a flag +# indicating a development version (mym4_isgit). Note that the m4 +# processing is done by autoconf and not during the configure run. +m4_define(mym4_version, + [mym4_version_major.mym4_version_minor.mym4_version_micro]) +m4_define([mym4_revision], + m4_esyscmd([git rev-parse --short HEAD | tr -d '\n\r'])) +m4_define([mym4_revision_dec], + m4_esyscmd_s([echo $((0x$(echo ]mym4_revision[|head -c 4)))])) +m4_define([mym4_betastring], + m4_esyscmd_s([git describe --match 'libgcrypt-[0-9].*[0-9]' --long|\ + awk -F- '$3!=0{print"-beta"$3}'])) +m4_define([mym4_isgit],m4_if(mym4_betastring,[],[no],[yes])) +m4_define([mym4_full_version],[mym4_version[]mym4_betastring]) + +AC_INIT([libgcrypt],[mym4_full_version],[http://bugs.gnupg.org]) + +# LT Version numbers: In this branch we only change the revision. +# (Interfaces removed: CURRENT++, AGE=0, REVISION=0) +# (Interfaces added: CURRENT++, AGE++, REVISION=0) +# (No interfaces changed: REVISION++) +LIBGCRYPT_LT_CURRENT=22 +LIBGCRYPT_LT_AGE=2 +LIBGCRYPT_LT_REVISION=8 + + +# If the API is changed in an incompatible way: increment the next counter. +# +# 1.6: ABI and API change but the change is to most users irrelevant +# and thus the API version number has not been incremented. +LIBGCRYPT_CONFIG_API_VERSION=1 + +# If you change the required gpg-error version, please remove +# unnecessary error code defines in src/gcrypt-int.h. +NEED_GPG_ERROR_VERSION=1.25 + +PACKAGE=$PACKAGE_NAME +VERSION=$PACKAGE_VERSION + +AC_CONFIG_AUX_DIR([build-aux]) +AC_CONFIG_SRCDIR([src/libgcrypt.vers]) +AM_INIT_AUTOMAKE([serial-tests dist-bzip2]) +AC_CONFIG_HEADER(config.h) +AC_CONFIG_MACRO_DIR([m4]) +AC_CONFIG_LIBOBJ_DIR([compat]) +AC_CANONICAL_HOST +AM_MAINTAINER_MODE +AM_SILENT_RULES + +AC_ARG_VAR(SYSROOT,[locate config scripts also below that directory]) + +AH_TOP([ +#ifndef _GCRYPT_CONFIG_H_INCLUDED +#define _GCRYPT_CONFIG_H_INCLUDED + +/* Enable gpg-error's strerror macro for W32CE. */ +#define GPG_ERR_ENABLE_ERRNO_MACROS 1 +]) + +AH_BOTTOM([ +#define _GCRYPT_IN_LIBGCRYPT 1 + +/* If the configure check for endianness has been disabled, get it from + OS macros. This is intended for making fat binary builds on OS X. */ +#ifdef DISABLED_ENDIAN_CHECK +# if defined(__BIG_ENDIAN__) +# define WORDS_BIGENDIAN 1 +# elif defined(__LITTLE_ENDIAN__) +# undef WORDS_BIGENDIAN +# else +# error "No endianness found" +# endif +#endif /*DISABLED_ENDIAN_CHECK*/ + +/* We basically use the original Camellia source. Make sure the symbols + properly prefixed. */ +#define CAMELLIA_EXT_SYM_PREFIX _gcry_ + +#endif /*_GCRYPT_CONFIG_H_INCLUDED*/ +]) + +AH_VERBATIM([_REENTRANT], +[/* To allow the use of Libgcrypt in multithreaded programs we have to use + special features from the library. */ +#ifndef _REENTRANT +# define _REENTRANT 1 +#endif +]) + + +AC_SUBST(LIBGCRYPT_LT_CURRENT) +AC_SUBST(LIBGCRYPT_LT_AGE) +AC_SUBST(LIBGCRYPT_LT_REVISION) +AC_SUBST(PACKAGE) +AC_SUBST(VERSION) +AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package]) +AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version of this package]) +VERSION_NUMBER=m4_esyscmd(printf "0x%02x%02x%02x" mym4_version_major \ + mym4_version_minor mym4_version_micro) +AC_SUBST(VERSION_NUMBER) + + +###################### +## Basic checks. ### (we need some results later on (e.g. $GCC) +###################### + +AC_PROG_MAKE_SET +missing_dir=`cd $ac_aux_dir && pwd` +AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir) +AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir) +AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir) +AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir) +# AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir) +AC_PROG_CC +AC_PROG_CPP +AM_PROG_CC_C_O +AM_PROG_AS +AC_ISC_POSIX +AC_PROG_INSTALL +AC_PROG_AWK + +AC_GNU_SOURCE + +# We need to compile and run a program on the build machine. A +# comment in libgpg-error says that the AC_PROG_CC_FOR_BUILD macro in +# the AC archive is broken for autoconf 2.57. Given that there is no +# newer version of that macro, we assume that it is also broken for +# autoconf 2.61 and thus we use a simple but usually sufficient +# approach. +AC_MSG_CHECKING(for cc for build) +if test "$cross_compiling" = "yes"; then + CC_FOR_BUILD="${CC_FOR_BUILD-cc}" +else + CC_FOR_BUILD="${CC_FOR_BUILD-$CC}" +fi +AC_MSG_RESULT($CC_FOR_BUILD) +AC_ARG_VAR(CC_FOR_BUILD,[build system C compiler]) + + +LT_PREREQ([2.2.6]) +LT_INIT([win32-dll disable-static]) +LT_LANG([Windows Resource]) + + +########################## +## General definitions. ## +########################## + +# Used by libgcrypt-config +LIBGCRYPT_CONFIG_LIBS="-lgcrypt" +LIBGCRYPT_CONFIG_CFLAGS="" +LIBGCRYPT_CONFIG_HOST="$host" + +# Definitions for symmetric ciphers. +available_ciphers="arcfour blowfish cast5 des aes twofish serpent rfc2268 seed" +available_ciphers="$available_ciphers camellia idea salsa20 gost28147 chacha20" +enabled_ciphers="" + +# Definitions for public-key ciphers. +available_pubkey_ciphers="dsa elgamal rsa ecc" +enabled_pubkey_ciphers="" + +# Definitions for message digests. +available_digests="crc gostr3411-94 md2 md4 md5 rmd160 sha1 sha256 sha512" +available_digests="$available_digests sha3 tiger whirlpool stribog blake2" +enabled_digests="" + +# Definitions for kdfs (optional ones) +available_kdfs="s2k pkdf2 scrypt" +enabled_kdfs="" + +# Definitions for random modules. +available_random_modules="linux egd unix" +auto_random_modules="$available_random_modules" + +# Supported thread backends. +LIBGCRYPT_THREAD_MODULES="" + +# Other definitions. +have_w32_system=no +have_w32ce_system=no +have_pthread=no + + +# Setup some stuff depending on host. +case "${host}" in + *-*-mingw32*) + ac_cv_have_dev_random=no + have_w32_system=yes + case "${host}" in + *-mingw32ce*) + have_w32ce_system=yes + available_random_modules="w32ce" + ;; + *) + available_random_modules="w32" + ;; + esac + AC_DEFINE(USE_ONLY_8DOT3,1, + [set this to limit filenames to the 8.3 format]) + AC_DEFINE(HAVE_DRIVE_LETTERS,1, + [defined if we must run on a stupid file system]) + AC_DEFINE(HAVE_DOSISH_SYSTEM,1, + [defined if we run on some of the PCDOS like systems + (DOS, Windoze. OS/2) with special properties like + no file modes]) + ;; + + i?86-emx-os2 | i?86-*-os2*emx) + # OS/2 with the EMX environment + ac_cv_have_dev_random=no + AC_DEFINE(HAVE_DRIVE_LETTERS) + AC_DEFINE(HAVE_DOSISH_SYSTEM) + ;; + + i?86-*-msdosdjgpp*) + # DOS with the DJGPP environment + ac_cv_have_dev_random=no + AC_DEFINE(HAVE_DRIVE_LETTERS) + AC_DEFINE(HAVE_DOSISH_SYSTEM) + ;; + + *-*-hpux*) + if test -z "$GCC" ; then + CFLAGS="$CFLAGS -Ae -D_HPUX_SOURCE" + fi + ;; + *-dec-osf4*) + if test -z "$GCC" ; then + # Suppress all warnings + # to get rid of the unsigned/signed char mismatch warnings. + CFLAGS="$CFLAGS -w" + fi + ;; + m68k-atari-mint) + ;; + *-apple-darwin*) + AC_DEFINE(_DARWIN_C_SOURCE, 900000L, + Expose all libc features (__DARWIN_C_FULL).) + ;; + *) + ;; +esac + +if test "$have_w32_system" = yes; then + AC_DEFINE(HAVE_W32_SYSTEM,1, [Defined if we run on a W32 API based system]) + if test "$have_w32ce_system" = yes; then + AC_DEFINE(HAVE_W32CE_SYSTEM,1,[Defined if we run on WindowsCE]) + fi +fi +AM_CONDITIONAL(HAVE_W32_SYSTEM, test "$have_w32_system" = yes) +AM_CONDITIONAL(HAVE_W32CE_SYSTEM, test "$have_w32ce_system" = yes) + + + +# A printable OS Name is sometimes useful. +case "${host}" in + *-*-mingw32ce*) + PRINTABLE_OS_NAME="W32CE" + ;; + + *-*-mingw32*) + PRINTABLE_OS_NAME="W32" + ;; + + i?86-emx-os2 | i?86-*-os2*emx ) + PRINTABLE_OS_NAME="OS/2" + ;; + + i?86-*-msdosdjgpp*) + PRINTABLE_OS_NAME="MSDOS/DJGPP" + ;; + + *-linux*) + PRINTABLE_OS_NAME="GNU/Linux" + ;; + + *) + PRINTABLE_OS_NAME=`uname -s || echo "Unknown"` + ;; +esac + +NAME_OF_DEV_RANDOM="/dev/random" +NAME_OF_DEV_URANDOM="/dev/urandom" + +AC_ARG_ENABLE(endian-check, + AC_HELP_STRING([--disable-endian-check], + [disable the endian check and trust the OS provided macros]), + endiancheck=$enableval,endiancheck=yes) +if test x"$endiancheck" = xyes ; then + AC_C_BIGENDIAN +else + AC_DEFINE(DISABLED_ENDIAN_CHECK,1,[configure did not test for endianness]) +fi + +AC_CHECK_SIZEOF(unsigned short, 2) +AC_CHECK_SIZEOF(unsigned int, 4) +AC_CHECK_SIZEOF(unsigned long, 4) +AC_CHECK_SIZEOF(unsigned long long, 0) +AC_CHECK_SIZEOF(void *, 0) + +AC_TYPE_UINTPTR_T + +if test "$ac_cv_sizeof_unsigned_short" = "0" \ + || test "$ac_cv_sizeof_unsigned_int" = "0" \ + || test "$ac_cv_sizeof_unsigned_long" = "0"; then + AC_MSG_WARN([Hmmm, something is wrong with the sizes - using defaults]); +fi + +# Ensure that we have UINT64_C before we bother to check for uint64_t +AC_CACHE_CHECK([for UINT64_C],[gnupg_cv_uint64_c_works], + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <inttypes.h>]], + [[uint64_t foo=UINT64_C(42);]])], + gnupg_cv_uint64_c_works=yes,gnupg_cv_uint64_c_works=no)) +if test "$gnupg_cv_uint64_c_works" = "yes" ; then + AC_CHECK_SIZEOF(uint64_t) +fi + +# Do we have any 64-bit data types? +if test "$ac_cv_sizeof_unsigned_int" != "8" \ + && test "$ac_cv_sizeof_unsigned_long" != "8" \ + && test "$ac_cv_sizeof_unsigned_long_long" != "8" \ + && test "$ac_cv_sizeof_uint64_t" != "8"; then + AC_MSG_ERROR([[ +*** +*** No 64-bit integer type available. +*** It is not possible to build Libgcrypt on this platform. +***]]) +fi + + +# If not specified otherwise, all available algorithms will be +# included. +default_ciphers="$available_ciphers" +default_pubkey_ciphers="$available_pubkey_ciphers" +default_digests="$available_digests" +default_kdfs="$available_kdfs" +# Blacklist MD2 by default +default_digests=`echo $default_digests | sed -e 's/md2//g'` + +# Substitutions to set generated files in a Emacs buffer to read-only. +AC_SUBST(emacs_local_vars_begin, ['Local Variables:']) +AC_SUBST(emacs_local_vars_read_only, ['buffer-read-only: t']) +AC_SUBST(emacs_local_vars_end, ['End:']) + +############################ +## Command line switches. ## +############################ + +# Implementation of the --enable-ciphers switch. +AC_ARG_ENABLE(ciphers, + AC_HELP_STRING([--enable-ciphers=ciphers], + [select the symmetric ciphers to include]), + [enabled_ciphers=`echo $enableval | tr ',:' ' ' | tr '[A-Z]' '[a-z]'`], + [enabled_ciphers=""]) +if test "x$enabled_ciphers" = "x" \ + -o "$enabled_ciphers" = "yes" \ + -o "$enabled_ciphers" = "no"; then + enabled_ciphers=$default_ciphers +fi +AC_MSG_CHECKING([which symmetric ciphers to include]) +for cipher in $enabled_ciphers; do + LIST_MEMBER($cipher, $available_ciphers) + if test "$found" = "0"; then + AC_MSG_ERROR([unsupported cipher "$cipher" specified]) + fi +done +AC_MSG_RESULT([$enabled_ciphers]) + +# Implementation of the --enable-pubkey-ciphers switch. +AC_ARG_ENABLE(pubkey-ciphers, + AC_HELP_STRING([--enable-pubkey-ciphers=ciphers], + [select the public-key ciphers to include]), + [enabled_pubkey_ciphers=`echo $enableval | tr ',:' ' ' | tr '[A-Z]' '[a-z]'`], + [enabled_pubkey_ciphers=""]) +if test "x$enabled_pubkey_ciphers" = "x" \ + -o "$enabled_pubkey_ciphers" = "yes" \ + -o "$enabled_pubkey_ciphers" = "no"; then + enabled_pubkey_ciphers=$default_pubkey_ciphers +fi +AC_MSG_CHECKING([which public-key ciphers to include]) +for cipher in $enabled_pubkey_ciphers; do + LIST_MEMBER($cipher, $available_pubkey_ciphers) + if test "$found" = "0"; then + AC_MSG_ERROR([unsupported public-key cipher specified]) + fi +done +AC_MSG_RESULT([$enabled_pubkey_ciphers]) + +# Implementation of the --enable-digests switch. +AC_ARG_ENABLE(digests, + AC_HELP_STRING([--enable-digests=digests], + [select the message digests to include]), + [enabled_digests=`echo $enableval | tr ',:' ' ' | tr '[A-Z]' '[a-z]'`], + [enabled_digests=""]) +if test "x$enabled_digests" = "x" \ + -o "$enabled_digests" = "yes" \ + -o "$enabled_digests" = "no"; then + enabled_digests=$default_digests +fi +AC_MSG_CHECKING([which message digests to include]) +for digest in $enabled_digests; do + LIST_MEMBER($digest, $available_digests) + if test "$found" = "0"; then + AC_MSG_ERROR([unsupported message digest specified]) + fi +done +AC_MSG_RESULT([$enabled_digests]) + +# Implementation of the --enable-kdfs switch. +AC_ARG_ENABLE(kdfs, + AC_HELP_STRING([--enable-kfds=kdfs], + [select the KDFs to include]), + [enabled_kdfs=`echo $enableval | tr ',:' ' ' | tr '[A-Z]' '[a-z]'`], + [enabled_kdfs=""]) +if test "x$enabled_kdfs" = "x" \ + -o "$enabled_kdfs" = "yes" \ + -o "$enabled_kdfs" = "no"; then + enabled_kdfs=$default_kdfs +fi +AC_MSG_CHECKING([which key derivation functions to include]) +for kdf in $enabled_kdfs; do + LIST_MEMBER($kdf, $available_kdfs) + if test "$found" = "0"; then + AC_MSG_ERROR([unsupported key derivation function specified]) + fi +done +AC_MSG_RESULT([$enabled_kdfs]) + +# Implementation of the --enable-random switch. +AC_ARG_ENABLE(random, + AC_HELP_STRING([--enable-random=name], + [select which random number generator to use]), + [random=`echo $enableval | tr '[A-Z]' '[a-z]'`], + []) +if test "x$random" = "x" -o "$random" = "yes" -o "$random" = "no"; then + random=default +fi +AC_MSG_CHECKING([which random module to use]) +if test "$random" != "default" -a "$random" != "auto"; then + LIST_MEMBER($random, $available_random_modules) + if test "$found" = "0"; then + AC_MSG_ERROR([unsupported random module specified]) + fi +fi +AC_MSG_RESULT($random) + +# Implementation of the --disable-dev-random switch. +AC_MSG_CHECKING([whether use of /dev/random is requested]) +AC_ARG_ENABLE(dev-random, +[ --disable-dev-random disable the use of dev random], + try_dev_random=$enableval, try_dev_random=yes) +AC_MSG_RESULT($try_dev_random) + +# Implementation of the --with-egd-socket switch. +AC_ARG_WITH(egd-socket, + [ --with-egd-socket=NAME Use NAME for the EGD socket)], + egd_socket_name="$withval", egd_socket_name="" ) +AC_DEFINE_UNQUOTED(EGD_SOCKET_NAME, "$egd_socket_name", + [Define if you don't want the default EGD socket name. + For details see cipher/rndegd.c]) + +# Implementation of the --enable-random-daemon +AC_MSG_CHECKING([whether the experimental random daemon is requested]) +AC_ARG_ENABLE([random-daemon], + AC_HELP_STRING([--enable-random-daemon], + [Build and support the experimental gcryptrnd]), + [use_random_daemon=$enableval], + [use_random_daemon=no]) +AC_MSG_RESULT($use_random_daemon) +if test x$use_random_daemon = xyes ; then + AC_DEFINE(USE_RANDOM_DAEMON,1, + [Define to support the experimental random daemon]) +fi +AM_CONDITIONAL(USE_RANDOM_DAEMON, test x$use_random_daemon = xyes) + + +# Implementation of --disable-asm. +AC_MSG_CHECKING([whether MPI assembler modules are requested]) +AC_ARG_ENABLE([asm], + AC_HELP_STRING([--disable-asm], + [Disable MPI assembler modules]), + [try_asm_modules=$enableval], + [try_asm_modules=yes]) +AC_MSG_RESULT($try_asm_modules) + +# Implementation of the --enable-m-guard switch. +AC_MSG_CHECKING([whether memory guard is requested]) +AC_ARG_ENABLE(m-guard, + AC_HELP_STRING([--enable-m-guard], + [Enable memory guard facility]), + [use_m_guard=$enableval], [use_m_guard=no]) +AC_MSG_RESULT($use_m_guard) +if test "$use_m_guard" = yes ; then + AC_DEFINE(M_GUARD,1,[Define to use the (obsolete) malloc guarding feature]) +fi + +# Implementation of the --enable-large-data-tests switch. +AC_MSG_CHECKING([whether to run large data tests]) +AC_ARG_ENABLE(large-data-tests, + AC_HELP_STRING([--enable-large-data-tests], + [Enable the real long ruinning large data tests]), + large_data_tests=$enableval,large_data_tests=no) +AC_MSG_RESULT($large_data_tests) +AC_SUBST(RUN_LARGE_DATA_TESTS, $large_data_tests) + + +# Implementation of the --with-capabilities switch. +# Check whether we want to use Linux capabilities +AC_MSG_CHECKING([whether use of capabilities is requested]) +AC_ARG_WITH(capabilities, + AC_HELP_STRING([--with-capabilities], + [Use linux capabilities [default=no]]), + [use_capabilities="$withval"],[use_capabilities=no]) +AC_MSG_RESULT($use_capabilities) + +# Implementation of the --enable-hmac-binary-check. +AC_MSG_CHECKING([whether a HMAC binary check is requested]) +AC_ARG_ENABLE(hmac-binary-check, + AC_HELP_STRING([--enable-hmac-binary-check], + [Enable library integrity check]), + [use_hmac_binary_check=$enableval], + [use_hmac_binary_check=no]) +AC_MSG_RESULT($use_hmac_binary_check) +if test "$use_hmac_binary_check" = yes ; then + AC_DEFINE(ENABLE_HMAC_BINARY_CHECK,1, + [Define to support an HMAC based integrity check]) +fi + + +# Implementation of the --disable-jent-support switch. +AC_MSG_CHECKING([whether jitter entropy support is requested]) +AC_ARG_ENABLE(jent-support, + AC_HELP_STRING([--disable-jent-support], + [Disable support for the Jitter entropy collector]), + jentsupport=$enableval,jentsupport=yes) +AC_MSG_RESULT($jentsupport) + +# Implementation of the --disable-padlock-support switch. +AC_MSG_CHECKING([whether padlock support is requested]) +AC_ARG_ENABLE(padlock-support, + AC_HELP_STRING([--disable-padlock-support], + [Disable support for the PadLock Engine of VIA processors]), + padlocksupport=$enableval,padlocksupport=yes) +AC_MSG_RESULT($padlocksupport) + +# Implementation of the --disable-aesni-support switch. +AC_MSG_CHECKING([whether AESNI support is requested]) +AC_ARG_ENABLE(aesni-support, + AC_HELP_STRING([--disable-aesni-support], + [Disable support for the Intel AES-NI instructions]), + aesnisupport=$enableval,aesnisupport=yes) +AC_MSG_RESULT($aesnisupport) + +# Implementation of the --disable-pclmul-support switch. +AC_MSG_CHECKING([whether PCLMUL support is requested]) +AC_ARG_ENABLE(pclmul-support, + AC_HELP_STRING([--disable-pclmul-support], + [Disable support for the Intel PCLMUL instructions]), + pclmulsupport=$enableval,pclmulsupport=yes) +AC_MSG_RESULT($pclmulsupport) + +# Implementation of the --disable-sse41-support switch. +AC_MSG_CHECKING([whether SSE4.1 support is requested]) +AC_ARG_ENABLE(sse41-support, + AC_HELP_STRING([--disable-sse41-support], + [Disable support for the Intel SSE4.1 instructions]), + sse41support=$enableval,sse41support=yes) +AC_MSG_RESULT($sse41support) + +# Implementation of the --disable-drng-support switch. +AC_MSG_CHECKING([whether DRNG support is requested]) +AC_ARG_ENABLE(drng-support, + AC_HELP_STRING([--disable-drng-support], + [Disable support for the Intel DRNG (RDRAND instruction)]), + drngsupport=$enableval,drngsupport=yes) +AC_MSG_RESULT($drngsupport) + +# Implementation of the --disable-avx-support switch. +AC_MSG_CHECKING([whether AVX support is requested]) +AC_ARG_ENABLE(avx-support, + AC_HELP_STRING([--disable-avx-support], + [Disable support for the Intel AVX instructions]), + avxsupport=$enableval,avxsupport=yes) +AC_MSG_RESULT($avxsupport) + +# Implementation of the --disable-avx2-support switch. +AC_MSG_CHECKING([whether AVX2 support is requested]) +AC_ARG_ENABLE(avx2-support, + AC_HELP_STRING([--disable-avx2-support], + [Disable support for the Intel AVX2 instructions]), + avx2support=$enableval,avx2support=yes) +AC_MSG_RESULT($avx2support) + +# Implementation of the --disable-neon-support switch. +AC_MSG_CHECKING([whether NEON support is requested]) +AC_ARG_ENABLE(neon-support, + AC_HELP_STRING([--disable-neon-support], + [Disable support for the ARM NEON instructions]), + neonsupport=$enableval,neonsupport=yes) +AC_MSG_RESULT($neonsupport) + +# Implementation of the --disable-arm-crypto-support switch. +AC_MSG_CHECKING([whether ARMv8 Crypto Extension support is requested]) +AC_ARG_ENABLE(arm-crypto-support, + AC_HELP_STRING([--disable-arm-crypto-support], + [Disable support for the ARMv8 Crypto Extension instructions]), + armcryptosupport=$enableval,armcryptosupport=yes) +AC_MSG_RESULT($armcryptosupport) + +# Implementation of the --disable-O-flag-munging switch. +AC_MSG_CHECKING([whether a -O flag munging is requested]) +AC_ARG_ENABLE([O-flag-munging], + AC_HELP_STRING([--disable-O-flag-munging], + [Disable modification of the cc -O flag]), + [enable_o_flag_munging=$enableval], + [enable_o_flag_munging=yes]) +AC_MSG_RESULT($enable_o_flag_munging) +AM_CONDITIONAL(ENABLE_O_FLAG_MUNGING, test "$enable_o_flag_munging" = "yes") + +# Implementation of the --disable-amd64-as-feature-detection switch. +AC_MSG_CHECKING([whether to enable AMD64 as(1) feature detection]) +AC_ARG_ENABLE(amd64-as-feature-detection, + AC_HELP_STRING([--disable-amd64-as-feature-detection], + [Disable the auto-detection of AMD64 as(1) features]), + amd64_as_feature_detection=$enableval, + amd64_as_feature_detection=yes) +AC_MSG_RESULT($amd64_as_feature_detection) + + +AC_DEFINE_UNQUOTED(PRINTABLE_OS_NAME, "$PRINTABLE_OS_NAME", + [A human readable text with the name of the OS]) + +# For some systems we know that we have ld_version scripts. +# Use it then as default. +have_ld_version_script=no +case "${host}" in + *-*-linux*) + have_ld_version_script=yes + ;; + *-*-gnu*) + have_ld_version_script=yes + ;; +esac +AC_ARG_ENABLE([ld-version-script], + AC_HELP_STRING([--enable-ld-version-script], + [enable/disable use of linker version script. + (default is system dependent)]), + [have_ld_version_script=$enableval], + [ : ] ) +AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes") + +AC_DEFINE_UNQUOTED(NAME_OF_DEV_RANDOM, "$NAME_OF_DEV_RANDOM", + [defined to the name of the strong random device]) +AC_DEFINE_UNQUOTED(NAME_OF_DEV_URANDOM, "$NAME_OF_DEV_URANDOM", + [defined to the name of the weaker random device]) + + +############################### +#### Checks for libraries. #### +############################### + +# +# gpg-error is required. +# +AM_PATH_GPG_ERROR("$NEED_GPG_ERROR_VERSION") +if test "x$GPG_ERROR_LIBS" = "x"; then + AC_MSG_ERROR([libgpg-error is needed. + See ftp://ftp.gnupg.org/gcrypt/libgpg-error/ .]) +fi + +AC_DEFINE(GPG_ERR_SOURCE_DEFAULT, GPG_ERR_SOURCE_GCRYPT, + [The default error source for libgcrypt.]) + +# +# Check whether the GNU Pth library is available. We require this +# to build the optional gcryptrnd program. +# +AC_ARG_WITH(pth-prefix, + AC_HELP_STRING([--with-pth-prefix=PFX], + [prefix where GNU Pth is installed (optional)]), + pth_config_prefix="$withval", pth_config_prefix="") +if test x$pth_config_prefix != x ; then + PTH_CONFIG="$pth_config_prefix/bin/pth-config" +fi +if test "$use_random_daemon" = "yes"; then + AC_PATH_PROG(PTH_CONFIG, pth-config, no) + if test "$PTH_CONFIG" = "no"; then + AC_MSG_WARN([[ +*** +*** To build the Libgcrypt's random number daemon +*** we need the support of the GNU Portable Threads Library. +*** Download it from ftp://ftp.gnu.org/gnu/pth/ +*** On a Debian GNU/Linux system you might want to try +*** apt-get install libpth-dev +***]]) + else + GNUPG_PTH_VERSION_CHECK([1.3.7]) + if test $have_pth = yes; then + PTH_CFLAGS=`$PTH_CONFIG --cflags` + PTH_LIBS=`$PTH_CONFIG --ldflags` + PTH_LIBS="$PTH_LIBS `$PTH_CONFIG --libs --all`" + AC_DEFINE(USE_GNU_PTH, 1, + [Defined if the GNU Portable Thread Library should be used]) + AC_DEFINE(HAVE_PTH, 1, + [Defined if the GNU Pth is available]) + fi + fi +fi +AC_SUBST(PTH_CFLAGS) +AC_SUBST(PTH_LIBS) + +# +# Check whether pthreads is available +# +if test "$have_w32_system" != yes; then + AC_CHECK_LIB(pthread,pthread_create,have_pthread=yes) + if test "$have_pthread" = yes; then + AC_DEFINE(HAVE_PTHREAD, 1 ,[Define if we have pthread.]) + fi +fi + + +# Solaris needs -lsocket and -lnsl. Unisys system includes +# gethostbyname in libsocket but needs libnsl for socket. +AC_SEARCH_LIBS(setsockopt, [socket], , + [AC_SEARCH_LIBS(setsockopt, [socket], , , [-lnsl])]) +AC_SEARCH_LIBS(setsockopt, [nsl]) + +################################## +#### Checks for header files. #### +################################## + +AC_HEADER_STDC +AC_CHECK_HEADERS(unistd.h sys/select.h sys/msg.h) +INSERT_SYS_SELECT_H= +if test x"$ac_cv_header_sys_select_h" = xyes; then + INSERT_SYS_SELECT_H=" include <sys/select.h>" +fi +AC_SUBST(INSERT_SYS_SELECT_H) + + +########################################## +#### Checks for typedefs, structures, #### +#### and compiler characteristics. #### +########################################## + +AC_C_CONST +AC_C_INLINE +AC_TYPE_SIZE_T +AC_TYPE_SIGNAL +AC_DECL_SYS_SIGLIST +AC_TYPE_PID_T + +GNUPG_CHECK_TYPEDEF(byte, HAVE_BYTE_TYPEDEF) +GNUPG_CHECK_TYPEDEF(ushort, HAVE_USHORT_TYPEDEF) +GNUPG_CHECK_TYPEDEF(ulong, HAVE_ULONG_TYPEDEF) +GNUPG_CHECK_TYPEDEF(u16, HAVE_U16_TYPEDEF) +GNUPG_CHECK_TYPEDEF(u32, HAVE_U32_TYPEDEF) + +gl_TYPE_SOCKLEN_T +case "${host}" in + *-*-mingw32*) + # socklen_t may or may not be defined depending on what headers + # are included. To be safe we use int as this is the actual type. + FALLBACK_SOCKLEN_T="typedef int gcry_socklen_t;" + ;; + *) + if test ".$gl_cv_socklen_t_equiv" = "."; then + FALLBACK_SOCKLEN_T="typedef socklen_t gcry_socklen_t;" + else + FALLBACK_SOCKLEN_T="typedef ${gl_cv_socklen_t_equiv} gcry_socklen_t;" + fi +esac +AC_SUBST(FALLBACK_SOCKLEN_T) + + +# +# Check for __builtin_bswap32 intrinsic. +# +AC_CACHE_CHECK(for __builtin_bswap32, + [gcry_cv_have_builtin_bswap32], + [gcry_cv_have_builtin_bswap32=no + AC_LINK_IFELSE([AC_LANG_PROGRAM([], + [int x = 0; int y = __builtin_bswap32(x); return y;])], + [gcry_cv_have_builtin_bswap32=yes])]) +if test "$gcry_cv_have_builtin_bswap32" = "yes" ; then + AC_DEFINE(HAVE_BUILTIN_BSWAP32,1, + [Defined if compiler has '__builtin_bswap32' intrinsic]) +fi + + +# +# Check for __builtin_bswap64 intrinsic. +# +AC_CACHE_CHECK(for __builtin_bswap64, + [gcry_cv_have_builtin_bswap64], + [gcry_cv_have_builtin_bswap64=no + AC_LINK_IFELSE([AC_LANG_PROGRAM([], + [long long x = 0; long long y = __builtin_bswap64(x); return y;])], + [gcry_cv_have_builtin_bswap64=yes])]) +if test "$gcry_cv_have_builtin_bswap64" = "yes" ; then + AC_DEFINE(HAVE_BUILTIN_BSWAP64,1, + [Defined if compiler has '__builtin_bswap64' intrinsic]) +fi + + +# +# Check for __builtin_ctz intrinsic. +# +AC_CACHE_CHECK(for __builtin_ctz, + [gcry_cv_have_builtin_ctz], + [gcry_cv_have_builtin_ctz=no + AC_LINK_IFELSE([AC_LANG_PROGRAM([], + [unsigned int x = 0; int y = __builtin_ctz(x); return y;])], + [gcry_cv_have_builtin_ctz=yes])]) +if test "$gcry_cv_have_builtin_ctz" = "yes" ; then + AC_DEFINE(HAVE_BUILTIN_CTZ, 1, + [Defined if compiler has '__builtin_ctz' intrinsic]) +fi + + +# +# Check for VLA support (variable length arrays). +# +AC_CACHE_CHECK(whether the variable length arrays are supported, + [gcry_cv_have_vla], + [gcry_cv_have_vla=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void f1(char *, int); + char foo(int i) { + char b[(i < 0 ? 0 : i) + 1]; + f1(b, sizeof b); return b[0];}]])], + [gcry_cv_have_vla=yes])]) +if test "$gcry_cv_have_vla" = "yes" ; then + AC_DEFINE(HAVE_VLA,1, [Defined if variable length arrays are supported]) +fi + + +# +# Check for ELF visibility support. +# +AC_CACHE_CHECK(whether the visibility attribute is supported, + gcry_cv_visibility_attribute, + [gcry_cv_visibility_attribute=no + AC_LANG_CONFTEST([AC_LANG_SOURCE( + [[int foo __attribute__ ((visibility ("hidden"))) = 1; + int bar __attribute__ ((visibility ("protected"))) = 1; + ]])]) + + if ${CC-cc} -Werror -S conftest.c -o conftest.s \ + 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then + if grep '\.hidden.*foo' conftest.s >/dev/null 2>&1 ; then + if grep '\.protected.*bar' conftest.s >/dev/null 2>&1; then + gcry_cv_visibility_attribute=yes + fi + fi + fi + ]) +if test "$gcry_cv_visibility_attribute" = "yes"; then + AC_CACHE_CHECK(for broken visibility attribute, + gcry_cv_broken_visibility_attribute, + [gcry_cv_broken_visibility_attribute=yes + AC_LANG_CONFTEST([AC_LANG_SOURCE( + [[int foo (int x); + int bar (int x) __asm__ ("foo") + __attribute__ ((visibility ("hidden"))); + int bar (int x) { return x; } + ]])]) + + if ${CC-cc} -Werror -S conftest.c -o conftest.s \ + 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then + if grep '\.hidden@<:@ _@:>@foo' conftest.s >/dev/null 2>&1; + then + gcry_cv_broken_visibility_attribute=no + fi + fi + ]) +fi +if test "$gcry_cv_visibility_attribute" = "yes"; then + AC_CACHE_CHECK(for broken alias attribute, + gcry_cv_broken_alias_attribute, + [gcry_cv_broken_alias_attribute=yes + AC_LANG_CONFTEST([AC_LANG_SOURCE( + [[extern int foo (int x) __asm ("xyzzy"); + int bar (int x) { return x; } + extern __typeof (bar) foo __attribute ((weak, alias ("bar"))); + extern int dfoo; + extern __typeof (dfoo) dfoo __asm ("abccb"); + int dfoo = 1; + ]])]) + + if ${CC-cc} -Werror -S conftest.c -o conftest.s \ + 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD ; then + if grep 'xyzzy' conftest.s >/dev/null 2>&1 && \ + grep 'abccb' conftest.s >/dev/null 2>&1; then + gcry_cv_broken_alias_attribute=no + fi + fi + ]) +fi +if test "$gcry_cv_visibility_attribute" = "yes"; then + AC_CACHE_CHECK(if gcc supports -fvisibility=hidden, + gcry_cv_gcc_has_f_visibility, + [gcry_cv_gcc_has_f_visibility=no + _gcc_cflags_save=$CFLAGS + CFLAGS="-fvisibility=hidden" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], + gcry_cv_gcc_has_f_visibility=yes) + CFLAGS=$_gcc_cflags_save; + ]) +fi +if test "$gcry_cv_visibility_attribute" = "yes" \ + && test "$gcry_cv_broken_visibility_attribute" != "yes" \ + && test "$gcry_cv_broken_alias_attribute" != "yes" \ + && test "$gcry_cv_gcc_has_f_visibility" = "yes" + then + AC_DEFINE(GCRY_USE_VISIBILITY, 1, + [Define to use the GNU C visibility attribute.]) + CFLAGS="$CFLAGS -fvisibility=hidden" +fi + + +# Following attribute tests depend on warnings to cause compile to fail, +# so set -Werror temporarily. +_gcc_cflags_save=$CFLAGS +CFLAGS="$CFLAGS -Werror" + + +# +# Check whether the compiler supports the GCC style aligned attribute +# +AC_CACHE_CHECK([whether the GCC style aligned attribute is supported], + [gcry_cv_gcc_attribute_aligned], + [gcry_cv_gcc_attribute_aligned=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[struct { int a; } foo __attribute__ ((aligned (16)));]])], + [gcry_cv_gcc_attribute_aligned=yes])]) +if test "$gcry_cv_gcc_attribute_aligned" = "yes" ; then + AC_DEFINE(HAVE_GCC_ATTRIBUTE_ALIGNED,1, + [Defined if a GCC style "__attribute__ ((aligned (n))" is supported]) +fi + + +# +# Check whether the compiler supports the GCC style packed attribute +# +AC_CACHE_CHECK([whether the GCC style packed attribute is supported], + [gcry_cv_gcc_attribute_packed], + [gcry_cv_gcc_attribute_packed=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[struct foolong_s { long b; } __attribute__ ((packed)); + struct foo_s { char a; struct foolong_s b; } + __attribute__ ((packed)); + enum bar { + FOO = 1 / (sizeof(struct foo_s) == (sizeof(char) + sizeof(long))), + };]])], + [gcry_cv_gcc_attribute_packed=yes])]) +if test "$gcry_cv_gcc_attribute_packed" = "yes" ; then + AC_DEFINE(HAVE_GCC_ATTRIBUTE_PACKED,1, + [Defined if a GCC style "__attribute__ ((packed))" is supported]) +fi + + +# +# Check whether the compiler supports the GCC style may_alias attribute +# +AC_CACHE_CHECK([whether the GCC style may_alias attribute is supported], + [gcry_cv_gcc_attribute_may_alias], + [gcry_cv_gcc_attribute_may_alias=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[typedef struct foo_s { int a; } + __attribute__ ((may_alias)) foo_t;]])], + [gcry_cv_gcc_attribute_may_alias=yes])]) +if test "$gcry_cv_gcc_attribute_may_alias" = "yes" ; then + AC_DEFINE(HAVE_GCC_ATTRIBUTE_MAY_ALIAS,1, + [Defined if a GCC style "__attribute__ ((may_alias))" is supported]) +fi + + +# Restore flags. +CFLAGS=$_gcc_cflags_save; + + +# +# Check whether the compiler supports 'asm' or '__asm__' keyword for +# assembler blocks. +# +AC_CACHE_CHECK([whether 'asm' assembler keyword is supported], + [gcry_cv_have_asm], + [gcry_cv_have_asm=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { asm("":::"memory"); }]])], + [gcry_cv_have_asm=yes])]) +AC_CACHE_CHECK([whether '__asm__' assembler keyword is supported], + [gcry_cv_have___asm__], + [gcry_cv_have___asm__=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { __asm__("":::"memory"); }]])], + [gcry_cv_have___asm__=yes])]) +if test "$gcry_cv_have_asm" = "no" ; then + if test "$gcry_cv_have___asm__" = "yes" ; then + AC_DEFINE(asm,__asm__, + [Define to supported assembler block keyword, if plain 'asm' was not + supported]) + fi +fi + + +# +# Check whether the compiler supports inline assembly memory barrier. +# +if test "$gcry_cv_have_asm" = "no" ; then + if test "$gcry_cv_have___asm__" = "yes" ; then + AC_CACHE_CHECK([whether inline assembly memory barrier is supported], + [gcry_cv_have_asm_volatile_memory], + [gcry_cv_have_asm_volatile_memory=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { __asm__ volatile("":::"memory"); }]])], + [gcry_cv_have_asm_volatile_memory=yes])]) + fi +else + AC_CACHE_CHECK([whether inline assembly memory barrier is supported], + [gcry_cv_have_asm_volatile_memory], + [gcry_cv_have_asm_volatile_memory=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { asm volatile("":::"memory"); }]])], + [gcry_cv_have_asm_volatile_memory=yes])]) +fi +if test "$gcry_cv_have_asm_volatile_memory" = "yes" ; then + AC_DEFINE(HAVE_GCC_ASM_VOLATILE_MEMORY,1, + [Define if inline asm memory barrier is supported]) +fi + + +# +# Check whether GCC assembler supports features needed for our ARM +# implementations. This needs to be done before setting up the +# assembler stuff. +# +AC_CACHE_CHECK([whether GCC assembler is compatible for ARM assembly implementations], + [gcry_cv_gcc_arm_platform_as_ok], + [gcry_cv_gcc_arm_platform_as_ok=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + /* Test if assembler supports UAL syntax. */ + ".syntax unified\n\t" + ".arm\n\t" /* our assembly code is in ARM mode */ + /* Following causes error if assembler ignored '.syntax unified'. */ + "asmfunc:\n\t" + "add %r0, %r0, %r4, ror #12;\n\t" + + /* Test if '.type' and '.size' are supported. */ + ".size asmfunc,.-asmfunc;\n\t" + ".type asmfunc,%function;\n\t" + );]])], + [gcry_cv_gcc_arm_platform_as_ok=yes])]) +if test "$gcry_cv_gcc_arm_platform_as_ok" = "yes" ; then + AC_DEFINE(HAVE_COMPATIBLE_GCC_ARM_PLATFORM_AS,1, + [Defined if underlying assembler is compatible with ARM assembly implementations]) +fi + + +# +# Check whether GCC assembler supports features needed for our ARMv8/Aarch64 +# implementations. This needs to be done before setting up the +# assembler stuff. +# +AC_CACHE_CHECK([whether GCC assembler is compatible for ARMv8/Aarch64 assembly implementations], + [gcry_cv_gcc_aarch64_platform_as_ok], + [gcry_cv_gcc_aarch64_platform_as_ok=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + "asmfunc:\n\t" + "eor x0, x0, x30, ror #12;\n\t" + "add x0, x0, x30, asr #12;\n\t" + "eor v0.16b, v0.16b, v31.16b;\n\t" + + /* Test if '.type' and '.size' are supported. */ + ".size asmfunc,.-asmfunc;\n\t" + ".type asmfunc,@function;\n\t" + );]])], + [gcry_cv_gcc_aarch64_platform_as_ok=yes])]) +if test "$gcry_cv_gcc_aarch64_platform_as_ok" = "yes" ; then + AC_DEFINE(HAVE_COMPATIBLE_GCC_AARCH64_PLATFORM_AS,1, + [Defined if underlying assembler is compatible with ARMv8/Aarch64 assembly implementations]) +fi + + +# +# Check whether underscores in symbols are required. This needs to be +# done before setting up the assembler stuff. +# +GNUPG_SYS_SYMBOL_UNDERSCORE() + + +################################# +#### #### +#### Setup assembler stuff. #### +#### Define mpi_cpu_arch. #### +#### #### +################################# +AC_ARG_ENABLE(mpi-path, + AC_HELP_STRING([--enable-mpi-path=EXTRA_PATH], + [prepend EXTRA_PATH to list of CPU specific optimizations]), + mpi_extra_path="$enableval",mpi_extra_path="") +AC_MSG_CHECKING(architecture and mpi assembler functions) +if test -f $srcdir/mpi/config.links ; then + . $srcdir/mpi/config.links + AC_CONFIG_LINKS("$mpi_ln_list") + ac_cv_mpi_sflags="$mpi_sflags" + AC_MSG_RESULT($mpi_cpu_arch) +else + AC_MSG_RESULT(failed) + AC_MSG_ERROR([mpi/config.links missing!]) +fi +MPI_SFLAGS="$ac_cv_mpi_sflags" +AC_SUBST(MPI_SFLAGS) + +AM_CONDITIONAL(MPI_MOD_ASM_MPIH_ADD1, test "$mpi_mod_asm_mpih_add1" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_MPIH_SUB1, test "$mpi_mod_asm_mpih_sub1" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_MPIH_MUL1, test "$mpi_mod_asm_mpih_mul1" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_MPIH_MUL2, test "$mpi_mod_asm_mpih_mul2" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_MPIH_MUL3, test "$mpi_mod_asm_mpih_mul3" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_MPIH_LSHIFT, test "$mpi_mod_asm_mpih_lshift" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_MPIH_RSHIFT, test "$mpi_mod_asm_mpih_rshift" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_UDIV, test "$mpi_mod_asm_udiv" = yes) +AM_CONDITIONAL(MPI_MOD_ASM_UDIV_QRNND, test "$mpi_mod_asm_udiv_qrnnd" = yes) +AM_CONDITIONAL(MPI_MOD_C_MPIH_ADD1, test "$mpi_mod_c_mpih_add1" = yes) +AM_CONDITIONAL(MPI_MOD_C_MPIH_SUB1, test "$mpi_mod_c_mpih_sub1" = yes) +AM_CONDITIONAL(MPI_MOD_C_MPIH_MUL1, test "$mpi_mod_c_mpih_mul1" = yes) +AM_CONDITIONAL(MPI_MOD_C_MPIH_MUL2, test "$mpi_mod_c_mpih_mul2" = yes) +AM_CONDITIONAL(MPI_MOD_C_MPIH_MUL3, test "$mpi_mod_c_mpih_mul3" = yes) +AM_CONDITIONAL(MPI_MOD_C_MPIH_LSHIFT, test "$mpi_mod_c_mpih_lshift" = yes) +AM_CONDITIONAL(MPI_MOD_C_MPIH_RSHIFT, test "$mpi_mod_c_mpih_rshift" = yes) +AM_CONDITIONAL(MPI_MOD_C_UDIV, test "$mpi_mod_c_udiv" = yes) +AM_CONDITIONAL(MPI_MOD_C_UDIV_QRNND, test "$mpi_mod_c_udiv_qrnnd" = yes) + +# Reset non applicable feature flags. +if test "$mpi_cpu_arch" != "x86" ; then + aesnisupport="n/a" + pclmulsupport="n/a" + sse41support="n/a" + avxsupport="n/a" + avx2support="n/a" + padlocksupport="n/a" + jentsupport="n/a" + drngsupport="n/a" +fi + +if test "$mpi_cpu_arch" != "arm" ; then + if test "$mpi_cpu_arch" != "aarch64" ; then + neonsupport="n/a" + armcryptosupport="n/a" + fi +fi + + +############################################# +#### #### +#### Platform specific compiler checks. #### +#### #### +############################################# + + +# Following tests depend on warnings to cause compile to fail, so set -Werror +# temporarily. +_gcc_cflags_save=$CFLAGS +CFLAGS="$CFLAGS -Werror" + + +# +# Check whether compiler supports 'ms_abi' function attribute. +# +AC_CACHE_CHECK([whether compiler supports 'ms_abi' function attribute], + [gcry_cv_gcc_attribute_ms_abi], + [gcry_cv_gcc_attribute_ms_abi=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[int __attribute__ ((ms_abi)) proto(int);]])], + [gcry_cv_gcc_attribute_ms_abi=yes])]) +if test "$gcry_cv_gcc_attribute_ms_abi" = "yes" ; then + AC_DEFINE(HAVE_GCC_ATTRIBUTE_MS_ABI,1, + [Defined if compiler supports "__attribute__ ((ms_abi))" function attribute]) +fi + + +# +# Check whether compiler supports 'sysv_abi' function attribute. +# +AC_CACHE_CHECK([whether compiler supports 'sysv_abi' function attribute], + [gcry_cv_gcc_attribute_sysv_abi], + [gcry_cv_gcc_attribute_sysv_abi=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[int __attribute__ ((sysv_abi)) proto(int);]])], + [gcry_cv_gcc_attribute_sysv_abi=yes])]) +if test "$gcry_cv_gcc_attribute_sysv_abi" = "yes" ; then + AC_DEFINE(HAVE_GCC_ATTRIBUTE_SYSV_ABI,1, + [Defined if compiler supports "__attribute__ ((sysv_abi))" function attribute]) +fi + + +# +# Check whether default calling convention is 'ms_abi'. +# +if test "$gcry_cv_gcc_attribute_ms_abi" = "yes" ; then + AC_CACHE_CHECK([whether default calling convention is 'ms_abi'], + [gcry_cv_gcc_default_abi_is_ms_abi], + [gcry_cv_gcc_default_abi_is_ms_abi=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void *test(void) { + void *(*def_func)(void) = test; + void *__attribute__((ms_abi))(*msabi_func)(void); + /* warning on SysV abi targets, passes on Windows based targets */ + msabi_func = def_func; + return msabi_func; + }]])], + [gcry_cv_gcc_default_abi_is_ms_abi=yes])]) + if test "$gcry_cv_gcc_default_abi_is_ms_abi" = "yes" ; then + AC_DEFINE(HAVE_GCC_DEFAULT_ABI_IS_MS_ABI,1, + [Defined if default calling convention is 'ms_abi']) + fi +fi + + +# +# Check whether default calling convention is 'sysv_abi'. +# +if test "$gcry_cv_gcc_attribute_sysv_abi" = "yes" ; then + AC_CACHE_CHECK([whether default calling convention is 'sysv_abi'], + [gcry_cv_gcc_default_abi_is_sysv_abi], + [gcry_cv_gcc_default_abi_is_sysv_abi=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void *test(void) { + void *(*def_func)(void) = test; + void *__attribute__((sysv_abi))(*sysvabi_func)(void); + /* warning on MS ABI targets, passes on SysV ABI targets */ + sysvabi_func = def_func; + return sysvabi_func; + }]])], + [gcry_cv_gcc_default_abi_is_sysv_abi=yes])]) + if test "$gcry_cv_gcc_default_abi_is_sysv_abi" = "yes" ; then + AC_DEFINE(HAVE_GCC_DEFAULT_ABI_IS_SYSV_ABI,1, + [Defined if default calling convention is 'sysv_abi']) + fi +fi + + +# Restore flags. +CFLAGS=$_gcc_cflags_save; + + +# +# Check whether GCC inline assembler supports SSSE3 instructions +# This is required for the AES-NI instructions. +# +AC_CACHE_CHECK([whether GCC inline assembler supports SSSE3 instructions], + [gcry_cv_gcc_inline_asm_ssse3], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_inline_asm_ssse3="n/a" + else + gcry_cv_gcc_inline_asm_ssse3=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[static unsigned char be_mask[16] __attribute__ ((aligned (16))) = + { 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 }; + void a(void) { + __asm__("pshufb %[mask], %%xmm2\n\t"::[mask]"m"(*be_mask):); + }]])], + [gcry_cv_gcc_inline_asm_ssse3=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_ssse3" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_SSSE3,1, + [Defined if inline assembler supports SSSE3 instructions]) +fi + + +# +# Check whether GCC inline assembler supports PCLMUL instructions. +# +AC_CACHE_CHECK([whether GCC inline assembler supports PCLMUL instructions], + [gcry_cv_gcc_inline_asm_pclmul], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_inline_asm_pclmul="n/a" + else + gcry_cv_gcc_inline_asm_pclmul=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { + __asm__("pclmulqdq \$0, %%xmm1, %%xmm3\n\t":::"cc"); + }]])], + [gcry_cv_gcc_inline_asm_pclmul=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_pclmul" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_PCLMUL,1, + [Defined if inline assembler supports PCLMUL instructions]) +fi + +# +# Check whether GCC inline assembler supports SSE4.1 instructions. +# +AC_CACHE_CHECK([whether GCC inline assembler supports SSE4.1 instructions], + [gcry_cv_gcc_inline_asm_sse41], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_inline_asm_sse41="n/a" + else + gcry_cv_gcc_inline_asm_sse41=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { + int i; + __asm__("pextrd \$2, %%xmm0, %[out]\n\t" : [out] "=m" (i)); + }]])], + [gcry_cv_gcc_inline_asm_sse41=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_sse41" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_SSE41,1, + [Defined if inline assembler supports SSE4.1 instructions]) +fi + + +# +# Check whether GCC inline assembler supports AVX instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports AVX instructions], + [gcry_cv_gcc_inline_asm_avx], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_inline_asm_avx="n/a" + else + gcry_cv_gcc_inline_asm_avx=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { + __asm__("xgetbv; vaesdeclast (%[mem]),%%xmm0,%%xmm7\n\t"::[mem]"r"(0):); + }]])], + [gcry_cv_gcc_inline_asm_avx=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_avx" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_AVX,1, + [Defined if inline assembler supports AVX instructions]) +fi + + +# +# Check whether GCC inline assembler supports AVX2 instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports AVX2 instructions], + [gcry_cv_gcc_inline_asm_avx2], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_inline_asm_avx2="n/a" + else + gcry_cv_gcc_inline_asm_avx2=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[void a(void) { + __asm__("xgetbv; vpbroadcastb %%xmm7,%%ymm1\n\t":::"cc"); + }]])], + [gcry_cv_gcc_inline_asm_avx2=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_avx2" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_AVX2,1, + [Defined if inline assembler supports AVX2 instructions]) +fi + + +# +# Check whether GCC inline assembler supports BMI2 instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports BMI2 instructions], + [gcry_cv_gcc_inline_asm_bmi2], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_inline_asm_bmi2="n/a" + else + gcry_cv_gcc_inline_asm_bmi2=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[unsigned int a(unsigned int x, unsigned int y) { + unsigned int tmp1, tmp2; + asm ("rorxl %2, %1, %0" + : "=r" (tmp1) + : "rm0" (x), "J" (32 - ((23) & 31))); + asm ("andnl %2, %1, %0" + : "=r" (tmp2) + : "r0" (x), "rm" (y)); + return tmp1 + tmp2; + }]])], + [gcry_cv_gcc_inline_asm_bmi2=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_bmi2" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_BMI2,1, + [Defined if inline assembler supports BMI2 instructions]) +fi + + +# +# Check whether GCC assembler needs "-Wa,--divide" to correctly handle +# constant division +# +if test $amd64_as_feature_detection = yes; then + AC_CACHE_CHECK([whether GCC assembler handles division correctly], + [gcry_cv_gcc_as_const_division_ok], + [gcry_cv_gcc_as_const_division_ok=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__("xorl \$(123456789/12345678), %ebp;\n\t");]])], + [gcry_cv_gcc_as_const_division_ok=yes])]) + if test "$gcry_cv_gcc_as_const_division_ok" = "no" ; then + # + # Add '-Wa,--divide' to CPPFLAGS and try check again. + # + _gcc_cppflags_save="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS -Wa,--divide" + AC_CACHE_CHECK([whether GCC assembler handles division correctly with "-Wa,--divide"], + [gcry_cv_gcc_as_const_division_with_wadivide_ok], + [gcry_cv_gcc_as_const_division_with_wadivide_ok=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__("xorl \$(123456789/12345678), %ebp;\n\t");]])], + [gcry_cv_gcc_as_const_division_with_wadivide_ok=yes])]) + if test "$gcry_cv_gcc_as_const_division_with_wadivide_ok" = "no" ; then + # '-Wa,--divide' did not work, restore old flags. + CPPFLAGS="$_gcc_cppflags_save" + fi + fi +fi + + +# +# Check whether GCC assembler supports features needed for our amd64 +# implementations +# +if test $amd64_as_feature_detection = yes; then + AC_CACHE_CHECK([whether GCC assembler is compatible for amd64 assembly implementations], + [gcry_cv_gcc_amd64_platform_as_ok], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_amd64_platform_as_ok="n/a" + else + gcry_cv_gcc_amd64_platform_as_ok=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + /* Test if '.type' and '.size' are supported. */ + /* These work only on ELF targets. */ + "asmfunc:\n\t" + ".size asmfunc,.-asmfunc;\n\t" + ".type asmfunc,@function;\n\t" + /* Test if assembler allows use of '/' for constant division + * (Solaris/x86 issue). If previous constant division check + * and "-Wa,--divide" workaround failed, this causes assembly + * to be disable on this machine. */ + "xorl \$(123456789/12345678), %ebp;\n\t" + );]])], + [gcry_cv_gcc_amd64_platform_as_ok=yes]) + fi]) + if test "$gcry_cv_gcc_amd64_platform_as_ok" = "yes" ; then + AC_DEFINE(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS,1, + [Defined if underlying assembler is compatible with amd64 assembly implementations]) + fi + if test "$gcry_cv_gcc_amd64_platform_as_ok" = "no" && + test "$gcry_cv_gcc_attribute_sysv_abi" = "yes" && + test "$gcry_cv_gcc_default_abi_is_ms_abi" = "yes"; then + AC_CACHE_CHECK([whether GCC assembler is compatible for WIN64 assembly implementations], + [gcry_cv_gcc_win64_platform_as_ok], + [gcry_cv_gcc_win64_platform_as_ok=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + ".globl asmfunc\n\t" + "asmfunc:\n\t" + "xorq \$(1234), %rbp;\n\t" + );]])], + [gcry_cv_gcc_win64_platform_as_ok=yes])]) + if test "$gcry_cv_gcc_win64_platform_as_ok" = "yes" ; then + AC_DEFINE(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS,1, + [Defined if underlying assembler is compatible with WIN64 assembly implementations]) + fi + fi +fi + + +# +# Check whether GCC assembler supports features needed for assembly +# implementations that use Intel syntax +# +AC_CACHE_CHECK([whether GCC assembler is compatible for Intel syntax assembly implementations], + [gcry_cv_gcc_platform_as_ok_for_intel_syntax], + [if test "$mpi_cpu_arch" != "x86" ; then + gcry_cv_gcc_platform_as_ok_for_intel_syntax="n/a" + else + gcry_cv_gcc_platform_as_ok_for_intel_syntax=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + ".intel_syntax noprefix\n\t" + "pxor xmm1, xmm7;\n\t" + /* Intel syntax implementation also use GAS macros, so check + * for them here. */ + "VAL_A = xmm4\n\t" + "VAL_B = xmm2\n\t" + ".macro SET_VAL_A p1\n\t" + " VAL_A = \\\\p1 \n\t" + ".endm\n\t" + ".macro SET_VAL_B p1\n\t" + " VAL_B = \\\\p1 \n\t" + ".endm\n\t" + "vmovdqa VAL_A, VAL_B;\n\t" + "SET_VAL_A eax\n\t" + "SET_VAL_B ebp\n\t" + "add VAL_A, VAL_B;\n\t" + "add VAL_B, 0b10101;\n\t" + );]])], + [gcry_cv_gcc_platform_as_ok_for_intel_syntax=yes]) + fi]) +if test "$gcry_cv_gcc_platform_as_ok_for_intel_syntax" = "yes" ; then + AC_DEFINE(HAVE_INTEL_SYNTAX_PLATFORM_AS,1, + [Defined if underlying assembler is compatible with Intel syntax assembly implementations]) +fi + + +# +# Check whether compiler is configured for ARMv6 or newer architecture +# +AC_CACHE_CHECK([whether compiler is configured for ARMv6 or newer architecture], + [gcry_cv_cc_arm_arch_is_v6], + [if test "$mpi_cpu_arch" != "arm" ; then + gcry_cv_cc_arm_arch_is_v6="n/a" + else + gcry_cv_cc_arm_arch_is_v6=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[ + #if defined(__arm__) && \ + ((defined(__ARM_ARCH) && __ARM_ARCH >= 6) \ + || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \ + || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) \ + || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) \ + || defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \ + || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \ + || defined(__ARM_ARCH_7EM__)) + /* empty */ + #else + /* fail compile if not ARMv6. */ + not_armv6 not_armv6 = (not_armv6)not_armv6; + #endif + ]])], + [gcry_cv_cc_arm_arch_is_v6=yes]) + fi]) +if test "$gcry_cv_cc_arm_arch_is_v6" = "yes" ; then + AC_DEFINE(HAVE_ARM_ARCH_V6,1, + [Defined if ARM architecture is v6 or newer]) +fi + + +# +# Check whether GCC inline assembler supports NEON instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports NEON instructions], + [gcry_cv_gcc_inline_asm_neon], + [if test "$mpi_cpu_arch" != "arm" ; then + gcry_cv_gcc_inline_asm_neon="n/a" + else + gcry_cv_gcc_inline_asm_neon=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + ".syntax unified\n\t" + ".arm\n\t" + ".fpu neon\n\t" + "vld1.64 {%q0-%q1}, [%r0]!;\n\t" + "vrev64.8 %q0, %q3;\n\t" + "vadd.u64 %q0, %q1;\n\t" + "vadd.s64 %d3, %d2, %d3;\n\t" + ); + ]])], + [gcry_cv_gcc_inline_asm_neon=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_neon" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_NEON,1, + [Defined if inline assembler supports NEON instructions]) +fi + + +# +# Check whether GCC inline assembler supports AArch32 Crypto Extension instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports AArch32 Crypto Extension instructions], + [gcry_cv_gcc_inline_asm_aarch32_crypto], + [if test "$mpi_cpu_arch" != "arm" ; then + gcry_cv_gcc_inline_asm_aarch32_crypto="n/a" + else + gcry_cv_gcc_inline_asm_aarch32_crypto=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + ".syntax unified\n\t" + ".arch armv8-a\n\t" + ".arm\n\t" + ".fpu crypto-neon-fp-armv8\n\t" + + "sha1h.32 q0, q0;\n\t" + "sha1c.32 q0, q0, q0;\n\t" + "sha1p.32 q0, q0, q0;\n\t" + "sha1su0.32 q0, q0, q0;\n\t" + "sha1su1.32 q0, q0;\n\t" + + "sha256h.32 q0, q0, q0;\n\t" + "sha256h2.32 q0, q0, q0;\n\t" + "sha1p.32 q0, q0, q0;\n\t" + "sha256su0.32 q0, q0;\n\t" + "sha256su1.32 q0, q0, q15;\n\t" + + "aese.8 q0, q0;\n\t" + "aesd.8 q0, q0;\n\t" + "aesmc.8 q0, q0;\n\t" + "aesimc.8 q0, q0;\n\t" + + "vmull.p64 q0, d0, d0;\n\t" + ); + ]])], + [gcry_cv_gcc_inline_asm_aarch32_crypto=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_aarch32_crypto" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_AARCH32_CRYPTO,1, + [Defined if inline assembler supports AArch32 Crypto Extension instructions]) +fi + + +# +# Check whether GCC inline assembler supports AArch64 NEON instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports AArch64 NEON instructions], + [gcry_cv_gcc_inline_asm_aarch64_neon], + [if test "$mpi_cpu_arch" != "aarch64" ; then + gcry_cv_gcc_inline_asm_aarch64_neon="n/a" + else + gcry_cv_gcc_inline_asm_aarch64_neon=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + ".cpu generic+simd\n\t" + "mov w0, \#42;\n\t" + "dup v0.8b, w0;\n\t" + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b},[x0],\#32;\n\t" + ); + ]])], + [gcry_cv_gcc_inline_asm_aarch64_neon=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_aarch64_neon" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_AARCH64_NEON,1, + [Defined if inline assembler supports AArch64 NEON instructions]) +fi + + +# +# Check whether GCC inline assembler supports AArch64 Crypto Extension instructions +# +AC_CACHE_CHECK([whether GCC inline assembler supports AArch64 Crypto Extension instructions], + [gcry_cv_gcc_inline_asm_aarch64_crypto], + [if test "$mpi_cpu_arch" != "aarch64" ; then + gcry_cv_gcc_inline_asm_aarch64_crypto="n/a" + else + gcry_cv_gcc_inline_asm_aarch64_crypto=no + AC_COMPILE_IFELSE([AC_LANG_SOURCE( + [[__asm__( + ".cpu generic+simd+crypto\n\t" + + "mov w0, \#42;\n\t" + "dup v0.8b, w0;\n\t" + "ld4 {v0.8b,v1.8b,v2.8b,v3.8b},[x0],\#32;\n\t" + + "sha1h s0, s0;\n\t" + "sha1c q0, s0, v0.4s;\n\t" + "sha1p q0, s0, v0.4s;\n\t" + "sha1su0 v0.4s, v0.4s, v0.4s;\n\t" + "sha1su1 v0.4s, v0.4s;\n\t" + + "sha256h q0, q0, v0.4s;\n\t" + "sha256h2 q0, q0, v0.4s;\n\t" + "sha1p q0, s0, v0.4s;\n\t" + "sha256su0 v0.4s, v0.4s;\n\t" + "sha256su1 v0.4s, v0.4s, v31.4s;\n\t" + + "aese v0.16b, v0.16b;\n\t" + "aesd v0.16b, v0.16b;\n\t" + "aesmc v0.16b, v0.16b;\n\t" + "aesimc v0.16b, v0.16b;\n\t" + + "pmull v0.1q, v0.1d, v31.1d;\n\t" + "pmull2 v0.1q, v0.2d, v31.2d;\n\t" + ); + ]])], + [gcry_cv_gcc_inline_asm_aarch64_crypto=yes]) + fi]) +if test "$gcry_cv_gcc_inline_asm_aarch64_crypto" = "yes" ; then + AC_DEFINE(HAVE_GCC_INLINE_ASM_AARCH64_CRYPTO,1, + [Defined if inline assembler supports AArch64 Crypto Extension instructions]) +fi + + +####################################### +#### Checks for library functions. #### +####################################### + +AC_FUNC_VPRINTF +# We have replacements for these in src/missing-string.c +AC_CHECK_FUNCS(stpcpy strcasecmp) +# We have replacements for these in src/g10lib.h +AC_CHECK_FUNCS(strtoul memmove stricmp atexit raise) +# Other checks +AC_CHECK_FUNCS(strerror rand mmap getpagesize sysconf waitpid wait4) +AC_CHECK_FUNCS(gettimeofday getrusage gethrtime clock_gettime syslog) +AC_CHECK_FUNCS(syscall fcntl ftruncate flockfile) + +GNUPG_CHECK_MLOCK + +# +# Replacement functions. +# +AC_REPLACE_FUNCS([getpid clock]) + + +# +# Check whether it is necessary to link against libdl. +# +DL_LIBS="" +if test "$use_hmac_binary_check" = yes ; then + _gcry_save_libs="$LIBS" + LIBS="" + AC_SEARCH_LIBS(dlopen, c dl,,,) + DL_LIBS=$LIBS + LIBS="$_gcry_save_libs" + LIBGCRYPT_CONFIG_LIBS="${LIBGCRYPT_CONFIG_LIBS} ${DL_LIBS}" +fi +AC_SUBST(DL_LIBS) + + +# +# Check whether we can use Linux capabilities as requested. +# +if test "$use_capabilities" = "yes" ; then +use_capabilities=no +AC_CHECK_HEADERS(sys/capability.h) +if test "$ac_cv_header_sys_capability_h" = "yes" ; then + AC_CHECK_LIB(cap, cap_init, ac_need_libcap=1) + if test "$ac_cv_lib_cap_cap_init" = "yes"; then + AC_DEFINE(USE_CAPABILITIES,1, + [define if capabilities should be used]) + LIBS="$LIBS -lcap" + use_capabilities=yes + fi +fi +if test "$use_capabilities" = "no" ; then + AC_MSG_WARN([[ +*** +*** The use of capabilities on this system is not possible. +*** You need a recent Linux kernel and some patches: +*** fcaps-2.2.9-990610.patch (kernel patch for 2.2.9) +*** fcap-module-990613.tar.gz (kernel module) +*** libcap-1.92.tar.gz (user mode library and utilities) +*** And you have to configure the kernel with CONFIG_VFS_CAP_PLUGIN +*** set (filesystems menu). Be warned: This code is *really* ALPHA. +***]]) +fi +fi + +# Check whether a random device is available. +if test "$try_dev_random" = yes ; then + AC_CACHE_CHECK(for random device, ac_cv_have_dev_random, + [if test -r "$NAME_OF_DEV_RANDOM" && test -r "$NAME_OF_DEV_URANDOM" ; then + ac_cv_have_dev_random=yes; else ac_cv_have_dev_random=no; fi]) + if test "$ac_cv_have_dev_random" = yes; then + AC_DEFINE(HAVE_DEV_RANDOM,1, + [defined if the system supports a random device] ) + fi +else + AC_MSG_CHECKING(for random device) + ac_cv_have_dev_random=no + AC_MSG_RESULT(has been disabled) +fi + +# Figure out the random modules for this configuration. +if test "$random" = "default"; then + + # Select default value. + if test "$ac_cv_have_dev_random" = yes; then + # Try Linuxish random device. + random_modules="linux" + else + case "${host}" in + *-*-mingw32ce*) + # WindowsCE random device. + random_modules="w32ce" + ;; + *-*-mingw32*|*-*-cygwin*) + # Windows random device. + random_modules="w32" + ;; + *) + # Build everything, allow to select at runtime. + random_modules="$auto_random_modules" + ;; + esac + fi +else + if test "$random" = "auto"; then + # Build everything, allow to select at runtime. + random_modules="$auto_random_modules" + else + random_modules="$random" + fi +fi + + +# +# Other defines +# +if test mym4_isgit = "yes"; then + AC_DEFINE(IS_DEVELOPMENT_VERSION,1, + [Defined if this is not a regular release]) +fi + + +AM_CONDITIONAL(CROSS_COMPILING, test x$cross_compiling = xyes) + + +# This is handy for debugging so the compiler doesn't rearrange +# things and eliminate variables. +AC_ARG_ENABLE(optimization, + AC_HELP_STRING([--disable-optimization], + [disable compiler optimization]), + [if test $enableval = no ; then + CFLAGS=`echo $CFLAGS | sed 's/-O[[0-9]]//'` + fi]) + +AC_MSG_NOTICE([checking for cc features]) +# CFLAGS mangling when using gcc. +if test "$GCC" = yes; then + AC_MSG_CHECKING([if gcc supports -fno-delete-null-pointer-checks]) + _gcc_cflags_save=$CFLAGS + CFLAGS="-fno-delete-null-pointer-checks" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no) + AC_MSG_RESULT($_gcc_wopt) + CFLAGS=$_gcc_cflags_save; + if test x"$_gcc_wopt" = xyes ; then + CFLAGS="$CFLAGS -fno-delete-null-pointer-checks" + fi + + CFLAGS="$CFLAGS -Wall" + if test "$USE_MAINTAINER_MODE" = "yes"; then + CFLAGS="$CFLAGS -Wcast-align -Wshadow -Wstrict-prototypes" + CFLAGS="$CFLAGS -Wformat -Wno-format-y2k -Wformat-security" + + # If -Wno-missing-field-initializers is supported we can enable a + # a bunch of really useful warnings. + AC_MSG_CHECKING([if gcc supports -Wno-missing-field-initializers]) + _gcc_cflags_save=$CFLAGS + CFLAGS="-Wno-missing-field-initializers" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no) + AC_MSG_RESULT($_gcc_wopt) + CFLAGS=$_gcc_cflags_save; + if test x"$_gcc_wopt" = xyes ; then + CFLAGS="$CFLAGS -W -Wextra -Wbad-function-cast" + CFLAGS="$CFLAGS -Wwrite-strings" + CFLAGS="$CFLAGS -Wdeclaration-after-statement" + CFLAGS="$CFLAGS -Wno-missing-field-initializers" + CFLAGS="$CFLAGS -Wno-sign-compare" + fi + + AC_MSG_CHECKING([if gcc supports -Wpointer-arith]) + _gcc_cflags_save=$CFLAGS + CFLAGS="-Wpointer-arith" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no) + AC_MSG_RESULT($_gcc_wopt) + CFLAGS=$_gcc_cflags_save; + if test x"$_gcc_wopt" = xyes ; then + CFLAGS="$CFLAGS -Wpointer-arith" + fi + fi +fi + +# Check whether as(1) supports a noeexecstack feature. This test +# includes an override option. +CL_AS_NOEXECSTACK + + +AC_SUBST(LIBGCRYPT_CONFIG_API_VERSION) +AC_SUBST(LIBGCRYPT_CONFIG_LIBS) +AC_SUBST(LIBGCRYPT_CONFIG_CFLAGS) +AC_SUBST(LIBGCRYPT_CONFIG_HOST) +AC_SUBST(LIBGCRYPT_THREAD_MODULES) + +AC_CONFIG_COMMANDS([gcrypt-conf],[[ +chmod +x src/libgcrypt-config +]],[[ +prefix=$prefix +exec_prefix=$exec_prefix +libdir=$libdir +datadir=$datadir +DATADIRNAME=$DATADIRNAME +]]) + +##################### +#### Conclusion. #### +##################### + +# Check that requested feature can actually be used and define +# ENABLE_foo_SUPPORT macros. + +if test x"$aesnisupport" = xyes ; then + if test "$gcry_cv_gcc_inline_asm_ssse3" != "yes" ; then + aesnisupport="no (unsupported by compiler)" + fi +fi +if test x"$pclmulsupport" = xyes ; then + if test "$gcry_cv_gcc_inline_asm_pclmul" != "yes" ; then + pclmulsupport="no (unsupported by compiler)" + fi +fi +if test x"$sse41support" = xyes ; then + if test "$gcry_cv_gcc_inline_asm_sse41" != "yes" ; then + sse41support="no (unsupported by compiler)" + fi +fi +if test x"$avxsupport" = xyes ; then + if test "$gcry_cv_gcc_inline_asm_avx" != "yes" ; then + avxsupport="no (unsupported by compiler)" + fi +fi +if test x"$avx2support" = xyes ; then + if test "$gcry_cv_gcc_inline_asm_avx2" != "yes" ; then + avx2support="no (unsupported by compiler)" + fi +fi +if test x"$neonsupport" = xyes ; then + if test "$gcry_cv_gcc_inline_asm_neon" != "yes" ; then + if test "$gcry_cv_gcc_inline_asm_aarch64_neon" != "yes" ; then + neonsupport="no (unsupported by compiler)" + fi + fi +fi +if test x"$armcryptosupport" = xyes ; then + if test "$gcry_cv_gcc_inline_asm_aarch32_crypto" != "yes" ; then + if test "$gcry_cv_gcc_inline_asm_aarch64_crypto" != "yes" ; then + neonsupport="no (unsupported by compiler)" + fi + fi +fi + +if test x"$aesnisupport" = xyes ; then + AC_DEFINE(ENABLE_AESNI_SUPPORT, 1, + [Enable support for Intel AES-NI instructions.]) +fi +if test x"$pclmulsupport" = xyes ; then + AC_DEFINE(ENABLE_PCLMUL_SUPPORT, 1, + [Enable support for Intel PCLMUL instructions.]) +fi +if test x"$sse41support" = xyes ; then + AC_DEFINE(ENABLE_SSE41_SUPPORT, 1, + [Enable support for Intel SSE4.1 instructions.]) +fi +if test x"$avxsupport" = xyes ; then + AC_DEFINE(ENABLE_AVX_SUPPORT,1, + [Enable support for Intel AVX instructions.]) +fi +if test x"$avx2support" = xyes ; then + AC_DEFINE(ENABLE_AVX2_SUPPORT,1, + [Enable support for Intel AVX2 instructions.]) +fi +if test x"$neonsupport" = xyes ; then + AC_DEFINE(ENABLE_NEON_SUPPORT,1, + [Enable support for ARM NEON instructions.]) +fi +if test x"$armcryptosupport" = xyes ; then + AC_DEFINE(ENABLE_ARM_CRYPTO_SUPPORT,1, + [Enable support for ARMv8 Crypto Extension instructions.]) +fi +if test x"$jentsupport" = xyes ; then + AC_DEFINE(ENABLE_JENT_SUPPORT, 1, + [Enable support for the jitter entropy collector.]) +fi +if test x"$padlocksupport" = xyes ; then + AC_DEFINE(ENABLE_PADLOCK_SUPPORT, 1, + [Enable support for the PadLock engine.]) +fi +if test x"$drngsupport" = xyes ; then + AC_DEFINE(ENABLE_DRNG_SUPPORT, 1, + [Enable support for Intel DRNG (RDRAND instruction).]) +fi + + +# Define conditional sources and config.h symbols depending on the +# selected ciphers, pubkey-ciphers, digests, kdfs, and random modules. + +LIST_MEMBER(arcfour, $enabled_ciphers) +if test "$found" = "1"; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS arcfour.lo" + AC_DEFINE(USE_ARCFOUR, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS arcfour-amd64.lo" + ;; + esac +fi + +LIST_MEMBER(blowfish, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS blowfish.lo" + AC_DEFINE(USE_BLOWFISH, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS blowfish-amd64.lo" + ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS blowfish-arm.lo" + ;; + esac +fi + +LIST_MEMBER(cast5, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS cast5.lo" + AC_DEFINE(USE_CAST5, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS cast5-amd64.lo" + ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS cast5-arm.lo" + ;; + esac +fi + +LIST_MEMBER(des, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS des.lo" + AC_DEFINE(USE_DES, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS des-amd64.lo" + ;; + esac +fi + +LIST_MEMBER(aes, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael.lo" + AC_DEFINE(USE_AES, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-amd64.lo" + + # Build with the SSSE3 implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-ssse3-amd64.lo" + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-ssse3-amd64-asm.lo" + ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-arm.lo" + + # Build with the ARMv8/AArch32 CE implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-armv8-ce.lo" + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-armv8-aarch32-ce.lo" + ;; + aarch64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-aarch64.lo" + + # Build with the ARMv8/AArch64 CE implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-armv8-ce.lo" + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-armv8-aarch64-ce.lo" + ;; + esac + + case "$mpi_cpu_arch" in + x86) + # Build with the AES-NI implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-aesni.lo" + + # Build with the Padlock implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rijndael-padlock.lo" + ;; + esac +fi + +LIST_MEMBER(twofish, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS twofish.lo" + AC_DEFINE(USE_TWOFISH, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS twofish-amd64.lo" + + if test x"$avx2support" = xyes ; then + # Build with the AVX2 implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS twofish-avx2-amd64.lo" + fi + ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS twofish-arm.lo" + ;; + aarch64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS twofish-aarch64.lo" + ;; + esac +fi + +LIST_MEMBER(serpent, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS serpent.lo" + AC_DEFINE(USE_SERPENT, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the SSE2 implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS serpent-sse2-amd64.lo" + ;; + esac + + if test x"$avx2support" = xyes ; then + # Build with the AVX2 implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS serpent-avx2-amd64.lo" + fi + + if test x"$neonsupport" = xyes ; then + # Build with the NEON implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS serpent-armv7-neon.lo" + fi +fi + +LIST_MEMBER(rfc2268, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS rfc2268.lo" + AC_DEFINE(USE_RFC2268, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(seed, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS seed.lo" + AC_DEFINE(USE_SEED, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(camellia, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS camellia.lo camellia-glue.lo" + AC_DEFINE(USE_CAMELLIA, 1, [Defined if this module should be included]) + + case "${host}" in + arm*-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS camellia-arm.lo" + ;; + aarch64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS camellia-aarch64.lo" + ;; + esac + + if test x"$avxsupport" = xyes ; then + if test x"$aesnisupport" = xyes ; then + # Build with the AES-NI/AVX implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS camellia-aesni-avx-amd64.lo" + fi + fi + + if test x"$avx2support" = xyes ; then + if test x"$aesnisupport" = xyes ; then + # Build with the AES-NI/AVX2 implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS camellia-aesni-avx2-amd64.lo" + fi + fi +fi + +LIST_MEMBER(idea, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS idea.lo" + AC_DEFINE(USE_IDEA, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(salsa20, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS salsa20.lo" + AC_DEFINE(USE_SALSA20, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS salsa20-amd64.lo" + ;; + esac + + if test x"$neonsupport" = xyes ; then + # Build with the NEON implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS salsa20-armv7-neon.lo" + fi +fi + +LIST_MEMBER(gost28147, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS gost28147.lo" + AC_DEFINE(USE_GOST28147, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(chacha20, $enabled_ciphers) +if test "$found" = "1" ; then + GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20.lo" + AC_DEFINE(USE_CHACHA20, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-sse2-amd64.lo" + GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-ssse3-amd64.lo" + GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-avx2-amd64.lo" + ;; + esac + + if test x"$neonsupport" = xyes ; then + # Build with the NEON implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-armv7-neon.lo" + fi +fi + +case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS poly1305-sse2-amd64.lo" + GCRYPT_CIPHERS="$GCRYPT_CIPHERS poly1305-avx2-amd64.lo" + ;; +esac + +if test x"$neonsupport" = xyes ; then + # Build with the NEON implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS poly1305-armv7-neon.lo" +fi + +LIST_MEMBER(dsa, $enabled_pubkey_ciphers) +if test "$found" = "1" ; then + GCRYPT_PUBKEY_CIPHERS="$GCRYPT_PUBKEY_CIPHERS dsa.lo" + AC_DEFINE(USE_DSA, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(rsa, $enabled_pubkey_ciphers) +if test "$found" = "1" ; then + GCRYPT_PUBKEY_CIPHERS="$GCRYPT_PUBKEY_CIPHERS rsa.lo" + AC_DEFINE(USE_RSA, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(elgamal, $enabled_pubkey_ciphers) +if test "$found" = "1" ; then + GCRYPT_PUBKEY_CIPHERS="$GCRYPT_PUBKEY_CIPHERS elgamal.lo" + AC_DEFINE(USE_ELGAMAL, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(ecc, $enabled_pubkey_ciphers) +if test "$found" = "1" ; then + GCRYPT_PUBKEY_CIPHERS="$GCRYPT_PUBKEY_CIPHERS \ + ecc.lo ecc-curves.lo ecc-misc.lo \ + ecc-ecdsa.lo ecc-eddsa.lo ecc-gost.lo" + AC_DEFINE(USE_ECC, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(crc, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS crc.lo" + AC_DEFINE(USE_CRC, 1, [Defined if this module should be included]) + + case "${host}" in + i?86-*-* | x86_64-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS crc-intel-pclmul.lo" + ;; + esac +fi + +LIST_MEMBER(gostr3411-94, $enabled_digests) +if test "$found" = "1" ; then + # GOST R 34.11-94 internally uses GOST 28147-89 + LIST_MEMBER(gost28147, $enabled_ciphers) + if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS gostr3411-94.lo" + AC_DEFINE(USE_GOST_R_3411_94, 1, [Defined if this module should be included]) + fi +fi + +LIST_MEMBER(stribog, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS stribog.lo" + AC_DEFINE(USE_GOST_R_3411_12, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(md2, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS md2.lo" + AC_DEFINE(USE_MD2, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(md4, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS md4.lo" + AC_DEFINE(USE_MD4, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(md5, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS md5.lo" + AC_DEFINE(USE_MD5, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(rmd160, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS rmd160.lo" + AC_DEFINE(USE_RMD160, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(sha256, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha256.lo" + AC_DEFINE(USE_SHA256, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha256-ssse3-amd64.lo" + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha256-avx-amd64.lo" + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha256-avx2-bmi2-amd64.lo" + ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha256-armv8-aarch32-ce.lo" + ;; + aarch64-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha256-armv8-aarch64-ce.lo" + ;; + esac +fi + +LIST_MEMBER(sha512, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha512.lo" + AC_DEFINE(USE_SHA512, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha512-ssse3-amd64.lo" + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha512-avx-amd64.lo" + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha512-avx2-bmi2-amd64.lo" + ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha512-arm.lo" + ;; + esac + + if test x"$neonsupport" = xyes ; then + # Build with the NEON implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha512-armv7-neon.lo" + fi +fi + +LIST_MEMBER(sha3, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS keccak.lo" + AC_DEFINE(USE_SHA3, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + : + ;; + esac + + if test x"$neonsupport" = xyes ; then + # Build with the NEON implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS keccak-armv7-neon.lo" + fi +fi + +LIST_MEMBER(tiger, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS tiger.lo" + AC_DEFINE(USE_TIGER, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(whirlpool, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS whirlpool.lo" + AC_DEFINE(USE_WHIRLPOOL, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS whirlpool-sse2-amd64.lo" + ;; + esac +fi + +LIST_MEMBER(blake2, $enabled_digests) +if test "$found" = "1" ; then + GCRYPT_DIGESTS="$GCRYPT_DIGESTS blake2.lo" + AC_DEFINE(USE_BLAKE2, 1, [Defined if this module should be included]) +fi + +# SHA-1 needs to be included always for example because it is used by +# random-csprng.c. +GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha1.lo" +AC_DEFINE(USE_SHA1, 1, [Defined if this module should be included]) + +case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha1-ssse3-amd64.lo" + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha1-avx-amd64.lo" + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha1-avx-bmi2-amd64.lo" + ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha1-armv7-neon.lo" + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha1-armv8-aarch32-ce.lo" + ;; + aarch64-*-*) + # Build with the assembly implementation + GCRYPT_DIGESTS="$GCRYPT_DIGESTS sha1-armv8-aarch64-ce.lo" + ;; +esac + +LIST_MEMBER(scrypt, $enabled_kdfs) +if test "$found" = "1" ; then + GCRYPT_KDFS="$GCRYPT_KDFS scrypt.lo" + AC_DEFINE(USE_SCRYPT, 1, [Defined if this module should be included]) +fi + +LIST_MEMBER(linux, $random_modules) +if test "$found" = "1" ; then + GCRYPT_RANDOM="$GCRYPT_RANDOM rndlinux.lo" + AC_DEFINE(USE_RNDLINUX, 1, [Defined if the /dev/random RNG should be used.]) +fi + +LIST_MEMBER(unix, $random_modules) +if test "$found" = "1" ; then + GCRYPT_RANDOM="$GCRYPT_RANDOM rndunix.lo" + AC_DEFINE(USE_RNDUNIX, 1, [Defined if the default Unix RNG should be used.]) +fi + +LIST_MEMBER(egd, $random_modules) +if test "$found" = "1" ; then + GCRYPT_RANDOM="$GCRYPT_RANDOM rndegd.lo" + AC_DEFINE(USE_RNDEGD, 1, [Defined if the EGD based RNG should be used.]) +fi + +LIST_MEMBER(w32, $random_modules) +if test "$found" = "1" ; then + GCRYPT_RANDOM="$GCRYPT_RANDOM rndw32.lo" + AC_DEFINE(USE_RNDW32, 1, + [Defined if the Windows specific RNG should be used.]) +fi + +LIST_MEMBER(w32ce, $random_modules) +if test "$found" = "1" ; then + GCRYPT_RANDOM="$GCRYPT_RANDOM rndw32ce.lo" + AC_DEFINE(USE_RNDW32CE, 1, + [Defined if the WindowsCE specific RNG should be used.]) +fi + +AC_SUBST([GCRYPT_CIPHERS]) +AC_SUBST([GCRYPT_PUBKEY_CIPHERS]) +AC_SUBST([GCRYPT_DIGESTS]) +AC_SUBST([GCRYPT_KDFS]) +AC_SUBST([GCRYPT_RANDOM]) + +AC_SUBST(LIBGCRYPT_CIPHERS, $enabled_ciphers) +AC_SUBST(LIBGCRYPT_PUBKEY_CIPHERS, $enabled_pubkey_ciphers) +AC_SUBST(LIBGCRYPT_DIGESTS, $enabled_digests) + +# For printing the configuration we need a colon separated list of +# algorithm names. +tmp=`echo "$enabled_ciphers" | tr ' ' : ` +AC_DEFINE_UNQUOTED(LIBGCRYPT_CIPHERS, "$tmp", + [List of available cipher algorithms]) +tmp=`echo "$enabled_pubkey_ciphers" | tr ' ' : ` +AC_DEFINE_UNQUOTED(LIBGCRYPT_PUBKEY_CIPHERS, "$tmp", + [List of available public key cipher algorithms]) +tmp=`echo "$enabled_digests" | tr ' ' : ` +AC_DEFINE_UNQUOTED(LIBGCRYPT_DIGESTS, "$tmp", + [List of available digest algorithms]) +tmp=`echo "$enabled_kdfs" | tr ' ' : ` +AC_DEFINE_UNQUOTED(LIBGCRYPT_KDFS, "$tmp", + [List of available KDF algorithms]) + + +# +# Define conditional sources depending on the used hardware platform. +# Note that all possible modules must also be listed in +# src/Makefile.am (EXTRA_libgcrypt_la_SOURCES). +# +GCRYPT_HWF_MODULES= +case "$mpi_cpu_arch" in + x86) + AC_DEFINE(HAVE_CPU_ARCH_X86, 1, [Defined for the x86 platforms]) + GCRYPT_HWF_MODULES="hwf-x86.lo" + ;; + alpha) + AC_DEFINE(HAVE_CPU_ARCH_ALPHA, 1, [Defined for Alpha platforms]) + ;; + sparc) + AC_DEFINE(HAVE_CPU_ARCH_SPARC, 1, [Defined for SPARC platforms]) + ;; + mips) + AC_DEFINE(HAVE_CPU_ARCH_MIPS, 1, [Defined for MIPS platforms]) + ;; + m68k) + AC_DEFINE(HAVE_CPU_ARCH_M68K, 1, [Defined for M68k platforms]) + ;; + ppc) + AC_DEFINE(HAVE_CPU_ARCH_PPC, 1, [Defined for PPC platforms]) + ;; + arm) + AC_DEFINE(HAVE_CPU_ARCH_ARM, 1, [Defined for ARM platforms]) + GCRYPT_HWF_MODULES="hwf-arm.lo" + ;; + aarch64) + AC_DEFINE(HAVE_CPU_ARCH_ARM, 1, [Defined for ARM AArch64 platforms]) + GCRYPT_HWF_MODULES="hwf-arm.lo" + ;; +esac +AC_SUBST([GCRYPT_HWF_MODULES]) + + +# +# Option to disable building of doc file +# +build_doc=yes +AC_ARG_ENABLE([doc], AC_HELP_STRING([--disable-doc], + [do not build the documentation]), + build_doc=$enableval, build_doc=yes) +AM_CONDITIONAL([BUILD_DOC], [test "x$build_doc" != xno]) + + +# +# Provide information about the build. +# +BUILD_REVISION="mym4_revision" +AC_SUBST(BUILD_REVISION) +AC_DEFINE_UNQUOTED(BUILD_REVISION, "$BUILD_REVISION", + [GIT commit id revision used to build this package]) + +changequote(,)dnl +BUILD_FILEVERSION=`echo "$VERSION" | sed 's/\([0-9.]*\).*/\1./;s/\./,/g'` +changequote([,])dnl +BUILD_FILEVERSION="${BUILD_FILEVERSION}mym4_revision_dec" +AC_SUBST(BUILD_FILEVERSION) + +AC_ARG_ENABLE([build-timestamp], + AC_HELP_STRING([--enable-build-timestamp], + [set an explicit build timestamp for reproducibility. + (default is the current time in ISO-8601 format)]), + [if test "$enableval" = "yes"; then + BUILD_TIMESTAMP=`date -u +%Y-%m-%dT%H:%M+0000 2>/dev/null || date` + else + BUILD_TIMESTAMP="$enableval" + fi], + [BUILD_TIMESTAMP="<none>"]) +AC_SUBST(BUILD_TIMESTAMP) +AC_DEFINE_UNQUOTED(BUILD_TIMESTAMP, "$BUILD_TIMESTAMP", + [The time this package was configured for a build]) + + +# And create the files. +AC_CONFIG_FILES([ +Makefile +m4/Makefile +compat/Makefile +mpi/Makefile +cipher/Makefile +random/Makefile +doc/Makefile +src/Makefile +src/gcrypt.h +src/libgcrypt-config +src/libgcrypt.pc +src/versioninfo.rc +tests/Makefile +]) +AC_CONFIG_FILES([tests/hashtest-256g], [chmod +x tests/hashtest-256g]) +AC_CONFIG_FILES([tests/basic-disable-all-hwf], [chmod +x tests/basic-disable-all-hwf]) +AC_OUTPUT + + +detection_module="${GCRYPT_HWF_MODULES%.lo}" +test -n "$detection_module" || detection_module="none" + +# Give some feedback +GCRY_MSG_SHOW([],[]) +GCRY_MSG_SHOW([Libgcrypt],[v${VERSION} has been configured as follows:]) +GCRY_MSG_SHOW([],[]) +GCRY_MSG_SHOW([Platform: ],[$PRINTABLE_OS_NAME ($host)]) +GCRY_MSG_SHOW([Hardware detection module:],[$detection_module]) +GCRY_MSG_WRAP([Enabled cipher algorithms:],[$enabled_ciphers]) +GCRY_MSG_WRAP([Enabled digest algorithms:],[$enabled_digests]) +GCRY_MSG_WRAP([Enabled kdf algorithms: ],[$enabled_kdfs]) +GCRY_MSG_WRAP([Enabled pubkey algorithms:],[$enabled_pubkey_ciphers]) +GCRY_MSG_SHOW([Random number generator: ],[$random]) +GCRY_MSG_SHOW([Try using jitter entropy: ],[$jentsupport]) +GCRY_MSG_SHOW([Using linux capabilities: ],[$use_capabilities]) +GCRY_MSG_SHOW([Try using Padlock crypto: ],[$padlocksupport]) +GCRY_MSG_SHOW([Try using AES-NI crypto: ],[$aesnisupport]) +GCRY_MSG_SHOW([Try using Intel PCLMUL: ],[$pclmulsupport]) +GCRY_MSG_SHOW([Try using Intel SSE4.1: ],[$sse41support]) +GCRY_MSG_SHOW([Try using DRNG (RDRAND): ],[$drngsupport]) +GCRY_MSG_SHOW([Try using Intel AVX: ],[$avxsupport]) +GCRY_MSG_SHOW([Try using Intel AVX2: ],[$avx2support]) +GCRY_MSG_SHOW([Try using ARM NEON: ],[$neonsupport]) +GCRY_MSG_SHOW([Try using ARMv8 crypto: ],[$armcryptosupport]) +GCRY_MSG_SHOW([],[]) + +if test "x${gpg_config_script_warn}" != x; then +cat <<G10EOF + Mismatches between the target platform and the to + be used libraries have been been detected for: + ${gpg_config_script_warn} + Please check above for warning messages. + +G10EOF +fi + +if test "$gcry_cv_gcc_attribute_aligned" != "yes" ; then +cat <<G10EOF + Please not that your compiler does not support the GCC style + aligned attribute. Using this software may evoke bus errors. + +G10EOF +fi + +if test -n "$gpl"; then + echo "Please note that you are building a version of Libgcrypt with" + echo " $gpl" + echo "included. These parts are licensed under the GPL and thus the" + echo "use of this library has to comply with the conditions of the GPL." + echo "" +fi |