From 5263887ac3326e9428dd5ee765ef45b4fb5d818b Mon Sep 17 00:00:00 2001
From: TingPing <tingping@tingping.se>
Date: Wed, 22 Apr 2015 22:41:02 -0400
Subject: configure: Simplify perl tests

---
 m4/ax_perl_ext_flags.m4 | 116 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 m4/ax_perl_ext_flags.m4

(limited to 'm4/ax_perl_ext_flags.m4')

diff --git a/m4/ax_perl_ext_flags.m4 b/m4/ax_perl_ext_flags.m4
new file mode 100644
index 00000000..03f16435
--- /dev/null
+++ b/m4/ax_perl_ext_flags.m4
@@ -0,0 +1,116 @@
+# ===========================================================================
+#     http://www.gnu.org/software/autoconf-archive/ax_perl_ext_flags.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PERL_EXT_FLAGS([CFLAGS-VARIABLE], [LDFLAGS-VARIABLE], [EXTRA-MODULES])
+#   AX_PERL_EXT_CFLAGS([CFLAGS-VARIABLE])
+#   AX_PERL_EXT_LDFLAGS([LDFLAGS-VARIABLE], [EXTRA-MODULES])
+#
+# DESCRIPTION
+#
+#   Fetches the linker flags and C compiler flags for compiling and linking
+#   programs that embed a Perl interpreter. If the EXTRA-MODULES argument is
+#   submitted, it is a space separated list of extra modules to link. The
+#   flags will be stored in the provided variables.
+#
+#   Examples:
+#
+#     AX_PERL_EXT_FLAGS([PERLXS_CFLAGS], [PERLXS_LDFLAGS])
+#     AC_SUBST([PERLXS_CFLAGS])
+#     AC_SUBST([PERLXS_LDFLAGS])
+#
+#     AX_PERL_EXT_CFLAGS([PERLXS_CFLAGS])
+#     AC_SUBST([PERLXS_CFLAGS])
+#
+#     AX_PERL_EXT_LDFLAGS([PERLXS_LDFLAGS], [-std Socket])
+#
+# LICENSE
+#
+#   Copyright (c) 2009 Mats Kindahl of Sun Microsystems <mats@sun.com>
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions are
+#   met:
+#
+#   1. Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+#
+#   2. Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+#
+#   3. The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+#   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+#   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+#   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+#   DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+#   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+#   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+#   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+#   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+#   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+#   ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+#   POSSIBILITY OF SUCH DAMAGE.
+
+#serial 5
+
+AC_DEFUN([AX_PERL_EXT_CFLAGS],
+[AC_CHECK_PROG(PERL,perl,perl)
+ _AX_PERL_EXT_MODULE_CHECK([ExtUtils::Embed], [have_embed=yes],
+                           [have_embed=no])
+ AS_IF([test $have_embed = no],
+       AC_MSG_ERROR([Require ExtUtils::Embed to proceed]))
+ _AX_PERL_EXT_EMBED_CHECK([$1],[ccopts])
+])
+
+
+AC_DEFUN([AX_PERL_EXT_LDFLAGS],
+[AC_CHECK_PROG(PERL,perl,perl)
+ _AX_PERL_EXT_MODULE_CHECK([ExtUtils::Embed], [have_embed=yes],
+                           [have_embed=no])
+ AS_IF([test $have_embed = no],
+       AC_MSG_ERROR([Require ExtUtils::Embed to proceed]))
+ _AX_PERL_EXT_EMBED_CHECK([$1],[ldopts],[$2])
+])
+
+
+AC_DEFUN([AX_PERL_EXT_FLAGS],
+[AC_CHECK_PROG(PERL,perl,perl)
+ _AX_PERL_EXT_MODULE_CHECK([ExtUtils::Embed], [have_embed=yes],
+                           [have_embed=no])
+ AS_IF([test $have_embed = no],
+       AC_MSG_ERROR([Require ExtUtils::Embed to proceed]))
+ _AX_PERL_EXT_EMBED_CHECK([$1],[ccopts])
+ _AX_PERL_EXT_EMBED_CHECK([$2],[ldopts],[$3])
+])
+
+
+dnl _AX_PERL_EXT_MODULE_CHECK(MODULE-NAME, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
+dnl
+dnl Check for the existance of the perl module given by MODULE-NAME.
+dnl
+AC_DEFUN([_AX_PERL_EXT_MODULE_CHECK],
+[AC_MSG_CHECKING([for perl module $1])
+ $PERL "-M$1" -e exit > /dev/null 2>&1
+ AS_IF([test $? -eq 0],
+ [AC_MSG_RESULT(yes)
+  $2],
+ [AC_MSG_RESULT(no)
+  $3])
+])
+
+dnl _AX_PERL_EXT_EMBED_CHECK(VARIABLE, COMMAND, [EXTRA-FLAGS]) Use
+dnl
+dnl ExtUtils::Embed fetch flags for embedding Perl in a C/C++
+dnl application
+dnl
+AC_DEFUN([_AX_PERL_EXT_EMBED_CHECK],
+[AC_MSG_CHECKING([for perl $2 embed flags])
+ ax_c_perlxs_extras="$3"
+ $1=`$PERL -MExtUtils::Embed -e $2 ${ax_c_perlxs_extras:+"-- $3"}`
+ AC_MSG_RESULT($$1)
+])
-- 
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