summary refs log tree commit diff stats
path: root/libotr/libgpg-error-1.42/src/gpg-error.m4
blob: d910754e8d0db4e7138bb695b773988a15f9e0eb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
# gpg-error.m4 - autoconf macro to detect libgpg-error.
# Copyright (C) 2002, 2003, 2004, 2011, 2014, 2018, 2020, 2021
#               g10 Code GmbH
#
# This file is free software; as a special exception the author gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
#
# This file is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Last-changed: 2021-02-16


dnl AM_PATH_GPG_ERROR([MINIMUM-VERSION,
dnl                   [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
dnl
dnl Test for libgpg-error and define GPG_ERROR_CFLAGS, GPG_ERROR_LIBS,
dnl GPG_ERROR_MT_CFLAGS, and GPG_ERROR_MT_LIBS.  The _MT_ variants are
dnl used for programs requireing real multi thread support.
dnl
dnl If a prefix option is not used, the config script is first
dnl searched in $SYSROOT/bin and then along $PATH.  If the used
dnl config script does not match the host specification the script
dnl is added to the gpg_config_script_warn variable.
dnl
AC_DEFUN([AM_PATH_GPG_ERROR],
[ AC_REQUIRE([AC_CANONICAL_HOST])
  gpg_error_config_prefix=""
  dnl --with-libgpg-error-prefix=PFX is the preferred name for this option,
  dnl since that is consistent with how our three siblings use the directory/
  dnl package name in --with-$dir_name-prefix=PFX.
  AC_ARG_WITH(libgpg-error-prefix,
              AS_HELP_STRING([--with-libgpg-error-prefix=PFX],
                             [prefix where GPG Error is installed (optional)]),
              [gpg_error_config_prefix="$withval"])

  dnl Accept --with-gpg-error-prefix and make it work the same as
  dnl --with-libgpg-error-prefix above, for backwards compatibility,
  dnl but do not document this old, inconsistently-named option.
  AC_ARG_WITH(gpg-error-prefix,,
              [gpg_error_config_prefix="$withval"])

  if test x"${GPG_ERROR_CONFIG}" = x ; then
     if test x"${gpg_error_config_prefix}" != x ; then
        GPG_ERROR_CONFIG="${gpg_error_config_prefix}/bin/gpg-error-config"
     else
       case "${SYSROOT}" in
         /*)
           if test -x "${SYSROOT}/bin/gpg-error-config" ; then
             GPG_ERROR_CONFIG="${SYSROOT}/bin/gpg-error-config"
           fi
           ;;
         '')
           ;;
          *)
           AC_MSG_WARN([Ignoring \$SYSROOT as it is not an absolute path.])
           ;;
       esac
     fi
  fi

  AC_PATH_PROG(GPG_ERROR_CONFIG, gpg-error-config, no)
  min_gpg_error_version=ifelse([$1], ,1.33,$1)
  ok=no

  AC_PATH_PROG(GPGRT_CONFIG, gpgrt-config, no)
  if test "$GPGRT_CONFIG" != "no"; then
    # Determine gpgrt_libdir
    #
    # Get the prefix of gpgrt-config assuming it's something like:
    #   <PREFIX>/bin/gpgrt-config
    gpgrt_prefix=${GPGRT_CONFIG%/*/*}
    possible_libdir1=${gpgrt_prefix}/lib
    # Determine by using system libdir-format with CC, it's like:
    #   Normal style: /usr/lib
    #   GNU cross style: /usr/<triplet>/lib
    #   Debian style: /usr/lib/<multiarch-name>
    #   Fedora/openSUSE style: /usr/lib, /usr/lib32 or /usr/lib64
    # It is assumed that CC is specified to the one of host on cross build.
    if libdir_candidates=$(${CC:-cc} -print-search-dirs | \
          sed -n -e "/^libraries/{s/libraries: =//;s/:/\n/gp}"); then
      # From the output of -print-search-dirs, select valid pkgconfig dirs.
      libdir_candidates=$(for dir in $libdir_candidates; do
        if p=$(cd $dir 2>/dev/null && pwd); then
          test -d "$p/pkgconfig" && echo $p;
        fi
      done)

      for possible_libdir0 in $libdir_candidates; do
        # possible_libdir0:
        #   Fallback candidate, the one of system-installed (by $CC)
        #   (/usr/<triplet>/lib, /usr/lib/<multiarch-name> or /usr/lib32)
        # possible_libdir1:
        #   Another candidate, user-locally-installed
        #   (<gpgrt_prefix>/lib)
        # possible_libdir2
        #   Most preferred
        #   (<gpgrt_prefix>/<triplet>/lib,
        #    <gpgrt_prefix>/lib/<multiarch-name> or <gpgrt_prefix>/lib32)
        if test "${possible_libdir0##*/}" = "lib"; then
          possible_prefix0=${possible_libdir0%/lib}
          possible_prefix0_triplet=${possible_prefix0##*/}
          if test -z "$possible_prefix0_triplet"; then
            continue
          fi
          possible_libdir2=${gpgrt_prefix}/$possible_prefix0_triplet/lib
        else
          possible_prefix0=${possible_libdir0%%/lib*}
          possible_libdir2=${gpgrt_prefix}${possible_libdir0#$possible_prefix0}
        fi
        if test -f ${possible_libdir2}/pkgconfig/gpg-error.pc; then
          gpgrt_libdir=${possible_libdir2}
        elif test -f ${possible_libdir1}/pkgconfig/gpg-error.pc; then
          gpgrt_libdir=${possible_libdir1}
        elif test -f ${possible_libdir0}/pkgconfig/gpg-error.pc; then
          gpgrt_libdir=${possible_libdir0}
        fi
        if test -n "$gpgrt_libdir"; then break; fi
      done
    else
      # When we cannot determine system libdir-format, use this:
      gpgrt_libdir=${possible_libdir1}
    fi
  else
    unset GPGRT_CONFIG
  fi

  if test -n "$gpgrt_libdir"; then
    GPGRT_CONFIG="$GPGRT_CONFIG --libdir=$gpgrt_libdir"
    if $GPGRT_CONFIG gpg-error >/dev/null 2>&1; then
      GPG_ERROR_CONFIG="$GPGRT_CONFIG gpg-error"
      AC_MSG_NOTICE([Use gpgrt-config with $gpgrt_libdir as gpg-error-config])
      gpg_error_config_version=`$GPG_ERROR_CONFIG --modversion`
    else
      unset GPGRT_CONFIG
    fi
  elif test "$GPG_ERROR_CONFIG" != "no"; then
    gpg_error_config_version=`$GPG_ERROR_CONFIG --version`
  fi
  if test "$GPG_ERROR_CONFIG" != "no"; then
    req_major=`echo $min_gpg_error_version | \
               sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
    req_minor=`echo $min_gpg_error_version | \
               sed 's/\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
    major=`echo $gpg_error_config_version | \
               sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
    minor=`echo $gpg_error_config_version | \
               sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
    if test "$major" -gt "$req_major"; then
        ok=yes
    else
        if test "$major" -eq "$req_major"; then
            if test "$minor" -ge "$req_minor"; then
               ok=yes
            fi
        fi
    fi
  fi
  AC_MSG_CHECKING(for GPG Error - version >= $min_gpg_error_version)
  if test $ok = yes; then
    GPG_ERROR_CFLAGS=`$GPG_ERROR_CONFIG --cflags`
    GPG_ERROR_LIBS=`$GPG_ERROR_CONFIG --libs`
    if test -z "$GPGRT_CONFIG"; then
      GPG_ERROR_MT_CFLAGS=`$GPG_ERROR_CONFIG --mt --cflags 2>/dev/null`
      GPG_ERROR_MT_LIBS=`$GPG_ERROR_CONFIG --mt --libs 2>/dev/null`
    else
      GPG_ERROR_MT_CFLAGS=`$GPG_ERROR_CONFIG --variable=mtcflags 2>/dev/null`
      GPG_ERROR_MT_CFLAGS="$GPG_ERROR_CFLAGS${GPG_ERROR_CFLAGS:+ }$GPG_ERROR_MT_CFLAGS"
      GPG_ERROR_MT_LIBS=`$GPG_ERROR_CONFIG --variable=mtlibs 2>/dev/null`
      GPG_ERROR_MT_LIBS="$GPG_ERROR_LIBS${GPG_ERROR_LIBS:+ }$GPG_ERROR_MT_LIBS"
    fi
    AC_MSG_RESULT([yes ($gpg_error_config_version)])
    ifelse([$2], , :, [$2])
    if test -z "$GPGRT_CONFIG"; then
      gpg_error_config_host=`$GPG_ERROR_CONFIG --host 2>/dev/null || echo none`
    else
      gpg_error_config_host=`$GPG_ERROR_CONFIG --variable=host 2>/dev/null || echo none`
    fi
    if test x"$gpg_error_config_host" != xnone ; then
      if test x"$gpg_error_config_host" != x"$host" ; then
  AC_MSG_WARN([[
***
*** The config script "$GPG_ERROR_CONFIG" was
*** built for $gpg_error_config_host and thus may not match the
*** used host $host.
*** You may want to use the configure option --with-libgpg-error-prefix
*** to specify a matching config script or use \$SYSROOT.
***]])
        gpg_config_script_warn="$gpg_config_script_warn libgpg-error"
      fi
    fi
  else
    GPG_ERROR_CFLAGS=""
    GPG_ERROR_LIBS=""
    GPG_ERROR_MT_CFLAGS=""
    GPG_ERROR_MT_LIBS=""
    AC_MSG_RESULT(no)
    ifelse([$3], , :, [$3])
  fi
  AC_SUBST(GPG_ERROR_CFLAGS)
  AC_SUBST(GPG_ERROR_LIBS)
  AC_SUBST(GPG_ERROR_MT_CFLAGS)
  AC_SUBST(GPG_ERROR_MT_LIBS)
])