* README: Updated.
[gnupg.git] / acinclude.m4
index 4237738..0235634 100644 (file)
@@ -636,3 +636,59 @@ AC_DEFUN(AM_PATH_OPENSC,
 ])
 
 
+dnl AM_PATH_GPG_ERROR([MINIMUM-VERSION,
+dnl                   [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
+dnl Test for libgpg-error and define GPG_ERROR_CFLAGS and GPG_ERROR_LIBS
+dnl
+AC_DEFUN(AM_PATH_GPG_ERROR,
+[ AC_ARG_WITH(gpg-error-prefix,
+            AC_HELP_STRING([--with-gpg-error-prefix=PFX],
+                           [prefix where GPG Error is installed (optional)]),
+     gpg_error_config_prefix="$withval", gpg_error_config_prefix="")
+  if test x$gpg_error_config_prefix != x ; then
+     gpg_error_config_args="$gpg_error_config_args --prefix=$gpg_error_config_prefix"
+     if test x${GPG_ERROR_CONFIG+set} != xset ; then
+        GPG_ERROR_CONFIG=$gpg_error_config_prefix/bin/gpg-error-config
+     fi
+  fi
+
+  AC_PATH_PROG(GPG_ERROR_CONFIG, gpg-error-config, no)
+  min_gpg_error_version=ifelse([$1], ,0.0,$1)
+  AC_MSG_CHECKING(for GPG Error - version >= $min_gpg_error_version)
+  ok=no
+  if test "$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/'`
+    gpg_error_config_version=`$GPG_ERROR_CONFIG $gpg_error_config_args --version`
+    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
+  if test $ok = yes; then
+    GPG_ERROR_CFLAGS=`$GPG_ERROR_CONFIG $gpg_error_config_args --cflags`
+    GPG_ERROR_LIBS=`$GPG_ERROR_CONFIG $gpg_error_config_args --libs`
+    AC_MSG_RESULT(yes)
+    ifelse([$2], , :, [$2])
+  else
+    GPG_ERROR_CFLAGS=""
+    GPG_ERROR_LIBS=""
+    AC_MSG_RESULT(no)
+    ifelse([$3], , :, [$3])
+  fi
+  AC_SUBST(GPG_ERROR_CFLAGS)
+  AC_SUBST(GPG_ERROR_LIBS)
+])
+
+