Autoconf/automake macro for the Gedcom parser library.

[gedcom-parse.git] / m4 / gedcom.m4

diff --git a/m4/gedcom.m4 b/m4/gedcom.m4
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+dnl Autoconf/automake macros for the Gedcom parser library
+dnl Peter Verthez
+dnl 
+dnl $Id$
+dnl $Name$
+
+dnl AM_LIB_GEDCOM_PARSER([MINIMUM-MAJOR-VERSION, [MINIMUM-MINOR-VERSION]])
+dnl Test for the availability of the Gedcom parser library, and check whether
+dnl the required minimum version is available (parameters default to 0 if
+dnl not given
+AC_DEFUN(AM_LIB_GEDCOM_PARSER, [
+  AC_CHECK_LIB(gedcom, gedcom_parse_file,,
+     AC_MSG_ERROR([Cannot find libgedcom: Please install gedcom-parse]))
+  major_version=ifelse([$1], ,0,$1)
+  minor_version=ifelse([$2], ,0,$2)
+  AC_MSG_CHECKING(for libgedcom version >= $major_version.$minor_version)
+  AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <gedcom.h>
+int
+main()
+{
+if (GEDCOM_PARSE_VERSION >= $major_version * 1000 + $minor_version) exit(0);
+exit(1);
+}],
+ac_gedcom_version_ok='yes',
+ac_gedcom_version_ok='no',
+ac_gedcom_version_ok='no')
+if test "$ac_gedcom_version_ok" = 'yes' ; then
+  AC_MSG_RESULT(ok)
+else
+  AC_MSG_RESULT(not ok)
+  AC_MSG_ERROR(You need at least version $major_version.$minor_version of gedcom-parse)
+fi
+])