1 files changed, 42 insertions, 0 deletions
diff --git a/contrib/amd/m4/macros/check_gnu_getopt.m4 b/contrib/amd/m4/macros/check_gnu_getopt.m4
new file mode 100644
index 0000000..be7be62
--- /dev/null
+++ b/contrib/amd/m4/macros/check_gnu_getopt.m4
@@ -0,0 +1,42 @@
+dnl ######################################################################
+dnl Do we have a GNUish getopt
+AC_DEFUN(AMU_CHECK_GNU_GETOPT,
+[
+AC_CACHE_CHECK([for GNU getopt], ac_cv_sys_gnu_getopt, [
+AC_TRY_RUN([
+#include <stdio.h>
+#include <unistd.h>
+int main()
+{
+   int argc = 3;
+   char *argv[] = { "actest", "arg", "-x", NULL };
+   int c;
+   FILE* rf;
+   int isGNU = 0;
+
+   rf = fopen("conftestresult", "w");
+   if (rf == NULL) exit(1);
+
+   while ( (c = getopt(argc, argv, "x")) != -1 ) {
+       switch ( c ) {
+          case 'x':
+	     isGNU=1;
+             break;
+          default:
+             exit(1);
+       }
+   }
+   fprintf(rf, isGNU ? "yes" : "no");
+   exit(0);
+}
+],[
+ac_cv_sys_gnu_getopt="`cat conftestresult`"
+],[
+AC_MSG_ERROR(could not test for getopt())
+])
+])
+if test "$ac_cv_sys_gnu_getopt" = "yes"
+then
+    AC_DEFINE(HAVE_GNU_GETOPT)
+fi
+])