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-rw-r--r--macros/gperf-check.m479
1 files changed, 79 insertions, 0 deletions
diff --git a/macros/gperf-check.m4 b/macros/gperf-check.m4
new file mode 100644
index 0000000000..1b73d3f19d
--- /dev/null
+++ b/macros/gperf-check.m4
@@ -0,0 +1,79 @@
+dnl
+dnl AC_PROG_GPERF (MINIMUM-VERSION)
+dnl
+dnl Check for availability of gperf.
+dnl Abort if not found or if current version is not up to par.
+dnl
+
+AC_DEFUN([AC_PROG_GPERF],[
+ AC_PATH_PROG(GPERF, gperf, no)
+ if test "$GPERF" = no; then
+ AC_MSG_ERROR(Could not find gperf)
+ fi
+ min_gperf_version=ifelse([$1], ,2.7,$1)
+ AC_MSG_CHECKING(for gperf - version >= $min_gperf_version)
+ gperf_major_version=`$GPERF --version | \
+ sed 's/GNU gperf \([[0-9]]*\).\([[0-9]]*\)/\1/'`
+ gperf_minor_version=`$GPERF --version | \
+ sed 's/GNU gperf \([[0-9]]*\).\([[0-9]]*\)/\2/'`
+ no_gperf=""
+dnl
+dnl Now check if the installed gperf is sufficiently new.
+dnl
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static char*
+my_strdup (char *str)
+{
+ char *new_str;
+
+ if (str)
+ {
+ new_str = malloc ((strlen (str) + 1) * sizeof(char));
+ strcpy (new_str, str);
+ }
+ else
+ new_str = NULL;
+
+ return new_str;
+}
+
+int
+main ()
+{
+ char *tmp_version;
+
+ int major;
+ int minor;
+
+ /* HP/UX 9 (%@#!) writes to sscanf strings */
+ tmp_version = my_strdup("$min_gperf_version");
+ if (sscanf(tmp_version, "%d.%d", &major, &minor) != 2) {
+ printf ("%s, bad version string\n", "$min_gperf_version");
+ exit (1);
+ }
+
+ if (($gperf_major_version > major) ||
+ (($gperf_major_version == major) && ($gperf_minor_version >= minor))) {
+ return 0;
+ } else {
+ printf ("\n");
+ printf ("*** An old version of gperf ($gperf_major_version.$gperf_minor_version) was found.\n");
+ printf ("*** You need a version of gperf newer than %d.%d.%d. The latest version of\n",
+ major, minor);
+ printf ("*** gperf is always available from ftp://ftp.gnu.org.\n");
+ printf ("***\n");
+ return 1;
+ }
+}
+],,no_gperf=yes,[/bin/true])
+ if test "x$no_gperf" = x ; then
+ AC_MSG_RESULT(yes)
+ else
+ AC_MSG_RESULT(no)
+ fi
+
+])