diff options
Diffstat (limited to 'macros')
| -rw-r--r-- | macros/gperf-check.m4 | 79 |
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 + +]) |