| 1 | dnl |
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| 2 | dnl AC_PROG_GPERF (MINIMUM-VERSION) |
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| 3 | dnl |
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| 4 | dnl Check for availability of gperf. |
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| 5 | dnl Abort if not found or if current version is not up to par. |
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| 6 | dnl |
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| 7 | |
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| 8 | AC_DEFUN([AC_PROG_GPERF],[ |
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| 9 | AC_PATH_PROG(GPERF, gperf, no) |
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| 10 | if test "$GPERF" = no; then |
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| 11 | AC_MSG_ERROR(Could not find gperf) |
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| 12 | fi |
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| 13 | min_gperf_version=ifelse([$1], ,2.7,$1) |
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| 14 | AC_MSG_CHECKING(for gperf - version >= $min_gperf_version) |
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| 15 | gperf_major_version=`$GPERF --version | \ |
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| 16 | sed 's/GNU gperf \([[0-9]]*\).\([[0-9]]*\)/\1/'` |
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| 17 | gperf_minor_version=`$GPERF --version | \ |
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| 18 | sed 's/GNU gperf \([[0-9]]*\).\([[0-9]]*\)/\2/'` |
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| 19 | no_gperf="" |
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| 20 | dnl |
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| 21 | dnl Now check if the installed gperf is sufficiently new. |
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| 22 | dnl |
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| 23 | AC_TRY_RUN([ |
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| 24 | #include <stdio.h> |
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| 25 | #include <stdlib.h> |
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| 26 | #include <string.h> |
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| 27 | |
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| 28 | static char* |
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| 29 | my_strdup (char *str) |
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| 30 | { |
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| 31 | char *new_str; |
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| 32 | |
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| 33 | if (str) |
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| 34 | { |
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| 35 | new_str = malloc ((strlen (str) + 1) * sizeof(char)); |
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| 36 | strcpy (new_str, str); |
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| 37 | } |
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| 38 | else |
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| 39 | new_str = NULL; |
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| 40 | |
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| 41 | return new_str; |
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| 42 | } |
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| 43 | |
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| 44 | int |
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| 45 | main () |
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| 46 | { |
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| 47 | char *tmp_version; |
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| 48 | |
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| 49 | int major; |
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| 50 | int minor; |
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| 51 | |
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| 52 | /* HP/UX 9 (%@#!) writes to sscanf strings */ |
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| 53 | tmp_version = my_strdup("$min_gperf_version"); |
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| 54 | if (sscanf(tmp_version, "%d.%d", &major, &minor) != 2) { |
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| 55 | printf ("%s, bad version string\n", "$min_gperf_version"); |
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| 56 | return 1; |
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| 57 | } |
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| 58 | |
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| 59 | if (($gperf_major_version > major) || |
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| 60 | (($gperf_major_version == major) && ($gperf_minor_version >= minor))) { |
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| 61 | return 0; |
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| 62 | } else { |
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| 63 | printf ("\n"); |
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| 64 | printf ("*** An old version of gperf ($gperf_major_version.$gperf_minor_version) was found.\n"); |
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| 65 | printf ("*** You need a version of gperf newer than %d.%d.%d. The latest version of\n", |
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| 66 | major, minor); |
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| 67 | printf ("*** gperf is always available from ftp://ftp.gnu.org.\n"); |
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| 68 | printf ("***\n"); |
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| 69 | return 1; |
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| 70 | } |
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| 71 | } |
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| 72 | ],,no_gperf=yes,[/bin/true]) |
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| 73 | if test "x$no_gperf" = x ; then |
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| 74 | AC_MSG_RESULT(yes) |
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| 75 | else |
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| 76 | AC_MSG_RESULT(no) |
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| 77 | fi |
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| 78 | |
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| 79 | ]) |
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