diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 400c33bf0..0cfe52484 100644 --- a/configure.ac +++ b/configure.ac @@ -378,6 +378,21 @@ AC_PATH_PROG([GPERF], [gperf], [], [$PATH:/bin:/usr/bin:/usr/local/bin]) AC_MSG_CHECKING([gperf version >= 3.0.0]) if test -x "$GPERF"; then if test "`$GPERF --version | $AWK -F' ' '/^GNU gperf/ { print $3 }' | $AWK -F. '{ print $1 }'`" -ge "3"; then + GPERF_OUTPUT="`echo foo | ${GPERF}`" + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <string.h> + const char *in_word_set(const char*, size_t); $GPERF_OUTPUT]])], + [GPERF_LEN_TYPE=size_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <string.h> + const char *in_word_set(const char*, unsigned); $GPERF_OUTPUT]])], + [GPERF_LEN_TYPE=unsigned], + [AC_MSG_ERROR([unable to determine gperf len type])] + )] + ) + AC_DEFINE_UNQUOTED([GPERF_LEN_TYPE], [$GPERF_LEN_TYPE], [gperf len type]) AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) |