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authorTobias Brunner <tobias@strongswan.org>2017-09-18 17:57:05 +0200
committerTobias Brunner <tobias@strongswan.org>2017-09-19 13:24:43 +0200
commite0e43229736a84db5af6cb7af9cc2ae03da4c906 (patch)
treef496c2132e700b761b49571254292622a80254bd /configure.ac
parentd4593353c97347fc9505a5a4fe3cfb66b246874f (diff)
downloadstrongswan-e0e43229736a.tar.bz2
strongswan-e0e43229736a.tar.xz
configure: Detect type of length parameter for gperf generated function
Since 3.1 gperf uses size_t for the length parameter instead of an unsigned int.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac15
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])