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| author | Sven Eden <yamakuzure@gmx.net> | 2017-01-12 09:28:02 +0100 |
|---|---|---|
| committer | Sven Eden <yamakuzure@gmx.net> | 2017-03-14 10:22:32 +0100 |
| commit | 947a6c107a40f43b64adb3736a495e47caad7414 (patch) | |
| tree | 79bac6e0023cf3c7b4d34e6720d5d8983e1e8481 /configure.ac | |
| parent | 18a4f5b6f2977120281715a4b9dfee46a303436b (diff) | |
Fix lookup_errno by adding a gperf length parameter detection.
build-sys: add check for gperf lookup function signature (#5055)
gperf-3.1 generates lookup functions that take a size_t length
parameter instead of unsigned int. Test for this at configure time.
Fixes: https://github.com/systemd/systemd/issues/5039
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 8e3f7b3cd..24f4d0dd6 100644 --- a/configure.ac +++ b/configure.ac @@ -232,7 +232,29 @@ AC_CHECK_SIZEOF(rlim_t,,[ #include <sys/resource.h> ]) - # ------------------------------------------------------------------------------ +GPERF_TEST="$(echo foo,bar | ${GPERF} -L ANSI-C)" + +AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #include <string.h> + const char * in_word_set(const char *, size_t); + $GPERF_TEST] + )], + [GPERF_LEN_TYPE=size_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #include <string.h> + const char * in_word_set(const char *, unsigned); + $GPERF_TEST] + )], + [GPERF_LEN_TYPE=unsigned], + [AC_MSG_ERROR([** unable to determine gperf len type])] + )] +) + +AC_DEFINE_UNQUOTED([GPERF_LEN_TYPE], [$GPERF_LEN_TYPE], [gperf len type]) + +# ------------------------------------------------------------------------------ # we use python to build the man page index have_python=no AC_ARG_WITH([python], |