This patch is needed to fix a C99 compatibility issue in the configure script. Future compilers are likely to reject implicit function declarations by default, causing these configure checks to fail always.

Related to:

https://fedoraproject.org/wiki/Changes/PortingToModernC https://fedoraproject.org/wiki/Toolchain/PortingToModernC

diff --git a/configure b/configure index a0bb579d62bd6658..4ea776e4318a39e7 100755 --- a/configure +++ b/configure @@ -5079,9 +5079,9 @@ else int main() { $type dummy; FILE *f=fopen("conftestval", "w"); - if (!f) exit(1); + if (!f) return 1; fprintf(f, "%d\n", sizeof($1)); - exit(0); + return 0; }

_ACEOF diff --git a/configure.ac b/configure.ac index 886a23a353c01856..e9ef7f57d002c54e 100644 --- a/configure.ac +++ b/configure.ac @@ -111,9 +111,9 @@ for type in u_int8_t u_int16_t u_int32_t ; do int main() { $type dummy; FILE *f=fopen("conftestval", "w"); - if (!f) exit(1); + if (!f) return 1; fprintf(f, "%d\n", sizeof($1)); - exit(0); + return 0; } ])], [ x=`cat conftestval`

Thanks, Florian