a project needs to satisfy both gcc 4.1.2 and gcc 4.7.3, but some options in the latter one(like -Wno-narrowing and Wno-unused-result) cannot be used in the former one. So I need to test the cutrrent gcc version and decide what can of option can be assigned to CFLAGS, sth like: if gcc version == 4.1.2 CFLAGS=.... else CFLAGS =..... how can I implement it in configure.ac? _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf