Ben Pfaff <blp@xxxxxxxxxxxxxxx> writes: > AC_COMPILE_IFELSE generates a test that only checks the exit status > of the compiler command. But this is not sufficient: My own feeling is that if the compiler exits with a nonzero status and produces working object code, then it succeeded, regardless of what diagnostics it produced. Hmm, are you using #error to detect whether some preprocessor problem exists? If so, then you should redo your test programs so that they look something like this instead. That should fix the problem. #ifdef FOO error: "FOO" was defined. #endif _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf