Hi Steffen, > > Could it be that you have multiple config.h files and the wrong is used? > That was it - basically, some of the project members like to build with CMake instead of autotools, and a stray "config.h" got created and saved in a location that mislead the compiler. Thanks for the help! David Bruce _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf