Hello, I am using AC_LANG_PROGRAM wrapped inside AC_LINK_IFELSE to test for libboost_system and it invokes gcc/g++ in the following way: configure:3975: g++ -o conftest -g -O2 -lboost_system conftest.cpp The above results in a few errors and doesn't link even though the library in question is present in the system. This is because the source file should be at the front in the call to g++, e.g.: g++ conftest.cpp -o conftest -g -O2 -lboost_system What can be done to overcome this limitation? Can the parameter order be customized somehow or perhaps some other macro be used? Miguel _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf