On Thu, 18 Jul 2013 06:08:27 -0600, Eric Blake wrote: > > That's probably because you put -lboost_system into LDFLAGS instead of > the proper LIBS (LDFLAGS is for -L/path, LIBS for -llib). I was actually unaware of the LIBS variable and was using only LDFLAGS for both specifying library paths and libraries. As a side note, apologies, Eric and List, for my duplicate queries (duplicate is 'Invocation of compiler by AC_LINK_IFELSE'). I'd sent my original query to autoconf@xxxxxxx (as per instructed on the autoconf page on the GNU website) but thought it hadn't gone through as lately I've been having internet connectivity issues; and so after slightly reworking my original email I re-posted via Gmane. Again, apologies and many thanks to all who've contributed enlightenment! _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf