automake by default pops CPPFLAGS = @CPPFLAGS@ in Makefile.in If I configure with: ./configure LDFLAGS="-L/usr/local/lib -Wl,-R/usr/local/lib" CPPFLAGS=-I/usr/local/include Isn't it reasonable to expect for CPPFLAGS to be set in the Makefile? It appears blank in my case. Am I missing something, or does an unset CPPFLAGS in a Makefile imply that CPPFLAGS was empty when AC_OUTPUT was called? Cheers, Patrick (autoconf 2.59a, automake 1.8a) _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf