Hello Alex, * Alex Farber wrote on Wed, May 26, 2010 at 07:24:14AM CEST: > I want to add --enable-debug switch to my configure script, which replaces > default "-g O3" compiler options with "-g3 -O0". My attempt is obviously > incorrect: > > AC_ARG_ENABLE( debug, > [ --enable-debug, Enable debug build], > [ CXXFLAGS="${CXXFLAGS} -g3 -O0"] ) > > This gives compiler command line: "-g O3 g3 -O0" instead of desired "-g3 > -O0" > Also, automake manual doesn't recommend to touch CXXFLAGS variable, leaving > it completely to user. What is correct way to do this? We should have a FAQ entry for this, it comes up every other month. Any takers? Last instance was this (although the FAQ entry should probably be a bit more verbose): http://thread.gmane.org/gmane.comp.sysutils.autoconf.general/12996/focus=12998 Hope that helps. Cheers, Ralf _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf