* DJ Delorie wrote on Thu, Feb 01, 2007 at 03:25:36AM CET: > > > Do you think that is feasible for GCC? I know it far too little to > > be able to judge. > > No, sorry. In gcc, binutils, gdb, newlib, et al; there is a toplevel > configure and Makefile. Configure programatically determines which of > the available source directories will participate in the build, and > creates a suitable Makefile. The Makefile calls the sub-configures in > turn. They share config.cache, because it saves a lot of time. > > So, yes, configure is getting called a lot, from different modules, at > different times. Would you please point me to one bug report where the issue actually was only changed whitespace in the precious variables, or, even better, show me how to reproduce the issue you observe (with a combined, up to date tree)? I found these bug reports only (and some others), but none fit the issue you reported: <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18222> fixed <http://gcc.gnu.org/ml/gcc/2004-01/msg02101.html> genuine build bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25470> non-whitespace difference in precious variable; plus build system bug Here's what I tried so far, without a bug, on i686-pc-linux-gnu: CFLAGS=' -Dfoobar -Dfoobaz="a" ' \ ../combined/configure --disable-multilib --enable-languages=c,c++,objc make find ../combined -name configure | xargs touch make Presumably your failure is triggered by some other rebuild mechanism. Thanks, Ralf _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
