On Thu, 2007-02-01 at 21:29 -0500, DJ Delorie wrote: > > I am observing the "CFLAGS" issue in newlib-1.15.0 with gcc < 4.2, but I > > am not observing this issue with gcc >= 4.2. > > > > So, I am suspecting the "CFLAGS" leak in GCC's toplevel Makefile.in > > triggering the ".. change since previous run", might have been fixed in > > GCC since then. > > Our tree is based on gcc 4.2, though. And we appear to have the > separate cache patch. What platform are you testing with? Cross building Fedora -> various rtems targets toolchains, consisting of gcc-core/gcc-g++/newlib, building one-tree style. > We see the > bug mostly on Solaris and Cygwin. Hmm, ... To work around this issue with gcc-4.1.x (I do not use it for gcc-4.0.x nor gcc-4.2), I am using this hack below. diff -uNr gcc-4.1.1.orig/Makefile.in gcc-4.1.1/Makefile.in --- gcc-4.1.1.orig/Makefile.in 2006-04-04 23:03:05.000000000 +0200 +++ gcc-4.1.1/Makefile.in 2007-01-31 09:37:58.000000000 +0100 @@ -329,9 +329,9 @@ # CFLAGS will be just -g. We want to ensure that TARGET libraries # (which we know are built with gcc) are built with optimizations so # prepend -O2 when setting CFLAGS_FOR_TARGET. -CFLAGS_FOR_TARGET = -O2 $(CFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) +CFLAGS_FOR_TARGET = $(strip -O2 $(CFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET)) SYSROOT_CFLAGS_FOR_TARGET = @SYSROOT_CFLAGS_FOR_TARGET@ -CXXFLAGS_FOR_TARGET = $(CXXFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) +CXXFLAGS_FOR_TARGET = $(strip $(CXXFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET)) LIBCFLAGS_FOR_TARGET = $(CFLAGS_FOR_TARGET) LIBCXXFLAGS_FOR_TARGET = $(CXXFLAGS_FOR_TARGET) -fno-implicit-templates LDFLAGS_FOR_TARGET = Ralf _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
