Hi Alan,
This issue is not yet resolved, in the moment this cross-compiler issue looks like a regression. But I have tried your follow-up patches, and they make sense for me: http://gcc.gnu.org/ml/gcc-patches/2013-12/msg01149.html http://gcc.gnu.org/ml/gcc-patches/2013-12/msg01544.html How can we proceed? Regards Bernd. >> >> On Thu, Dec 19, 2013 at 11:50:02AM +0100, Bernd Edlinger wrote: >>> Isn't the actual invocation of the build-g++ also including >>> /sysroot_for_host/include >>> in that case? Why doesn't this cause problems then? >> >> Yes, and that causes failures too. BUILD_CPPFLAGS is the culprit. >> See http://gcc.gnu.org/ml/gcc-patches/2013-12/msg01149.html >> >> -- >> Alan Modra >> Australia Development Lab, IBM > > Ok, now I understand: > The change with GMPINC="" is just incomplete, without the other patch. > > When I apply the other patch too, I get this (obviously cleaner) build-g++ > invocations: > g++ -c -DIN_GCC -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.9-20131215/gcc > -I../../gcc-4.9-20131215/gcc/build -I../../gcc-4.9-20131215/gcc/../include > -I../../gcc-4.9-20131215/gcc/../libcpp/include \ > -o build/gengtype.o ../../gcc-4.9-20131215/gcc/gengtype.c > flex -ogengtype-lex.c ../../gcc-4.9-20131215/gcc/gengtype-lex.l && { \ > echo '#include "bconfig.h"'> gengtype-lex.c.tmp; \ > cat gengtype-lex.c>> gengtype-lex.c.tmp; \ > mv gengtype-lex.c.tmp gengtype-lex.c; \ > } > g++ -c -DIN_GCC -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.9-20131215/gcc > -I../../gcc-4.9-20131215/gcc/build -I../../gcc-4.9-20131215/gcc/../include > -I../../gcc-4.9-20131215/gcc/../libcpp/include \ > -o build/gengtype-lex.o gengtype-lex.c > g++ -c -DIN_GCC -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.9-20131215/gcc > -I../../gcc-4.9-20131215/gcc/build -I../../gcc-4.9-20131215/gcc/../include > -I../../gcc-4.9-20131215/gcc/../libcpp/include \ > -o build/gengtype-parse.o > ../../gcc-4.9-20131215/gcc/gengtype-parse.c > g++ -c -DIN_GCC -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.9-20131215/gcc > -I../../gcc-4.9-20131215/gcc/build -I../../gcc-4.9-20131215/gcc/../include > -I../../gcc-4.9-20131215/gcc/../libcpp/include \ > -o build/gengtype-state.o > ../../gcc-4.9-20131215/gcc/gengtype-state.c > > > Regards > Bernd.
