[Bug c/42047] New: Failed build genmodes

["monaka at monami-software dot com" <gcc-bugzilla at gcc dot gnu dot org>]

I failed to build gcc with configuration follows:

../gcc/configure --target=sh-elf --host=i386-pc-mingw32
--build=i686-apple-darwin10 --enable-languages=c --with-gmp=/opt/MinGW
--with-mpfr=/opt/MinGW


I think genmodes should be built on build environment, but there seems it was
built with include pathes for "host". 

gcc -c -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE   -DGENERATOR_FILE -I. -Ibuild
-I../../gcc/gcc -I../../gcc/gcc/build -I../../gcc/gcc/../include -I./../intl
-I../../gcc/gcc/../libcpp/include -I/opt/MinGW/include -I/opt/MinGW/include
-I../../gcc/gcc/../libdecnumber -I../../gcc/gcc/../libdecnumber/dpd
-I../libdecnumber     \
                -o build/genmodes.o ../../gcc/gcc/genmodes.c
In file included from ../../gcc/gcc/system.h:42,
                 from ../../gcc/gcc/genmodes.c:22:

I think this issue is caused by "BUILD_CPPFLAGS=$(ALL_CPPFLAGS)" in Makefile.in


I got sources from git://git.infradead.org/gcc.git, not official svn. But this
issue will be occured with official releases.


-- 
           Summary: Failed build genmodes
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: monaka at monami-software dot com
 GCC build triplet: i686-apple-darwin10
  GCC host triplet: i386-pc-mingw32
GCC target triplet: sh-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42047