[Bug bootstrap/25715] New: lack of gcc target headers inclusion.

["pluto at agmk dot net" <gcc-bugzilla at gcc dot gnu dot org>]

cross-gcc configured with '--without-headers --disable-threads' doesn't build.

(...)
/home/users/pluto/rpm/BUILD/gcc-4.1-20060106/obj-ppc64-pld-linux/./gcc/xgcc
-B/home/users/pluto/rpm/BUILD/gcc-4.1-20060106/obj-ppc64-pld-linux/./gcc/
-B/usr/ppc64-pld-linux/bin/ -B/usr/ppc64-pld-linux/lib/
-isystem /usr/ppc64-pld-linux/include
-isystem /usr/ppc64-pld-linux/sys-include -O2  -mno-minimal-toc -fPIC
-specs=bispecs -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc
-I. -I. -I../../gcc -I../../gcc/. -I../../gcc/../include
-I../../gcc/../libcpp/include  -fPIC -mstrict-align -DL_muldi3
-c ../../gcc/libgcc2.c -o libgcc/./_muldi3.o
In file included from ../../gcc/libgcc2.c:43:
../../gcc/libgcc2.h:214:3: error: #error "expand the table"
../../gcc/libgcc2.c: In function '__mulhi3':
../../gcc/libgcc2.c:514: error: 'BITS_PER_UNIT' undeclared
                                (first use in this function)
../../gcc/libgcc2.c:514: error: (Each undeclared identifier
                                 is reported only once
../../gcc/libgcc2.c:514: error: for each function it appears in.)


hack / workaround:

--- gcc-4.1-20060106/gcc/mkconfig.sh
+++ gcc-4.1-20060106/gcc/mkconfig.sh
@@ -64,7 +64,7 @@
        ;;
     esac
     if [ $# -ge 1 ]; then
-       echo '#ifdef IN_GCC' >> ${output}T
+       echo '#if defined(IN_GCC) || defined(IN_LIBGCC2)' >> ${output}T
        for file in "$@"; do
            echo "# include \"$file\"" >> ${output}T
        done


-- 
           Summary: lack of gcc target headers inclusion.
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pluto at agmk dot net
 GCC build triplet: i686-linux
  GCC host triplet: i686-linux
GCC target triplet: ppc64-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25715