[Bug target/61737] ICE when building libgcc for cris cross-compiler

["dhowells at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61737

--- Comment #1 from dhowells at redhat dot com <dhowells at redhat dot com> ---
I needed the following change to gcc (courtesy of Nick Clifton) to get cris-gcc
to build at all, even without libgcc:

Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc
+++ gcc/config.gcc
@@ -1130,7 +1130,7 @@
 crisv32-*-linux* | cris-*-linux*)
     tm_file="dbxelf.h elfos.h ${tm_file} gnu-user.h linux.h glibc-stdint.h
cris/linux.h"
     # We need to avoid using t-linux, so override default tmake_file
-    tmake_file="cris/t-cris cris/t-linux t-slibgcc t-linux"
+    tmake_file="${tmake_file} cris/t-cris cris/t-linux t-slibgcc"
     extra_options="${extra_options} cris/linux.opt"
     case $target in
       cris-*-*)

This behaviour can be produced with the SVNREV 212237 (2014-07-02) gcc-4.9.0
compiler tarball plus one patch and then the following config:

AR_FOR_TARGET=/usr/bin/cris-linux-gnu-ar \
AS_FOR_TARGET=/usr/bin/cris-linux-gnu-as \
DLLTOOL_FOR_TARGET=/usr/bin/cris-linux-gnu-dlltool \
LD_FOR_TARGET=/usr/bin/cris-linux-gnu-ld \
NM_FOR_TARGET=/usr/bin/cris-linux-gnu-nm \
OBJDUMP_FOR_TARGET=/usr/bin/cris-linux-gnu-objdump \
RANLIB_FOR_TARGET=/usr/bin/cris-linux-gnu-ranlib \
STRIP_FOR_TARGET=/usr/bin/cris-linux-gnu-strip \
WINDRES_FOR_TARGET=/usr/bin/cris-linux-gnu-windres \
WINDMC_FOR_TARGET=/usr/bin/cris-linux-gnu-windmc \
LDFLAGS='-Wl,-z,relro ' \
../gcc-4.9.0-20140702/configure --bindir=/usr/bin
--build=x86_64-redhat-linux-gnu \
  --datadir=/usr/share --disable-decimal-float --disable-dependency-tracking \
  --disable-gold --disable-libgomp --disable-libmudflap --disable-libquadmath \
  --disable-libssp --disable-nls --disable-plugin --disable-shared \
  --disable-silent-rules --disable-sjlj-exceptions --disable-threads \
  --enable-checking= --enable-gnu-unique-object --enable-initfini-array \
  --enable-languages=c,c++ --enable-linker-build-id --enable-nls
--enable-obsolete \
  --enable-targets=all --exec-prefix=/usr --host=x86_64-redhat-linux-gnu \
  --includedir=/usr/include --infodir=/usr/share/info --libexecdir=/usr/libexec
\
  --localstatedir=/var --mandir=/usr/share/man --prefix=/usr \
  --program-prefix=cris-linux-gnu- --sbindir=/usr/sbin
--sharedstatedir=/var/lib \
  --sysconfdir=/etc --target=cris-linux-gnu \
  --with-bugurl=http://bugzilla.redhat.com/bugzilla/ \
  --with-linker-hash-style=gnu --with-newlib
--with-sysroot=/usr/cris-linux-gnu/sys-root \
  --with-system-libunwind --with-system-zlib --without-headers --without-isl \
  --without-cloog

The binutils is:
cris-linux-gnu-as -v
GNU assembler version 2.24.0 (cris-linux-gnu) using BFD version version
2.24.0-4.fc20 20140613

The compiler is built with:
AR_FOR_TARGET=/usr/bin/cris-linux-gnu-ar \
AS_FOR_TARGET=/usr/bin/cris-linux-gnu-as \
DLLTOOL_FOR_TARGET=/usr/bin/cris-linux-gnu-dlltool \
LD_FOR_TARGET=/usr/bin/cris-linux-gnu-ld \
NM_FOR_TARGET=/usr/bin/cris-linux-gnu-nm \
OBJDUMP_FOR_TARGET=/usr/bin/cris-linux-gnu-objdump \
RANLIB_FOR_TARGET=/usr/bin/cris-linux-gnu-ranlib \
STRIP_FOR_TARGET=/usr/bin/cris-linux-gnu-strip \
WINDRES_FOR_TARGET=/usr/bin/cris-linux-gnu-windres \
WINDMC_FOR_TARGET=/usr/bin/cris-linux-gnu-windmc \
make -C cris-linux-gnu tooldir=/usr all-gcc

libgcc is built with:
make -C cris-linux-gnu tooldir=/usr all-target-libgcc