...
mv -f Tlto-wrapper lto-wrapper
(SHLIB_LINK='/n/42/guerby/build/./gcc/xgcc -B/n/42/guerby/build/./gcc/ -O2  -g -O2 -minterlink-mips16 -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -\
fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -shared -nodefaultlibs -Wl,--soname=@shlib_base_name@.so.1 -Wl,--version-script=@shlib_map_file@ -o @multilib_dir@/@shlib_base_name@.so.1.tmp @multilib_flags@ @shlib_obj\
s@ -lc && rm -f @multilib_dir@/@shlib_base_name@.so && if [ -f @multilib_dir@/@shlib_base_name@.so.1 ]; then mv -f @multilib_dir@/@shlib_base_name@.so.1 @multilib_dir@/@shlib_base_name@.so.1.backup; else true; fi && mv @multilib_dir@/@s\
hlib_base_name@.so.1.tmp @multilib_dir@/@shlib_base_name@.so.1 && ln -s @shlib_base_name@.so.1 @multilib_dir@/@shlib_base_name@.so'; \
        gcc -mabi=n32   -g -fkeep-inline-functions -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings\
 -Wold-style-definition -Wc++-compat -fno-common  -DHAVE_CONFIG_H -I. -I. -I../../trunk/gcc -I../../trunk/gcc/. -I../../trunk/gcc/../include -I../../trunk/gcc/../libcpp/include -I/opt/cfarm/gmp-4.2.4-n32/include -I/opt/cfarm/mpfr-2.4.1-\
n32/include -I/opt/cfarm/mpc-0.8-n32/include  -I../../trunk/gcc/../libdecnumber -I../../trunk/gcc/../libdecnumber/dpd -I../libdecnumber     \
  -DSTANDARD_STARTFILE_PREFIX=\"../../../\" -DSTANDARD_EXEC_PREFIX=\"/n/42/guerby/install-trunk-159959/lib/gcc/\" -DSTANDARD_LIBEXEC_PREFIX=\"/n/42/guerby/install-trunk-159959/libexec/gcc/\" -DDEFAULT_TARGET_VERSION=\"4.6.0\" -DDEFAULT_\
TARGET_MACHINE=\"mips64el-unknown-linux-gnu\" -DSTANDARD_BINDIR_PREFIX=\"/n/42/guerby/install-trunk-159959/bin/\" -DTOOLDIR_BASE_PREFIX=\"../../../../\"  `test "X${SHLIB_LINK}" = "X" || test "yes" != "yes" || echo "-DENABLE_SHARED_LIBGC\
C"` -DCONFIGURE_SPECS="\"\"" \
  -c ../../trunk/gcc/gcc.c -o gcc.o)
../../trunk/gcc/gcc.c:827:32: error: macro "CHOOSE_DYNAMIC_LINKER" requires 3 arguments, but only 2 given
../../trunk/gcc/gcc.c:827: error: expected ',' or ';' before ')' token
make[3]: *** [gcc.o] Error 1
make[3]: Leaving directory `/home/guerby/build/gcc'
make[2]: *** [all-stage1-gcc] Error 2
make[2]: Leaving directory `/home/guerby/build'
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory `/home/guerby/build'
make: *** [bootstrap] Error 2

bootstrap worked at rev 159862 fails at rev 159959.