I'm having problem bootstrapping gcc-4.8, 4.9, and 5.3 on SPARC/Solaris 10:
their bootstraps always fail with massive bootstrap comparison failures:
Comparing stages 2 and 3
warning: gcc/cc1plus-checksum.o differs
warning: gcc/cc1-checksum.o differs
Bootstrap comparison failure!
gcc/ada/sem.o differs
...
(hundres of lines of .o files)
...
libiberty/crc32.o differs
make[2]: *** [compare] Error 1
make[2]: Leaving directory `/tmp/mikpe/objdir'
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory `/tmp/mikpe/objdir'
make: *** [bootstrap] Error 2
Releases up to and including gcc-4.7.4 bootstrapped fine, and I'm using
that 4.7.4 as my bootstrap compiler.
I have no problems bootstrapping on {SPARC,x86_64,ARM,m68k}/Linux, so the
issue appears Solaris-specific.
Am I missing some Solaris-specific tweak or non-upstreamed patch?
A typical configure command would be:
/tmp/mikpe/gcc-4.9.3/configure --prefix=/home/mikpe/pkgs/sol2-sparc64/gcc-4.9.3 --with-gmp-include=/it/sw/gnu/include --with-mpfr=/it/sw/gnu --with-mpc=/it/sw/gnu --disable-libsanitizer --disable-libquadmath --disable-plugin --disable-lto --disable-nls --disable-shared --disable-libmudflap --disable-libgomp --enable-threads --enable-checking=release --enable-version-specific-runtime-libs --with-system-zlib --enable-languages=c,c++,ada --with-cpu=ultrasparc --without-cloog --without-ppl --enable-threads=posix --enable-tls --with-gnu-as --with-as=/it/sw/gnu/bin/gas --without-gnu-ld --with-ld=/usr/ccs/bin/ld
though I have also tried --without-gnu-as --with-as=/usr/ccs/bin/as,
and with different (newer) gmp/mpfr/mpc installations.
