Can't build m68k-elf target with gcc-3.3.2 or gcc-3.4-20031224 tree

[Paul Cadaret]

I have been trying various things for almost a week trying to get 
gcc-3.3.2 & gcc-3.4-20031224 to build
properly for a target of 'm68k-elf'.   I have found several GCC-FAQs 
that provided several useful hints
but I have yet to make it all the way through the build.

I am running configure as follows:

    ---configure-complete---
    ${SHELL}  ${SRCDIR}/configure                                 \
            --prefix=$LOCAL                                         \
            --target=m68k-elf                                       \
            --program-prefix=m68k-elf-                              \
            --with-gnu-as                                           \
            --with-gnu-ld                                           \
            --enable-languages="c,c++,objc"                         \
            --disable-nls                                           \
            --verbose                                               \
            #

My latest attempt was with the gcc-3.4-20031224 tree and the build died 
as follows:

      ...
      3367  Configuring in m68k-elf/libstdc++-v3
      3368  configure: creating cache ../config.cache
      3369  checking build system type... sparc-sun-solaris2.7
      3370  checking host system type... m68k-unknown-elf
      ...
      3470  checking for thread model used by GCC... single
      3471  configure: Debug build flags set to -g3 -O0
      3472  checking for additional debug build... no
      3473  checking for extra compiler flags for building...
      3474  configure: error: No support for this host/target combination.
      3475  make: *** [configure-target-libstdc++-v3] Error 1

The error here would lead me to think that the 'm68k-elf' target wasn't 
supported anymore, however,
the actual cross compiler (xgcc) builds fine.   Earlier I was able to 
build build a 'bootstrap gcc' in
the gcc-3.4-20031224 tree with the 'all-gcc' target and I was able to 
install it with the 'install-gcc'
target.   In this case I ran configure as follows:

    ---configure-min---  
    ${SHELL}  ${SRCDIR}/configure                                 \
            --prefix=$LOCAL                                         \
            --target=m68k-elf                                       \
            --program-prefix=m68k-elf-                              \
            --with-gnu-as                                           \
            --with-gnu-ld                                           \
            --without-headers                                       \
            --with-newlib                                           \
            --verbose                                               \
            #                      

 From this I assumed that the 'm68k-elf' target was supposed to be 
supported in gcc-3.4-20031224

After this bit of success I decided to now try to build a complete 
cross-gcc/g++ again now that the bootstrap-gcc
is installed.   I must say that having the bootstrap-gcc installed made 
a big difference in that several of the
sub-configure tests that previously died because there was no 'libc.a' 
available ran this time through.  I looked
into the associated configure script for libstdc++-v3 but it is 60,000 
lines long and virtually unreadable.

I completed another test this morning where I ran the build of gcc-3.2.3 
using the same arguments to configure
as (---configure-complete---).  That build ran fine.
------------------------------------------------------------
Q:
1.  Is the 'm68k-elf'  target still supported?   If so, I'll file a bug 
report.  
If not, is there another m68k-elf target variant that is supported?

I just want a gcc/g++ cross-compiler & libraries that I can adapt for a 
real-time kernel target.  It's OK if some of the
library routines make some incroorect assumptions about the OS 
environment for now.

Thanks much.
Paul