building gcc 4.9.0 cross compiler for msp430 fails - cannot compute suffix of object files

[Christoph K.]

Hi,

I want to compile gcc 4.9.0 as a cross compiler for the msp430 architecture.


About the prerequisites
-----------------------
Binutils 2.24 sources have been downloaded, a symbolic link
"binutils" has been created in the gcc source dir.

Then ...
cd /usr/local/src/gcc-4.9.0
./contrib/download_prerequisites
mkdir /usr/local/src/gcc-4.9.0-build-msp430-elf
cd /usr/local/src/gcc-4.9.0-build-msp430-elf
../gcc-4.9.0/configure --target=msp430-elf \
  --prefix=/usr/local/msp430-elf --enable-languages=c,c++
make -j8

The whole output of configure is attached.


The error
---------
make of gcc fails with the following error:
...
checking for msp430-elf-gcc... \
  /usr/local/src/gcc-4.9.0-build-msp430-elf/./gcc/xgcc \
  -B/usr/local/src/gcc-4.9.0-build-msp430-elf/./gcc/ \
  -B/msp430-elf/bin/ -B/msp430-elf/lib/ \
  -isystem /msp430-elf/include -isystem /msp430-elf/sys-include   
checking for suffix of object files... configure: error: \
  in `/usr/local/src/gcc-4.9.0-build-msp430-elf/msp430-elf/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
make[1]: *** [configure-target-libgcc] Fehler 1
make[1]: Leaving directory `/usr/local/src/gcc-4.9.0-build-msp430-elf'
make: *** [all] Fehler 2

"cannot compute suffix ..." seems to be a common error message.
I read that in the gcc faq, but didn't find a solution myself.


Investigation of the problem
----------------------------
There are errors in
/usr/local/src/gcc-4.9.0-build-msp430-elf/msp430-elf/libgcc/config.log:

<snip>
/usr/local/src/gcc-4.9.0-build-msp430-elf/./gcc/as: \
  106: exec: -mP: not found
</snip>

The corresponding file "config.log" is attached.


Compiler & system info
----------------------
# gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.8.2-16' \
  --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs \
  --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr \
  --program-suffix=-4.8 --enable-shared --enable-linker-build-id \
  --libexecdir=/usr/lib --without-included-gettext \
  --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 \
  --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu \
  --enable-libstdcxx-debug --enable-libstdcxx-time=yes \
  --enable-gnu-unique-object --disable-libmudflap --enable-plugin \
  --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk \
  --enable-gtk-cairo \
  --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre \
  --enable-java-home \
  --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 \
  --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 \
  --with-arch-directory=amd64 \
  --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc \
  --enable-multiarch --with-arch-32=i586 --with-abi=m64 \
  --with-multilib-list=m32,m64,mx32 --with-tune=generic \
  --enable-checking=release --build=x86_64-linux-gnu \
  --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.8.2 (Debian 4.8.2-16) 

# uname -a
Linux schwarz 3.13-1-amd64 #1 SMP Debian 3.13.10-1 (2014-04-15) x86_64 GNU/Linux


Please help
Christoph
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