cross compiling libstdc++ fails

["Dehmel, Rüdiger"]

Hello,

My gcc version is 3.2

On my build system solaris sparc 2.6 a native gcc 3.2 is installed.

I need a solaris 2.5.1 i386 cross compiler.

../binutils-2.13/configure --target=i386-pc-solaris2.5.1
make "CFLAGS=-s -O2"
make install

copy libs (libc) and includes from a solaris 2.5.1 i386 to my build machine:
/usr/local/i386-pc-solaris2.5.1/...

Configure cmd line for gcc is:
../gcc-3.2/configure \
  --target=i386-pc-solaris2.5.1 \
  --enable-languages=c,c++ \
  --with-gnu-as \
  --with-gnu-ld 

Makeing the cross compiler for C (gcc) is OK. (Hello world runs fine)

Makeing C++ fails because of problems make libstdc++:

many error mesages like this one:
::acosf undeclared

It looks like a difference between the configure run and the compiler run.

the main gcc makefile generates configure flags for libstdc++:
--build=sparc-sun-solaris2.6 --host=i386-pc-solaris2.5.1
is this correct for cross building libstdc++?

Thanks for any idea


Ruediger