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Re: building cross compiler in OS X?


Well that must have been part of the problem. I can't recall giving any options to configure in binutils. I went back and did that with the following:

/configure --target=m68k-elf --program-prefix=cf-

however now I get the following build error with binutils

checking whether the C compiler (gcc -g -O2 ) works... no
configure: error: installation or configuration problem: C compiler cannot create executables.


There was a comment before this that said the following:

checking whether the C compiler (gcc -g -O2 ) is a cross-compiler... no

Does the gcc I build with need to be a cross compiler in order to build binutils for another target? Chicken and egg problem?

Thanks for your help?


On May 29, 2009, at 12:57 AM, Kai Ruottu wrote:


Geoff Oltmans wrote:
Hello!
I'm trying to build a gcc cross compiler for a coldfire target on a Intel OS X (10.5.7) machine. I get the following error when trying to build (in libgcc):
checking for suffix of object files... configure: error: cannot compute suffix of object files: cannot compile
This is while compiling under: i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5490)
I'm building gcc-4.3.3, using mpfr-2.4.1 and gmp-4.1.4.
Here's the configure line I used:
./gcc-4.3.3/configure --target=m68k-elf --program-prefix=cf- --with- arch=cf

What was the configure command with GNU binutils? An assembler for m68k-elf and a linker for m68k-elf are separate from the native i686-apple-darwin9 ones... Having the target binutils and the target C library installed before starting to build GCC are the default prerequisites...

The GCC build tries to check the target C library unless one uses
the '--with-newlib' in the GCC configure. Then only the newlib
headers (from 'newlib/libc/include' in the newlib sources) will
be needed to seen in '$prefix/$target/include' and
'$prefix/$target/sys-include' (the second a symlink to the first).
In your case the $prefix will be '/usr/local' when no '--prefix= $prefix'
was given...


/Users/Oltmans/Downloads/gccbuild/./gcc/xgcc -B/Users/Oltmans/ Downloads/gccbuild/./gcc/
> -B/usr/local/m68k-elf/bin/

The target 'as' and 'ld' should be here...

-B/usr/local/m68k-elf/lib/

The target C library binaries could be here...


> -isystem /usr/local/m68k-elf/include
> -isystem /usr/local/m68k-elf/sys-include

The target C library headers should be here...

/Users/Oltmans/Downloads/gccbuild/./gcc/as: line 77: exec: : not found

Probaly this script points to the native i686 'as'...




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