building cross compiler in OS X?

[Geoff Oltmans]

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'...
>