--with-cpu and --with-arch for m68k

[Nathan Sidwell]

Anders Montonen wrote:
> Hello, <http://gcc.gnu.org/install/configure.html> says that the 
> --with-cpu configuration option is "...only supported on some targets, 
> including ARM, i386, M68k, PowerPC, and SPARC". 
> <http://gcc.gnu.org/install/specific.html#m68k-x-x> in turn says that 
> "If you only need the M680x0 libraries, you can omit the ColdFire ones 
> by passing --with-arch=m68k to configure." However, if I try passing 
> either option to GCC 4.2.1 I get an error message about the options not 
> being supported when trying to build GCC ("This target does not support 
> --with-cpu.", "This target does not support --with-arch.")
> 
> The complete configure line is:
> ../gcc-4.2.1/configure --prefix=/Users/anders/local --target=m68k-elf 
> --disable-nls --enable-languages="c,c++" --disable-shared 
> --disable-threads --disable-multilib --disable-mudflap --with-newlib 
> --with-cpu=m68000 --with-arch=m68k
> 
> Is there a bug in the documentation, in GCC or am I misunderstanding 
> something?

The --with-arch support for m68k was added to mainline, not 4.2.  I'm not sure 
what version of gcc that web page you cite was derived from.

nathan

-- 
Nathan Sidwell    ::   http://www.codesourcery.com   ::         CodeSourcery
nathan@codesourcery.com    ::     http://www.planetfall.pwp.blueyonder.co.uk