configury assembler features

[Daniel Jacobowitz]

On Wed, Mar 20, 2002 at 12:44:05PM +1030, Alan Modra wrote:
> This patch allows gcc to find assembler capabilities when cross-
> compiling.  Also corrects the search dirs to use $target_alias rather
> than $target.
> 
> 	* configure.in (gcc_cv_as): Use $target_alias in directory searchs
> 	rather than $target.  Heed program_prefix and
> 	program_transform_name.  Search for gas in cross-compiler case too.
> 	"test -x" rather than "test -f".
> 	(gcc_cv_ld): Likewise.
> 	(gcc_cv_nm): Heed program_prefix and program_transform_name.
> 	(gcc_cv_objdump): Likewise.
> 	* configure: Regenerate.

I'm glad you did this.  I had a whole long message about a problem with
it, which I can no longer find.  I've still got one concern, but you
didn't introduce it: host-x-host crosses.  $host = $target doesn't
imply that $build has any relation to either, and you can easily find
the $build assembler here.  I build GCC on an i386-linux build for a
mipsel-linux host, so program_prefix et al will not be used, and you'll
just find my system assembler.

I don't suppose I could persuade you to search $PATH in:
if test -x "$DEFAULT_ASSEMBLER"; then
        gcc_cv_as="$DEFAULT_ASSEMBLER"
elif test -x "$AS"; then
        gcc_cv_as="$AS"

?  Then you'll probably find the cross-assembler, and test -its-
features, which is better than testing the build assembler at least.

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer