> -----Original Message-----
> From: Joseph Myers [mailto:joseph@codesourcery.com]
> Sent: Saturday, November 10, 2012 12:35 AM
> To: Terry Guo
> Cc: gcc-patches@gcc.gnu.org
> Subject: RE: [RFC] New feature to reuse one multilib among different
> targets
> 
> On Fri, 9 Nov 2012, Terry Guo wrote:
> 
> > You are right that we should make script POSIX compliant. This v3
> patch
> > removed "function" and "local" which don't belong to POSIX standard.
> I also
> > verified that CONFIG_SHELL is passed to this script with value
> "/bin/sh".
> 
> Suppose /bin/sh is not a POSIX shell but the user sets CONFIG_SHELL to
> something else (which is a POSIX shell).  Will SHELL in the makefile
> get
> set to the POSIX shell the user specified as CONFIG_SHELL?  That's
> what's
> needed to be able to use POSIX shell features in this script.
> 

The attached patch is updated to use sub-script rather than the function to
reuse code. Is it ok to avoid the issue you just mentioned?

BR,
Terry

2012-11-13  Terry Guo  <terry.guo@arm.com>

	* genmultilib (tmpmultilib3): New refactored sub-script
	to convert the option combination into folder name.
	(tmpmultilib4): New refactored sub-script to output the
	options in a option combination.
	(MULTILIB_REUSE): New argument.
	* Makefile.in (s-mlib): Add a new argument MULTILIB_REUSE.
	* gcc.c (multilib_reuse): New spec.
	(set_multilib_dir): Use multilib_reuse.
	* doc/fragments.texi: Mention MULTILIB_REUSE.