Re: Bad IFS initialisation breaks gcc build of libsanitizer

Hi Alan,

On Aug 23, 2013, at 7:24 PM, Alan Modra <[email protected]> wrote:
> Putting tab first in IFS breaks func_echo_all usage of $*,
> resulting in failure of func_infer_tag to match a command line using a
> $CC with trailing spaces.  The trailing spaces were stripped out of
> CC_expanded but words in $CC were separated by tabs.  This didn't
> match the makefile expansion of $CC using the standard IFS with a
> first char of space.
> 
> 	* gl/build-aux/funclib.sh (IFS): Make first char a space.

Nice catch.  Applied - funclib.sh is used by libtoolize too, so
you've likely fixed a latent bug there as a bonus :)

This situation came about due to a historical accident, where self
tests prohibited <space><tab> by default (for obvious reasons), before
we switched to sp=' '.  Now that you point it out, I'm surprised it
hasn't tripped us up sooner.  Thanks for the patch.

Cheers,
-- 
Gary V. Vaughan (gary AT gnu DOT org)

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