RFC: Permit relative path for --with-gxx-include-dir

Mark Mitchell mark@codesourcery.com
Wed Mar 7 07:32:00 GMT 2007

Daniel Jacobowitz wrote:

>> This patch makes it possible to specify a relative path, instead of an
>> absolute path.  If a relative path is provided, the path is relative
>> to $prefix.  I haven't yet fully tested this patch on mainline (though
>> I have tested it on 4.1 and 4.2).  I plan to do that testing, and
>> check in the patch, but I wanted to give a chance for people to
>> comment.  Any objections?  (I won't check this in for at least 24
>> hours, to give people a chance to comment.)
> I thought the usual practice was to specify --with-foo='${prefix}'/bar
> directly.  At least, I know I've done that before.

I guess that would work -- but why make users do that?  That seems even
more arcane, and potentially susceptible to vagaries of exactly how the
variable is used in the Makefiles, etc.  Putting the quoting into the
libstdc++ configure script seems to allow the user to specify a more
obvious form, and allows the libstdc++ scripts to process the option as

Mark Mitchell
(650) 331-3385 x713

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