[PATCH libX11] Add AC_ARG_VAR for GROFF and PS2PDF

[Jeremy Huddleston]

On Oct 20, 2009, at 12:44, Dan Nicholson wrote:

> On Tue, Oct 20, 2009 at 12:38 PM, Yaakov (Cygwin/X)
> <yselkowitz at users.sourceforge.net> wrote:
>> On 20/10/2009 14:34, Dan Nicholson wrote:
>>> I'm pretty sure AC_PATH_PROG{,S} already check the environment
>>> variables. What AC_ARG_VAR does is put a blurb in the --help output
>>> and allow you to pass it on the command line. E.g., ./configure
>>> GROFF=/foo/groff. Is that what you want?
>>
>> Yes.  The groff shipped in Mac OS < 10.6 is defective, so this is  
>> needed
>> to tell configure to use a working groff (from Fink, MacPorts, or a
>> self-compiled version).
>
> What I'm saying is that AC_PATH_PROGS already respects
> GROFF=/foo/groff in the environment. AC_ARG_VAR means you can also
> pass that on the command line to configure. Is that necessary or does
> the existing support in AC_PATH_PROGS work (please check)?

AC_PATH_PROGS is respecting the environment variable...

but for some reason, it's not liking it when I set it in jhbuildrc ...  
hmm... maybe some cache problem somewhere...

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