Re: c99

[Guido Draheim]

address@hidden wrote:
> 
> 1. How do i request a C99 compiler?  Is there some variation on AC_PROG_CC?

Do never ask for a version declaration, always ask for a feature
you need - that is the basic principle of autoconf. Many features
being declared as C99 were present in the 1994-version of a compiler
too, e.g. { .field: value } was present a long time before in many
many compilers - the C99 just made that official. So the question
goes back to you - what *feature* do you want?

Such a feature test can then be made independent of AC_PROG_CC, well,
it would "exit" when the current `cc` or `gcc` does not have the
feature you want - or do you want a macro that walks through several
installed compilers and chooses the c99-one? Well, that might be
another page in the book, gnu hackers are usually okay with finding
the gcc being usually the most uptodate... which is why AC_PROG_CC
will usually prefer a gcc over vendors'cc when both are there...

> 
> 2. i see a link to "The Official Macro Archive" but it doesn't work.
> Is there a mirror somewhere?
> 

you do not mean a link to cryp.to/macro-archive but the link to the
GNU Macro Archive at http://www.gnu.org/software/ac-archive - right?
A downtime of gnu.org should not happen for long time, but you can
get an extended tarball from my branch at http://ac-archive.sf.net
but I did not bother lately to upload a gnu.org-lookalike generated
from my cvs copy, so it is not exactly the same the gnu.org-tarball
named autoconf-archive.tar.gz - I'll schedule to put up a gnu.org
lookalike for next week, both as a mirror (for you convenience) and
as technical demonstration that the sf.net ac-archive build system
includes all features from the gnu ac-archive makefile (which is
the case since the branch happens to exist).

cheers,
-- guido                            Edel sei der Mensch, hilfreich und gut
GCS/E/S/P C++$++++ ULHS L++w- N++@ d(+-) s+a- r+@>+++ y++ 5++X- (geekcode)