Re: Problem with tests for GSL

[Benoit SIGOURE]

On Oct 29, 2007, at 5:53 PM, Laurence Finston wrote:

> However, I would still be interested to know if there's a way of  
> passing
> specific options to the C or C++ compiler when `configure' runs its
> tests without having to go deeply into the guts of Autoconf.  I have
> looked into it a bit, but it seems like a major undertaking to really
> understand how to use it at that level.

You can change the relevant flags before the invocation of the  
compiler and restore them afterwards.  The typical idiom is this:

saved_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -my-new-flag"
AC_TRY_LINK(...)
# now you know whether -my-new-flag works and you can take the  
appropriate action
CFLAGS=$saved_CFLAGS

Cheers,

--
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory

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