Re: FYI: grep had to switch: AC_PROG_CC_STDC -> AC_PROG_CC

[Adrian Bunk]

On Wed, Oct 24, 2012 at 12:29:13PM -0700, Paul Eggert wrote:
> On 10/24/2012 02:01 AM, Jim Meyering wrote:
> > When attempting to bootstrap grep.git using
> > autoconf.git (v2.69-37-gb9dc6b6), I see this failure:
> > 
> >     autoreconf: running: aclocal -I m4 -I m4
> >     configure.ac:81: error: AC_PROG_CC cannot be called after AM_PROG_CC_C_O
> 
> Yeowch.  Thanks for reporting this.  The problem arises because
> Automake's AM_PROG_CC_C_O redefines AC_PROG_CC.

Ouch.

> We don't want to discourage people from using AC_PROG_CC,
> so this is an Autoconf bug.  I installed this into Autoconf:
>...

You also have to exclude AC_PROG_CC_C89 and AC_PROG_CC_C99 (similar
to AC_PROG_CC_STDC) in au_exclude_list in tests/mktests.sh to fix the
"make check" errors this causes.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed