Re: AC_FUNC_GETMNTENT look in libc before -lsun

[Mark D. Baushke]

Noah Misch <address@hidden> wrote:

> Mr. Baushke,
> 
> On Mon, Dec 06, 2004 at 10:16:51AM -0800, Mark D. Baushke wrote:
> > Problem: UNICOS 9 does not have a -lsun library and puts getmntent into
> > the C library. AC_FUNC_GETMNTENT does not currently check to see if the
> > function is found before adding the possibly non-existent -lsun library
> > into LIBS.
> 
> The macro normally does find getmntent in the C library; indeed, the GNU C
> Library is constructed that way, and the macro handles it correctly:
> 
> checking for getmntent in -lsun... no
> checking for getmntent in -lseq... no
> checking for getmntent in -lgen... no
> checking for getmntent... yes
> 
> It looks like the problem is somewhere else, perhaps a false positive from
> AC_CHECK_LIB(sun).  Could you post config.log?

I could be mistaken, but I believe the old code used

AC_CHECK_LIB(sun, getmntent, LIBS="-lsun $LIBS")

which did not allow for checking to see if the library really existed or
was even needed.

config.log files were attached for both of these savannah bug reports:

  https://savannah.gnu.org/bugs/?func=detailitem&item_id=11008
  https://savannah.gnu.org/bugs/?func=detailitem&item_id=11220

I belive that Paul Eggert's latest patch should do the trick, but I
don't think I will have access to the UNICOS machine again until this
weekend...

        -- Mark