Re: how to disable caching of result

[Bob Friesenhahn]

On Tue, 6 Apr 2004, Matthias Czapla wrote:
> because the result of the first test is cached. How can I tell
> autoconf to forget the result of the first test before doing it
> the second time?

If you look in config.status you will see the form that the cached
values take.  You can then unset the cache variable that autoconf uses
before trying again.  Here is some example code taken from one of my
configure scripts:

    have_libdps='no'
    LIBDPS_XT=''
    AC_CHECK_LIB(dps,DPSInitialize,have_libdps='yes',have_libdps='no',)
    if test "$have_libdps" != 'yes'
    then
      # Unset cache variable so we can try again.
      unset ac_cv_lib_dps_DPSInitialize
      AC_CHECK_LIB(dps,DPSInitialize,have_libdps='yes',have_libdps='no',-lXt)
      if test "$have_libdps" = 'yes'
      then
        LIBDPS_XT='-lXt'
      fi
    fi

Bob
======================================
Bob Friesenhahn
address@hidden
http://www.simplesystems.org/users/bfriesen