auto-import changelog data from autoconf-2.13-13.src.rpm
    Thu Jul 26 2001 Than Ngo <than@redhat.com>
    - add patch to fix exit status
    Tue Jul 10 2001 Jens Petersen <petersen@redhat.com>
    - add patch to include various standard C headers as needed by various
        autoconf tests (#19114)
    - add patch to autoscan.pl to get a better choice of init file (#42071), to
        test for CPP after CC (#42072) and to detect C++ source and g++
        (#42073).
    Tue Jun 26 2001 Jens Petersen <petersen@redhat.com>
    - Add a back-port of _AC_PROG_CXX_EXIT_DECLARATION from version 2.50 to
        make detection of C++ exit() declaration prototype platform
        independent. The check is done in AC_PROG_CXX with the result stored in
        "confdefs.h". The exit() prototype in AC_TRY_RUN_NATIVE is no longer
        needed. (fixes #18829)