With the impending release of autoconf 2.54, I am now very close to a configure.in that works with both 2.13 and 2.5x. However, one problem remains, and it is quite similar to the one reported by Andreas Bauer a few days ago (Subject: Different versions of autoconf cause problems here...)
The problem is that acconfig.h is now deprecated. I would like to remove it completely in one of my projects because it supplies only one symbol, but then it won't work with autoconf 2.13. AC_MSG_CHECKING(for time_t in time.h) AC_EGREP_HEADER(time_t,time.h, [ac_cv_type_time_t=yes AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_CHECK_TYPE(time_t, long)]) and acconfig.h contains the definition for time_t. Can anyone suggest a test for time_t that works with both 2.13 and 2.5x and doesn't require acconfig.h?
