From: Paul Eggert [mailto:eggert@xxxxxxxxxxxxxxxxxxx] On > It sounds like you're running into AC_REQUIRE insertions. The > documentation talks about AC_REQUIRE. OK. This help finally helped me isolate the problem to this succinct description that I think can only be called a bug: In my environment, if AC_PROG_CC precedes AC_FUNC_ALLOCA, AC_HEADER_STDC is called without having $ac_objext set. If AC_PROG_CC succeeds AC_FUNC_ALLOCA, $ac_objext is set appropriately and the header check passes. Scott
