On Mon, Nov 30, 2015 at 6:57 PM, Jeff Law <l...@redhat.com> wrote: > What part of this requires bits to run? I see AC_COMPILE_IFELSE, but not > anything which obviously requires running the resulting code.
Without AC_USE_SYSTEM_EXTENSIONS one gets: configure.ac:111: warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS ../../lib/autoconf/specific.m4:332: AC_GNU_SOURCE is expanded from... configure.ac:111: the top level