On 05/08/2013 08:19 PM, Allan McRae wrote: > Would an acceptable solution at > the autoconf level be to split the CPPFLAGS into -I flags and others > (-D, -U) and just use the -I ones in the header test? I don't think so, no. -D and -U can affect whether cpp works. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf