https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891
--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Mon Feb 8 15:22:32 2016 New Revision: 233214 URL: https://gcc.gnu.org/viewcvs?rev=233214&root=gcc&view=rev Log: Enable isinf/isnan checks for all targets PR libstdc++/48891 * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Enable isinf and isnan checks for all targets except *-*-solaris2.* and ensure we find the libc math.h header not our own. * configure: Regenerate. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/acinclude.m4 trunk/libstdc++-v3/configure