1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/build/autoconf/gcc-pr39608.m4 Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,37 @@
1.4 +dnl This Source Code Form is subject to the terms of the Mozilla Public
1.5 +dnl License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 +dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.7 +
1.8 +dnl Check if the compiler is gcc and has pr39608. If so
1.9 +dnl disable vrp.
1.10 +
1.11 +AC_DEFUN([MOZ_GCC_PR39608],
1.12 +[
1.13 +AC_MSG_CHECKING(for gcc pr39608)
1.14 +ac_have_gcc_pr39608="yes"
1.15 +AC_LANG_SAVE
1.16 +AC_LANG_CPLUSPLUS
1.17 +
1.18 +AC_TRY_COMPILE([
1.19 +typedef void (*FuncType)();
1.20 +template<FuncType Impl>
1.21 +void f();
1.22 +template<typename T> class C {
1.23 + typedef C<T> ThisC;
1.24 + template<int g()>
1.25 + static void h() {
1.26 + f<ThisC::h<g> >();
1.27 + }
1.28 +};
1.29 +], true,
1.30 + ac_have_gcc_pr39608="no",
1.31 + true)
1.32 +
1.33 +AC_LANG_RESTORE
1.34 +
1.35 +AC_MSG_RESULT($ac_have_gcc_pr39608)
1.36 +if test "$ac_have_gcc_pr39608" = "yes"; then
1.37 + echo This compiler would fail to build firefox, please upgrade.
1.38 + exit 1
1.39 +fi
1.40 +])
