commit ab8bf5533f8de9bb1aa9dc83e650e4eccf0fcac3
author Luboš Luňák <l.lunak@collabora.com> Fri Apr 13 11:20:08 2018 +0200
committer Luboš Luňák <l.lunak@collabora.com> Wed Apr 18 11:32:34 2018 +0200
tree 2f9b1a1a2462c09fa32301b6e42325ad8bb2578e
parent 32d96fdab8fbedba81e21f1d01cf35f536f623c8

avoid error message from configure about clang's header for compiler plugins

The header fails to compile without C++11 with recent Clang, and although
configure currently passes the check because the existence of the header
is considered to be enough, it still prints a distracting error message
about the compile check failing.

Change-Id: Icf037114b73122f193629e17a8e2b0e2bca3a990

configure.ac

diff --git a/configure.ac b/configure.ac
index f21424e..bdc3746 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6568,7 +6568,7 @@ if test "$COM_IS_CLANG" = "TRUE"; then
        # compiler plugins must be built with "native" compiler that was used to build Clang itself:
        : "${COMPILER_PLUGINS_CXX=g++}"
        CXX=$COMPILER_PLUGINS_CXX
        CPPFLAGS="$CPPFLAGS -I$CLANGDIR/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
        CPPFLAGS="$CPPFLAGS $CXXFLAGS_CXX11 -I$CLANGDIR/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
        AC_CHECK_HEADER(clang/AST/RecursiveASTVisitor.h,
            [COMPILER_PLUGINS=TRUE],
            [