From f58769c8f177601fe73cdec2042a0a65801261b3 Mon Sep 17 00:00:00 2001
From: Stephan Bergmann <sbergman@redhat.com>
Date: Tue, 10 Feb 2015 15:46:44 +0100
Subject: [PATCH] Properly check for Clang with static initializer_list bug

Change-Id: I98060f1adae0ba8ec03b2f0d6b0db6d5a1c0385c
---
 config_host/config_global.h.in |  1 +
 configure.ac                   | 28 ++++++++++++++++++++++++++++
 oox/source/export/shapes.cxx   |  7 +++++--
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/config_host/config_global.h.in b/config_host/config_global.h.in
index a1b8ffa4fcff..807d599b8046 100644
--- a/config_host/config_global.h.in
+++ b/config_host/config_global.h.in
@@ -22,6 +22,7 @@ Any change in this header will cause a rebuild of almost everything.
 #define HAVE_GCC_PRAGMA_OPERATOR 0
 #define HAVE_GCC_DEPRECATED_MESSAGE 0
 #define HAVE_THREADSAFE_STATICS 0
+#define HAVE_BROKEN_STATIC_INITILIZER_LIST 0
 #define HAVE_SYSLOG_H 0
 /* Compiler supports __attribute__((warn_unused)). */
 #define HAVE_GCC_ATTRIBUTE_WARN_UNUSED 0
diff --git a/configure.ac b/configure.ac
index 0e27a30a04e8..8ad4f6ca6fef 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6225,6 +6225,34 @@ if test "$GCC" = "yes"; then
 fi
 AC_SUBST(HAVE_GCC_PRAGMA_OPERATOR)
 
+AC_MSG_CHECKING([whether $CXX has broken static initializer_list support])
+save_CXXFLAGS=$CXXFLAGS
+CXXFLAGS="$CXXFLAGS $CXXFLAGS_CXX11"
+AC_LANG_PUSH([C++])
+AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+    // Exit with failure if the static initializer_list is stored on the stack
+    // (as done by Clang < 3.4):
+    #include <initializer_list>
+    struct S {};
+    bool g(void const * p1, void const * p2) {
+        int n;
+        return !((p1 > p2 && p2 > &n) || (p1 < p2 && p2 < &n));
+    }
+    bool f(void const * p1) {
+        static std::initializer_list<S> s { S() };
+        return g(p1, s.begin());
+    }
+    ]],[[
+        int n;
+        return f(&n) ? 0 : 1;
+    ]])], [broken=no], [broken=yes])
+AC_LANG_POP([C++])
+CXXFLAGS=$save_CXXFLAGS
+AC_MSG_RESULT([$broken])
+if test "$broken" = yes; then
+    AC_DEFINE([HAVE_BROKEN_STATIC_INITILIZER_LIST])
+fi
+
 dnl ===================================================================
 dnl system stl sanity tests
 dnl ===================================================================
diff --git a/oox/source/export/shapes.cxx b/oox/source/export/shapes.cxx
index fba5b8d5fe1a..4ef0838f233f 100644
--- a/oox/source/export/shapes.cxx
+++ b/oox/source/export/shapes.cxx
@@ -17,6 +17,9 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <sal/config.h>
+
+#include <config_global.h>
 #include <unotools/mediadescriptor.hxx>
 #include <filter/msfilter/util.hxx>
 #include "oox/core/xmlfilterbase.hxx"
@@ -283,7 +286,7 @@ ShapeExport& ShapeExport::WriteGroupShape(uno::Reference<drawing::XShape> xShape
 
 static bool lcl_IsOnBlacklist(OUString& rShapeType)
 {
-#if !defined __clang__
+#if !HAVE_BROKEN_STATIC_INITILIZER_LIST
     static
 #endif
     const std::initializer_list<OUStringLiteral> vBlacklist = {
@@ -347,7 +350,7 @@ static bool lcl_IsOnBlacklist(OUString& rShapeType)
 
 static bool lcl_IsOnWhitelist(OUString& rShapeType)
 {
-#if !defined __clang__
+#if !HAVE_BROKEN_STATIC_INITILIZER_LIST
     static
 #endif
     const std::initializer_list<OUStringLiteral> vWhitelist = {