bug 1032055 - prevent lto from reordering static xul component constants r=glandium

toolkit/library/StaticXULComponentsEnd/moz.build

@@ -6,6 +6,10 @@ SOURCES += [
     'StaticXULComponentsEnd.cpp',
 ]
 
+# Don't let LTO reorder StaticXULComponentsStart.o.
+if '-flto' in CONFIG['OS_CXXFLAGS']:
+    SOURCES['StaticXULComponentsEnd.cpp'].flags += ['-fno-lto']
+
 LIBRARY_NAME = 'StaticXULComponentsEnd'
 
 DEFINES['MOZILLA_INTERNAL_API'] = True

toolkit/library/moz.build

@@ -22,6 +22,10 @@ MSVC_ENABLE_PGO = True
 # it contains first in Windows PGO builds.
 SOURCES['StaticXULComponentsStart.cpp'].no_pgo = True
 
+# Don't let LTO reorder StaticXULComponentsStart.o.
+if '-flto' in CONFIG['OS_CXXFLAGS']:
+    SOURCES['StaticXULComponentsStart.cpp'].flags += ['-fno-lto']
+
 if CONFIG['OS_ARCH'] == 'WINNT':
     SOURCES += [
         'nsDllMain.cpp',