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authorPeter Seiderer <ps.report@gmx.net>2016-03-03 15:17:31 +0100
committerPeter Seiderer <ps.report@gmx.net>2016-03-08 19:30:04 +0000
commite69e69519661954716d59bfa5bbd0626515cfda9 (patch)
tree770e0fd9a81aec2ddf3e39119a1bcca3a48db5f1
parent4ef990ce4a15959c5eabc8f9731b5b5155db5b07 (diff)
Disable c++ standard compiler flags for the host build
There is no test for c++ standard support for the host build (only for the target compiler/build) which leads to trouble in some cross compiling environments (old host compiler, new cross compiler): g++: error: unrecognized command line option ā€˜-std=c++1zā€™ So disable c++ standard compiler flags unconditionally for host builds. Task-number: QTBUG-51644 Change-Id: Ifb3042e125fe199a7e081740d1171d26ccacf0c5 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
-rw-r--r--mkspecs/features/default_post.prf5
1 files changed, 4 insertions, 1 deletions
diff --git a/mkspecs/features/default_post.prf b/mkspecs/features/default_post.prf
index cd8d8859aa..561c8f4858 100644
--- a/mkspecs/features/default_post.prf
+++ b/mkspecs/features/default_post.prf
@@ -95,7 +95,10 @@ breakpad {
!isEmpty(QMAKE_STRIP):QMAKE_POST_LINK = $$QMAKE_POST_LINK$$escape_expand(\\n\\t)$$quote($$QMAKE_STRIP $$DEBUGFILENAME)
}
-c++11|c++14|c++1z {
+# Disable special compiler flags for host builds (needs to be changed for 5.7
+# to fall back to c++11 because since 5.7 c++11 is required everywhere,
+# including host builds).
+if(!host_build|!cross_compile):if(c++11|c++14|c++1z) {
c++1z: cxxstd = CXX1Z
else: c++14: cxxstd = CXX14
else: cxxstd = CXX11