--- g++-unix.conf	2015-02-16 12:35:34.978050836 +0200
+++ qtbase-opensource-src-5.4.0/mkspecs/common/g++-unix.conf	2015-02-16 12:35:58.703051378 +0200
@@ -10,5 +10,5 @@
 
 include(g++-base.conf)
 
-QMAKE_LFLAGS_RELEASE   += -Wl,-O1
+QMAKE_LFLAGS_RELEASE += PISILINUX_LDFLAGS
 QMAKE_LFLAGS_NOUNDEF   += -Wl,--no-undefined
