ensure build with old linux-qt5 hints

diff --git a/sys/unix/hints/linux-qt5 b/sys/unix/hints/linux-qt5
index 945384bafd84ec06887a5027be350bd4668e92ee..8bfbb0252c7f68218977264072228d97caaf554d 100644 (file)
--- a/sys/unix/hints/linux-qt5
+++ b/sys/unix/hints/linux-qt5
@@ -38,6 +38,8 @@ SYSCFLAGS=-DLUA_USE_POSIX
 LINK=g++
 CXX=g++ -std=gnu++11
 
+QTCXXFLAGS = $(CFLAGS)
+
 WINSRC = $(WINQTSRC)
 WINOBJ = $(WINQTOBJ)
 WINLIB = $(WINQT5LIB)