try without -std=gnu++11

diff --git a/configure.ac b/configure.ac
index 417f8aa4d2404c15ca488c1a17bb3b248e9da941..b12fe3be86352bd838a4e90b1edc1915473cc86a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2337,7 +2337,8 @@ else
     PKG_CHECK_MODULES(QTCORE, [Qt5Core],[
       PKG_CHECK_MODULES(QTGUI, [Qt5Widgets Qt5PrintSupport],[
   # required for linking with QT
-  CPPFLAGS="${CPPFLAGS} -fPIE -fPIC -std=gnu++11"
+#  CPPFLAGS="${CPPFLAGS} -fPIE -fPIC -std=gnu++11"
+  CPPFLAGS="${CPPFLAGS} -fPIE -fPIC"
        use_qt="Yes"
       ],[
         use_qt="No (QtGui not available)"