From 7214f83b35aceb2ca0a4a3bac61f0ba9f888ec7c Mon Sep 17 00:00:00 2001
From: Stephan Bergmann <sbergman@redhat.com>
Date: Mon, 18 Apr 2016 16:17:31 +0200
Subject: Enable further GCC 6 warnings

...not already automatically enabled through the existing -W switches.
The set is assembled from information in
<https://gnu.wildebeest.org/blog/mjw/2016/02/15/looking-forward-to-gcc6-many-new-warnings/>.
All issues found have already been fixed with earlier commits.

Change-Id: I1abb6ba3a12c0ffb2756d06476e395b24e596f8e
Reviewed-on: https://gerrit.libreoffice.org/24219
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>
---
 solenv/gbuild/platform/com_GCC_defs.mk | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'solenv')

diff --git a/solenv/gbuild/platform/com_GCC_defs.mk b/solenv/gbuild/platform/com_GCC_defs.mk
index 9d88dfc4bdb0..f23705b3561a 100644
--- a/solenv/gbuild/platform/com_GCC_defs.mk
+++ b/solenv/gbuild/platform/com_GCC_defs.mk
@@ -87,6 +87,20 @@ gb_LinkTarget_LDFLAGS += -fprofile-arcs -lgcov
 gb_COMPILEROPTFLAGS := -O0
 endif
 
+ifeq ($(shell expr '$(GCC_VERSION)' '>=' 600),1)
+gb_CFLAGS_COMMON += \
+    -Wduplicated-cond \
+    -Wlogical-op \
+    -Wnull-dereference \
+    -Wshift-overflow=2
+gb_CXXFLAGS_COMMON += \
+    -Wduplicated-cond \
+    -Wlogical-op \
+    -Wnull-dereference \
+    -Wshift-overflow=2 \
+    -Wunused-const-variable=1
+endif
+
 
 ifeq ($(HAVE_GCC_VISIBILITY_FEATURE),TRUE)
 gb_VISIBILITY_FLAGS := -DHAVE_GCC_VISIBILITY_FEATURE
-- 
cgit