[PATCH v2] travis-ci: enable more warnings on travis linux-gcc job

From: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date: Mar 16, 2018, 19:33 UTC
Message-ID: <20180316193355.20161-1-pclouds@gmail.com>
In-Reply-To: <20180303014605.10603-1-pclouds@gmail.com>

We have DEVELOPER config to enable more warnings, but since we can't set a fixed gcc version to all devs, that has to be a bit more conservative. On travis, we know almost exact version to be used (bumped to 6.x for more warnings), we could be more aggressive.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 I still think it's a good thing to do. So here's the rebased version
 (v1 collides badly with another series, which has landed)

 .travis.yml               |  3 +++
 ci/run-build-and-tests.sh | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 5f5ee4f3bd..0b3c50f5e7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,10 +16,13 @@ compiler:
 
 addons:
   apt:
+    sources:
+    - ubuntu-toolchain-r-test
     packages:
     - language-pack-is
     - git-svn
     - apache2
+    - gcc-6
 
 matrix:
   include:
diff --git a/ci/run-build-and-tests.sh b/ci/run-build-and-tests.sh
index 3735ce413f..f6f346c468 100755
--- a/ci/run-build-and-tests.sh
+++ b/ci/run-build-and-tests.sh
@@ -7,6 +7,22 @@
 
 ln -s "$cache_dir/.prove" t/.prove
 
+if [ "$jobname" = linux-gcc ]; then
+	gcc-6 --version
+	cat >config.mak <<-EOF
+	CC=gcc-6
+	CFLAGS = -g -O2 -Wall
+	CFLAGS += -Wextra
+	CFLAGS += -Wmissing-prototypes
+	CFLAGS += -Wno-empty-body
+	CFLAGS += -Wno-maybe-uninitialized
+	CFLAGS += -Wno-missing-field-initializers
+	CFLAGS += -Wno-sign-compare
+	CFLAGS += -Wno-unused-function
+	CFLAGS += -Wno-unused-parameter
+	EOF
+fi
+
 make --jobs=2
 make --quiet test
 if test "$jobname" = "linux-gcc"

-- 
2.16.2.903.gd04caf5039