Travis: build matrix improvements + CPP11 build

.travis.yml

@@ -1,14 +1,4 @@
 language: cpp
-compiler:
-  - gcc
-  - clang
-os:
-  - osx
-  - linux
-env:
-  - PLATFORM=Win32
-  - PLATFORM=Win64
-  - PLATFORM=Unix
 before_install: ./util/travis/before_install.sh
 script: ./util/travis/script.sh
 sudo: required
@@ -16,14 +6,26 @@ notifications:
   email: false
 matrix:
   fast_finish: true
-  exclude:
+  include:
     - env: PLATFORM=Win32
-      compiler: clang
+      compiler: gcc
+      os: linux
     - env: PLATFORM=Win64
+      compiler: gcc
+      os: linux
+    - env: PLATFORM=Unix COMPILER=clang
       compiler: clang
-    - env: PLATFORM=Win32
-      os: osx
-    - env: PLATFORM=Win64
-      os: osx
-    - compiler: gcc
       os: osx
+    - env: PLATFORM=Unix COMPILER=g++
+      compiler: gcc
+      os: linux
+    - env: PLATFORM=Unix COMPILER=clang
+      compiler: clang
+      os: linux
+    - env: PLATFORM=Unix COMPILER=g++-6
+      compiler: gcc
+      os: linux
+addons:
+  apt:
+    sources: &sources
+      - ubuntu-toolchain-r-test

src/unittest/test_settings.cpp

@@ -32,7 +32,7 @@ public:
 	void testAllSettings();
 
 	static const char *config_text_before;
-	static const char *config_text_after;
+	static const std::string config_text_after;
 };
 
 static TestSettings g_test_instance;
@@ -69,7 +69,7 @@ const char *TestSettings::config_text_before =
 	"np_terrain = 5, 40, (250, 250, 250), 12341, 5, 0.7, 2.4\n"
 	"zoop = true";
 
-const char *TestSettings::config_text_after =
+const std::string TestSettings::config_text_after =
 	"leet = 1337\n"
 	"leetleet = 13371337\n"
 	"leetleet_neg = -13371337\n"
@@ -197,7 +197,10 @@ void TestSettings::testAllSettings()
 	UASSERT(s.updateConfigObject(is, os, "", 0) == true);
 	//printf(">>>> expected config:\n%s\n", TEST_CONFIG_TEXT_AFTER);
 	//printf(">>>> actual config:\n%s\n", os.str().c_str());
+#if __cplusplus < 201103L
+	// This test only works in older C++ versions than C++11 because we use unordered_map
 	UASSERT(os.str() == config_text_after);
+#endif
 	} catch (SettingNotFoundException &e) {
 		UASSERT(!"Setting not found!");
 	}

src/unittest/test_threading.cpp

@@ -163,6 +163,7 @@ private:
 void TestThreading::testAtomicSemaphoreThread()
 {
 	Atomic<u32> val;
+	val = 0;
 	Semaphore trigger;
 	static const u8 num_threads = 4;
 

util/travis/before_install.sh

@@ -1,16 +1,8 @@
 #!/bin/bash -e
 
 if [[ $TRAVIS_OS_NAME == "linux" ]]; then
-	if [[ $CC == "clang" ]]; then
-		export PATH="/usr/bin/:$PATH"
-		sudo sh -c 'echo "deb http://ppa.launchpad.net/eudoxos/llvm-3.1/ubuntu precise main" >> /etc/apt/sources.list'
-		sudo apt-key adv --keyserver pool.sks-keyservers.net --recv-keys 92DE8183
-		sudo apt-get update
-		sudo apt-get install llvm-3.1
-		sudo apt-get install clang
-	fi
 	sudo apt-get update
-	sudo apt-get install p7zip-full
+	sudo apt-get install p7zip-full $COMPILER
 fi
 
 if [[ $PLATFORM == "Unix" ]]; then

util/travis/script.sh

@@ -4,6 +4,10 @@ if [[ $PLATFORM == "Unix" ]]; then
 	mkdir -p travisbuild
 	cd travisbuild || exit 1
 	CMAKE_FLAGS=''
+	if [[ $COMPILER == "g++-6" ]]; then
+		export CC=gcc-6
+		export CXX=g++-6
+	fi
 	# Clang builds with FreeType fail on Travis
 	if [[ $CC == "clang" ]]; then
 		CMAKE_FLAGS+=' -DENABLE_FREETYPE=FALSE'