travis: Build on OS X

.travis.yml

@@ -5,6 +5,9 @@ matrix:
     - os: linux
       sudo: required
       dist: trusty
+    - os: osx
+      sudo: false
+      osx_image: xcode7.3
 
 addons:
   apt:

.travis/build.sh

@@ -3,6 +3,9 @@
 set -e
 set -x
 
+cmake --version
+
+if [ "$TRAVIS_OS_NAME" = "linux" -o -z "$TRAVIS_OS_NAME" ]; then
     export CC=gcc-6
     export CXX=g++-6
     export PKG_CONFIG_PATH=$HOME/.local/lib/pkgconfig:$PKG_CONFIG_PATH
@@ -12,3 +15,12 @@ cmake .. -DDYNARMIC_USE_SYSTEM_BOOST=0 -DBoost_INCLUDE_DIRS=externals/ext-boost
     make -j4
 
     ctest -VV -C Release
+elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
+    set -o pipefail
+
+    export MACOSX_DEPLOYMENT_TARGET=10.9
+
+    mkdir build && cd build
+    cmake .. -GXcode -DDYNARMIC_USE_SYSTEM_BOOST=0 -DBoost_INCLUDE_DIRS=externals/ext-boost -DDYNARMIC_TESTS=0
+    xcodebuild -configuration Release
+fi

.travis/deps.sh

@@ -3,11 +3,17 @@
 set -e
 set -x
 
-mkdir -p $HOME/.local
-curl -L https://cmake.org/files/v3.4/cmake-3.4.1-Linux-i386.tar.gz \
-    | tar -xz -C $HOME/.local --strip-components=1
-
 # TODO: This isn't ideal.
 cd externals
 git clone https://github.com/citra-emu/ext-boost
 cd ..
+
+if [ "$TRAVIS_OS_NAME" = "linux" -o -z "$TRAVIS_OS_NAME" ]; then
+    mkdir -p $HOME/.local
+    curl -L https://cmake.org/files/v3.4/cmake-3.4.1-Linux-i386.tar.gz \
+        | tar -xz -C $HOME/.local --strip-components=1
+elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
+    brew update > /dev/null # silence the very verbose output
+    brew unlink cmake || true
+    brew install cmake
+fi

src/frontend/arm_types.h

@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <functional>
 #include <string>
 #include <tuple>
 #include <utility>