Add an OSX build that doesn't run tests.

This one is not allowed to fail and ensures that toxcore can at least be
built for OSX.

.travis.yml

@@ -2,15 +2,20 @@ language: c
 
 matrix:
   include:
+    # OSX build comes first because Travis queues builds in order. The OSX
+    # builds are often pushed on a very long (100-200 jobs) backlog, so they get
+    # highest priority in our build sequence.
+    - env: JOB=toxcore ENV=osx RUN_TESTS=false
+      os: osx
+    - env: JOB=toxcore ENV=osx RUN_TESTS=true
+      os: osx
     - env: JOB=hstox ENV=linux
       language: haskell
       ghc: 7.8
     - env: JOB=autotools ENV=linux
       compiler: gcc
     - env: JOB=toxcore ENV=linux
       compiler: clang
-    - env: JOB=toxcore ENV=osx
-      os: osx
     - env: JOB=toxcore ENV=windows ARCH=i686
       services:
         - docker
@@ -19,7 +24,7 @@ matrix:
         - docker
   fast_finish: true
   allow_failures:
-    - os: osx
+    - env: JOB=toxcore ENV=osx RUN_TESTS=true
 
 addons:
   apt:

other/travis/env-linux.sh

@@ -4,6 +4,7 @@ CMAKE=cmake
 CMAKE_EXTRA_FLAGS="$CMAKE_EXTRA_FLAGS -DFORMAT_TEST=ON"
 NPROC=`nproc`
 CURDIR=$PWD
+RUN_TESTS=true
 
 RUN() {
   "$@"

other/travis/env-windows.sh

@@ -4,13 +4,12 @@ CMAKE=$ARCH-w64-mingw32.shared-cmake
 CMAKE_EXTRA_FLAGS="$CMAKE_EXTRA_FLAGS -DBOOTSTRAP_DAEMON=OFF -DCOMPILE_AS_CXX=ON"
 NPROC=`nproc`
 CURDIR=/work
+RUN_TESTS=false
 
 RUN() {
   ./dockcross "$@"
 }
 
-ENABLE_WINDOWS_TESTS=false
-
 TESTS() {
   # Download Microsoft DLLs.
   curl http://www.dlldump.com/dllfiles/I/iphlpapi.dll -o _build/iphlpapi.dll
@@ -20,10 +19,8 @@ TESTS() {
   ./dockcross sh -c 'cp $WINEDLLPATH/*.dll _build'
 
   # Run tests in docker.
-  if $ENABLE_WINDOWS_TESTS; then
-    ./dockcross "$@" || {
-      cat _build/Testing/Temporary/LastTest.log
-      false
-    }
-  fi
+  ./dockcross "$@" || {
+    cat _build/Testing/Temporary/LastTest.log
+    false
+  }
 }

other/travis/toxcore-script

@@ -37,4 +37,6 @@ RUN $CMAKE                                      \
 export CTEST_OUTPUT_ON_FAILURE=1
 
 RUN make -C$BUILD_DIR -j$NPROC -k install
-TESTS make -C$BUILD_DIR -j$NPROC test
+if $RUN_TESTS; then
+  TESTS make -C$BUILD_DIR -j$NPROC test
+fi