chore: Add macOS build.

.github/settings.yml

@@ -13,6 +13,7 @@ branches:
       required_status_checks:
         contexts:
           - build-bootstrapd-docker
+          - build-macos
           - build-nacl
           - build-win32
           - build-win64

.github/workflows/ci.yml

@@ -44,3 +44,10 @@ jobs:
       - uses: actions/checkout@v2
       - name: Build on FreeBSD
         run: .travis/cmake-freebsd-stage2
+
+  build-macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build and test
+        run: .travis/cmake-osx

.travis/cmake-osx

@@ -1,21 +1,16 @@
 #!/bin/bash
 
-ACTION="$1"
-
 set -eu
 
 CACHEDIR="$HOME/cache"
 NPROC=$(sysctl -n hw.physicalcpu)
 
-travis_install() {
 # Workaround for bug in Homebrew where it only finds an old Ruby version.
 brew update
 
-  brew install libsodium libvpx opus libconfig
+brew install libconfig libsodium libvpx opus
-}
 
-travis_script() {
+. ".travis/flags-clang.sh"
-  . ".travis/flags-$CC.sh"
 
 add_ld_flag -undefined error
 
@@ -40,10 +35,3 @@ travis_script() {
 make "-j$NPROC" test ARGS="-j50" ||
   make "-j$NPROC" test ARGS="-j50 --rerun-failed" CTEST_OUTPUT_ON_FAILURE=1
 cd - # popd
-}
-
-if [ "-z" "$ACTION" ]; then
-  "travis_script"
-else
-  "travis_$ACTION"
-fi