Targeting 10.12, using 10.14 SDK due to Catch2

Author: jonoomph

.gitlab-ci.yml

@@ -52,7 +52,7 @@ mac-builder:
     - unzip artifacts.zip
     - export LIBOPENSHOT_AUDIO_DIR=$CI_PROJECT_DIR/build/install-x64
     - mkdir -p build; cd build;
-    - cmake -DCMAKE_EXE_LINKER_FLAGS="-stdlib=libc++" -DCMAKE_SHARED_LINKER_FLAGS="-stdlib=libc++" -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -D"CMAKE_INSTALL_PREFIX:PATH=$CI_PROJECT_DIR/build/install-x64" -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang -D"CMAKE_BUILD_TYPE:STRING=Release" -D"CMAKE_OSX_SYSROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk" -D"CMAKE_OSX_DEPLOYMENT_TARGET=10.9" -DCMAKE_PREFIX_PATH=/usr/local/qt5.15.X/qt5.15/5.15.0/clang_64/ -D"CMAKE_INSTALL_RPATH_USE_LINK_PATH=1" -D"ENABLE_RUBY=0" ../
+    - cmake -DCMAKE_EXE_LINKER_FLAGS="-stdlib=libc++" -DCMAKE_SHARED_LINKER_FLAGS="-stdlib=libc++" -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -D"CMAKE_INSTALL_PREFIX:PATH=$CI_PROJECT_DIR/build/install-x64" -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang -D"CMAKE_BUILD_TYPE:STRING=Release" -D"CMAKE_OSX_SYSROOT=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk" -D"CMAKE_OSX_DEPLOYMENT_TARGET=10.12" -DCMAKE_PREFIX_PATH=/usr/local/qt5.15.X/qt5.15/5.15.0/clang_64/ -D"CMAKE_INSTALL_RPATH_USE_LINK_PATH=1" -D"ENABLE_RUBY=0" ../
     - make -j 9
     - make install
     - PROJECT_VERSION=$(grep -E '^set\(PROJECT_VERSION_FULL "(.*)' ../CMakeLists.txt | awk '{print $2}' | tr -d '")')