deps/scripting: Add python rpaths to the obs binary on OSX

Closes jp9000/obs-studio#1127

CI/before-script-osx.sh

@@ -3,4 +3,4 @@ export PATH=/usr/local/opt/ccache/libexec:$PATH
 
 mkdir build
 cd build
-cmake -DENABLE_SPARKLE_UPDATER=ON -DCMAKE_OSX_DEPLOYMENT_TARGET=10.10 -DDepsPath=/tmp/obsdeps -DVLCPath=$PWD/../../vlc-master -DBUILD_BROWSER=ON -DCEF_ROOT_DIR=$PWD/../../cef_binary_${CEF_BUILD_VERSION}_macosx64 ..
+cmake -DPYTHON_LIBRARY=/usr/local/Cellar/python3/3.6.4/Frameworks/Python.framework/Versions/3.6/lib/libpython3.6.dylib -DPYTHON_INCLUDE_DIR=/usr/local/Cellar/python3/3.6.4/Frameworks/Python.framework/Versions/3.6/include/python3.6m -DENABLE_SPARKLE_UPDATER=ON -DCMAKE_OSX_DEPLOYMENT_TARGET=10.10 -DDepsPath=/tmp/obsdeps -DVLCPath=$PWD/../../vlc-master -DBUILD_BROWSER=ON -DCEF_ROOT_DIR=$PWD/../../cef_binary_${CEF_BUILD_VERSION}_macosx64 ..

CI/install-dependencies-osx.sh

@@ -17,7 +17,7 @@ sudo installer -pkg ./Packages.pkg -target /
 brew update
 
 #Base OBS Deps and ccache
-brew install qt5 jack speexdsp ccache
+brew install qt5 jack speexdsp ccache python3
 
 export PATH=/usr/local/opt/ccache/libexec:$PATH
 ccache -s || echo "CCache is not available."

UI/CMakeLists.txt

@@ -270,6 +270,17 @@ target_link_libraries(obs
 	${LIBCURL_LIBRARIES}
 	${obs_PLATFORM_LIBRARIES})
 
+if (APPLE)
+	set_property(
+		TARGET obs
+		APPEND
+		PROPERTY INSTALL_RPATH
+		"/usr/local/Cellar/python3/3.6.4/Frameworks/Python.framework/Versions/3.6/lib/"
+		"/Library/Frameworks/Python.framework/Versions/3.6/lib/"
+		"/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/"
+	)
+endif()
+
 define_graphic_modules(obs)
 
 install_obs_core(obs)