CI: Remove explicit LANGUAGE flags for cmake 3.19+

libobs-opengl/CMakeLists.txt

@@ -16,10 +16,6 @@ elseif(APPLE)
 	set(libobs-opengl_PLATFORM_SOURCES
 		gl-cocoa.m)
 
-	set_source_files_properties(${libobs-opengl_PLATFORM_SOURCES}
-		PROPERTIES
-			LANGUAGE C)
-
 	find_library(COCOA Cocoa)
 	include_directories(${COCOA})
 	mark_as_advanced(COCOA)

libobs/CMakeLists.txt

@@ -143,7 +143,6 @@ elseif(APPLE)
 
 	set_source_files_properties(${libobs_PLATFORM_SOURCES}
 		PROPERTIES
-			LANGUAGE C
 			COMPILE_FLAGS "-fobjc-arc")
 
 	find_library(COCOA Cocoa)

plugins/mac-capture/CMakeLists.txt

@@ -24,11 +24,6 @@ set(mac-capture_SOURCES
 	mac-window-capture.m
 	window-utils.m)
 
-set_source_files_properties(mac-display-capture.m
-			    mac-window-capture.m
-			    window-utils.m
-	PROPERTIES LANGUAGE C)
-
 add_library(mac-capture MODULE
 	${mac-capture_SOURCES}
 	${mac-capture_HEADERS})

plugins/mac-syphon/CMakeLists.txt

@@ -65,9 +65,6 @@ set(mac-syphon_SOURCES
 	syphon.m
 	plugin-main.c)
 
-set_source_files_properties(${mac-syphon_SOURCES} ${syphon_SOURCES}
-	PROPERTIES LANGUAGE C)
-
 add_definitions(-DSYPHON_UNIQUE_CLASS_NAME_PREFIX=OBS_ -include
 	${PROJECT_SOURCE_DIR}/syphon-framework/Syphon_Prefix.pch)
 

plugins/text-freetype2/CMakeLists.txt

@@ -42,9 +42,6 @@ elseif(APPLE)
 	set(text-freetype2_PLATFORM_DEPS
 		${COCOA}
 		${ICONV_LIBRARIES})
-
-	set_source_files_properties(find-font-cocoa.m
-		PROPERTIES LANGUAGE C)
 else()
 	find_package(Fontconfig QUIET)
 	if(NOT FONTCONFIG_FOUND AND ENABLE_FREETYPE)