build: use more global properties

Specify RPATH and POSITION_INDEPENDENT globally rather than on a
per-target basis.

Author: compnerd

CMakeLists.txt

@@ -91,6 +91,11 @@ set(CMAKE_C_VISIBILITY_INLINES_HIDDEN YES)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
 
+set(CMAKE_POSITION_INDEPENDENT_CODE YES)
+if(NOT APPLE)
+  set(CMAKE_INSTALL_RPATH "$ORIGIN")
+endif()
+
 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
 set(THREADS_PREFER_PTHREAD_FLAG TRUE)
 if(ANDROID)

src/CMakeLists.txt

@@ -88,10 +88,6 @@ if(HAVE_OBJC)
     swift/DispatchStubs.cc)
 endif()
 
-
-set_target_properties(dispatch PROPERTIES
-  POSITION_INDEPENDENT_CODE YES)
-
 target_include_directories(dispatch PUBLIC
   ${PROJECT_BINARY_DIR}
   ${PROJECT_SOURCE_DIR}
@@ -171,10 +167,6 @@ if(APPLE)
     "-Xlinker -alias_list -Xlinker ${PROJECT_SOURCE_DIR}/xcodeconfig/libdispatch.aliases")
 endif()
 
-if(NOT APPLE)
-  set_target_properties(dispatch PROPERTIES INSTALL_RPATH "$ORIGIN")
-endif()
-
 if(LINKER_SUPPORTS_BUILD_ID)
   target_link_options(dispatch PRIVATE "LINKER:--build-id=sha1")
 endif()

src/swift/CMakeLists.txt

@@ -3,8 +3,6 @@ if(HAVE_OBJC)
     DispatchStubs.cc)
   target_include_directories(DispatchStubs PRIVATE
     ${PROJECT_SOURCE_DIR})
-  set_target_properties(DispatchStubs PROPERTIES
-    POSITION_INDEPENDENT_CODE YES)
 endif()
 
 add_library(swiftDispatch
@@ -35,7 +33,6 @@ target_link_libraries(swiftDispatch PUBLIC
   dispatch)
 if(NOT DARWIN AND NOT WIN32)
   target_link_options(swiftDispatch PRIVATE "SHELL:-no-toolchain-stdlib-rpath")
-  set_target_properties(swiftDispatch PROPERTIES INSTALL_RPATH "$ORIGIN")
 endif()
 
 set_property(GLOBAL APPEND PROPERTY DISPATCH_EXPORTS swiftDispatch)