Honor CMAKE_INSTALL_BINDIR (#4714)

* Un-hardcode cmake install dirs

* Scoping down to bin > BINDIR only

Author: tristanlabelle

Sources/UUID/CMakeLists.txt

@@ -30,5 +30,5 @@ if(NOT BUILD_SHARED_LIBS)
   install(TARGETS uuid
     ARCHIVE DESTINATION lib/swift_static/$<LOWER_CASE:${CMAKE_SYSTEM_NAME}>
     LIBRARY DESTINATION lib/swift_static/$<LOWER_CASE:${CMAKE_SYSTEM_NAME}>
-    RUNTIME DESTINATION bin)
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
 endif()

cmake/modules/SwiftSupport.cmake

@@ -70,7 +70,7 @@ function(_install_target module)
   install(TARGETS ${module}
     ARCHIVE DESTINATION lib/${swift}/${swift_os}
     LIBRARY DESTINATION lib/${swift}/${swift_os}
-    RUNTIME DESTINATION bin)
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
   if(type STREQUAL EXECUTABLE)
     return()
   endif()