[cmake] Use default build rpath

nekotools boot will already use neko from the build directory as long as
CMAKE_SKIP_BUILD_RPATH is false

No need to set LD_LIBRARY_PATH either, as rpath is set already.

CMakeLists.txt

@@ -164,13 +164,12 @@ endforeach()
 include(ExternalProject)
 
 
-# CMAKE_BUILD_WITH_INSTALL_RPATH should be set to true.
+# CMAKE_SKIP_BUILD_RPATH should be set to false.
 # It is because `nekotools boot` will use the neko in build dir during build.
-set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
+set(CMAKE_SKIP_BUILD_RPATH FALSE)
 
 if (RELOCATABLE)
 	# https://cmake.org/Wiki/CMake_RPATH_handling
-	set(CMAKE_SKIP_BUILD_RPATH FALSE)
 	set(CMAKE_SKIP_INSTALL_RPATH FALSE)
 	if(APPLE)
 		set(CMAKE_MACOSX_RPATH TRUE)
@@ -394,12 +393,9 @@ set_target_properties(libneko
 if (CMAKE_HOST_WIN32)
 	set(set_neko_env set NEKOPATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
 	set(neko_exec $<TARGET_FILE:nekovm>)
-elseif(CMAKE_HOST_APPLE)
-	set(set_neko_env "")
-	set(neko_exec DYLD_FALLBACK_LIBRARY_PATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} NEKOPATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} $<TARGET_FILE:nekovm>)
 else()
 	set(set_neko_env "")
-	set(neko_exec LD_LIBRARY_PATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} NEKOPATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} $<TARGET_FILE:nekovm>)
+	set(neko_exec NEKOPATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} $<TARGET_FILE:nekovm>)
 endif()
 
 file(GLOB compilers_src
@@ -803,26 +799,13 @@ if (WITH_NEKOML)
 		COMMAND nekoml
 		WORKING_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
 	)
-
-	set_tests_properties(nekoml
-		PROPERTIES
-		ENVIRONMENT LD_LIBRARY_PATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-	)
 endif()
 
 add_test(NAME nekotools
 	COMMAND nekotools
 	WORKING_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
 )
 
-if (UNIX AND NOT APPLE)
-	set_tests_properties(-version test.n nekoc nekotools
-		PROPERTIES
-		ENVIRONMENT LD_LIBRARY_PATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-	)
-endif()
-
-
 #######################
 
 # debian source packages