Fix rpmalloc debug build with GCC < 5

LMMS · Nov 25, 2017 · 46ef3c6 · 46ef3c6
1 parent c6ae1dc
commit 46ef3c6
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/3rdparty/rpmalloc/CMakeLists.txt b/src/3rdparty/rpmalloc/CMakeLists.txt
@@ -16,8 +16,15 @@ if (NOT LMMS_BUILD_WIN32)
 endif()
 
 if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+	# rpmalloc uses GCC builtin "__builtin_umull_overflow" with ENABLE_VALIDATE_ARGS,
+	# which is only available starting with GCC 5
+	if (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_LESS 5)
+		set(ENABLE_VALIDATE_ARGS OFF)
+	else ()
+		set(ENABLE_VALIDATE_ARGS ON)
+	endif()
 	target_compile_definitions(rpmalloc
-		PRIVATE -DENABLE_ASSERTS=1 -DENABLE_VALIDATE_ARGS=1
+		PRIVATE -DENABLE_ASSERTS=1 -DENABLE_VALIDATE_ARGS=${ENABLE_VALIDATE_ARGS}
 	)
 endif()