CMake: Define _ISOC11_SOURCE for glibc

This is required to expose aligned_alloc.
arx · Jul 25, 2016 · 6cb8d79 · 6cb8d79
1 parent 442ba4a
commit 6cb8d79
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -540,7 +540,7 @@ else(MSVC)
 	# Define _POSIX_C_SOURCE and _XOPEN_SOURCE for GNU systems
 	if(CMAKE_SYSTEM_NAME MATCHES "Linux" OR CMAKE_SYSTEM_NAME MATCHES "GNU"
 	   OR CMAKE_SYSTEM_NAME MATCHES "kFreeBSD")
-		set(CMAKE_REQUIRED_DEFINITIONS "-D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=600")
+		set(CMAKE_REQUIRED_DEFINITIONS "-D_ISOC11_SOURCE -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=600")
 		add_definitions(-D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=600)
 		if(CMAKE_SYSTEM_NAME MATCHES "kFreeBSD")
 			set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D_BSD_SOURCE")