[FreeBSD] Get virtual memory limit

Reuse existing implementation, but change the include from sysctl.h to
resource.h - that should still work on other POSIX platforms.

Author: ppenzin

lib/Runtime/PlatformAgnostic/Platform/CMakeLists.txt

@@ -34,6 +34,10 @@ elseif(CC_TARGET_OS_OSX)
     Unix/SystemInfo.cpp
     # Linux/PerfTrace.cpp # TODO : implement for OSX?
     )
+elseif(CC_TARGET_OS_FREEBSD)
+  set(PL_SOURCE_FILES ${PL_SOURCE_FILES}
+    Unix/SystemInfo.cpp
+    )
 endif()
 
 add_library (Chakra.Runtime.PlatformAgnostic OBJECT

lib/Runtime/PlatformAgnostic/Platform/Unix/SystemInfo.cpp

@@ -5,7 +5,7 @@
 
 #include "Common.h"
 #include "ChakraPlatform.h"
-#include <sys/sysctl.h>
+#include <sys/resource.h>
 
 namespace PlatformAgnostic
 {