fix build when sanitizers are enabled and jemalloc is disabled

Summary: Add preprocessor checks to guard jemalloc headers if any sanitizer is enabled.

Reviewed By: yfeldblum

Differential Revision: D6441578

fbshipit-source-id: 85364fca5af33c95cd05f232d1e3f9cbac9a4120

folly/experimental/JemallocNodumpAllocator.h

@@ -18,9 +18,10 @@
 
 #pragma once
 
+#include <folly/CPortability.h>
 #include <folly/portability/Config.h>
 
-#ifdef FOLLY_HAVE_LIBJEMALLOC
+#if defined(FOLLY_HAVE_LIBJEMALLOC) && !defined(FOLLY_SANITIZE)
 
 #include <folly/portability/SysMman.h>
 #include <jemalloc/jemalloc.h>

folly/memory/test/MallctlHelperTest.cpp

@@ -15,11 +15,12 @@
  */
 
 #include <folly/memory/MallctlHelper.h>
+#include <folly/CPortability.h>
 #include <folly/init/Init.h>
 #include <folly/memory/Malloc.h>
 #include <folly/portability/GTest.h>
 
-#ifdef FOLLY_HAVE_LIBJEMALLOC
+#if defined(FOLLY_HAVE_LIBJEMALLOC) && !defined(FOLLY_SANITIZE)
 #include <jemalloc/jemalloc.h>
 #endif