From c5709c0aed02cf7c7c5cda914d9794ac5cab55e7 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Wed, 20 Jan 2021 11:03:34 -0500
Subject: [PATCH] LibCore: Try to fix fuzzer build

This might fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29675
See also `man memfd_create`.
---
 Userland/Libraries/LibCore/AnonymousBuffer.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Userland/Libraries/LibCore/AnonymousBuffer.cpp b/Userland/Libraries/LibCore/AnonymousBuffer.cpp
index d3087363b2..6caeb22e5d 100644
--- a/Userland/Libraries/LibCore/AnonymousBuffer.cpp
+++ b/Userland/Libraries/LibCore/AnonymousBuffer.cpp
@@ -24,6 +24,10 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#if defined(__linux__) && !defined(_GNU_SOURCE)
+#    define _GNU_SOURCE // For memfd_create, MFD_CLOEXEC
+#endif
+
 #include <LibCore/AnonymousBuffer.h>
 #include <LibIPC/Decoder.h>
 #include <LibIPC/Encoder.h>