diff --git a/general/package/libevent-openipc/libevent-openipc.mk b/general/package/libevent-openipc/libevent-openipc.mk
index f1f8b15d..473dde17 100644
--- a/general/package/libevent-openipc/libevent-openipc.mk
+++ b/general/package/libevent-openipc/libevent-openipc.mk
@@ -10,11 +10,17 @@ LIBEVENT_OPENIPC_INSTALL_STAGING = YES
 LIBEVENT_OPENIPC_LICENSE = BSD-3-Clause, OpenBSD
 LIBEVENT_OPENIPC_LICENSE_FILES = LICENSE
 LIBEVENT_OPENIPC_CONF_OPTS = \
+	-D_GNU_SOURCE=ON \
 	-DEVENT__DISABLE_BENCHMARK=ON \
 	-DEVENT__DISABLE_SAMPLES=ON \
 	-DEVENT__DISABLE_TESTS=ON \
 	-DCMAKE_BUILD_TYPE=Release
 
+define LIBEVENT_OPENIPC_PATCH_MMAH_H
+	sed -i 's/#define mmap64 mmap/void *mmap64 (void *, size_t, int, int, int, off_t);/' $(STAGING_DIR)/usr/include/sys/mman.h
+endef
+
+LIBEVENT_OPENIPC_PRE_BUILD_HOOKS += LIBEVENT_OPENIPC_PATCH_MMAH_H
 
 define LIBEVENT_OPENIPC_REMOVE_PYSCRIPT
 	rm $(TARGET_DIR)/usr/bin/event_rpcgen.py