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From a33d2ca97d119ef657207fc27248db4c3103531f Mon Sep 17 00:00:00 2001
From: Thibaut Sautereau <thibaut@sautereau.fr>
Date: Tue, 2 Nov 2021 20:22:05 +0100
Subject: [PATCH] Fix CPPFLAGS in test Makefile
In particular, the _GNU_SOURCE feature test macro needs to be set in
order to correctly define mmap(2) flags such as MAP_ANONYMOUS.
Otherwise, compilation of some test files fails when CPPFLAGS is not
defined in the initial user environment, as Make then does not export it
from the root Makefile to the sub-make.
---
test/simple-memory-corruption/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/test/simple-memory-corruption/Makefile b/test/simple-memory-corruption/Makefile
index 609677e7e670..d217b4806565 100644
--- a/test/simple-memory-corruption/Makefile
+++ b/test/simple-memory-corruption/Makefile
@@ -6,7 +6,8 @@ ifeq (,$(filter $(CONFIG_SLAB_CANARY),true false))
$(error CONFIG_SLAB_CANARY must be true or false)
endif
-CFLAGS += -DSLAB_CANARY=$(CONFIG_SLAB_CANARY)
+CPPFLAGS += -D_GNU_SOURCE \
+ -DSLAB_CANARY=$(CONFIG_SLAB_CANARY)
LDLIBS := -lhardened_malloc
--
2.33.1
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