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-rw-r--r--test/signal/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/signal/Makefile b/test/signal/Makefile
index 68b31e75e..aa462276d 100644
--- a/test/signal/Makefile
+++ b/test/signal/Makefile
@@ -1,6 +1,7 @@
TESTDIR=../
include $(TESTDIR)/Rules.mak
+CFLAGS += -D_GNU_SOURCE
TARGETS=signal signal_glibc
all: $(TARGETS)