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-rw-r--r--termbox/makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/termbox/makefile b/termbox/makefile
index f6a4fe74..3ee05b69 100644
--- a/termbox/makefile
+++ b/termbox/makefile
@@ -1,4 +1,4 @@
-CFLAGS=-O3 -Wall -Wextra -D_XOPEN_SOURCE
+CFLAGS=-O3 -Wall -Wextra
 
 libtermbox.a: utf8.o termbox.o
 	ar rcs libtermbox.a *.o