1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 83418b7..a00ae4c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-NEEDED_CFLAGS := -std=c99 -D_POSIX_C_SOURCE=2
+NEEDED_CFLAGS := -std=c99 -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__
 CFLAGS ?= -g -O2 -W -Wall
 override CFLAGS += $(NEEDED_CFLAGS)
 DESTDIR ?= /usr/local