diff --git a/Makefile b/Makefile
index efd9555..2394a47 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ VERSION = 1.1
 PREFIX = /usr/local
 MANPREFIX = $(PREFIX)/share/man
 
-CFLAGS += -O3 -march=native -Wall -Wextra -Wno-unused-parameter
+CFLAGS += -O2 -Wall -Wextra -Wno-unused-parameter
 LDLIBS = -lreadline
 
 ifeq ($(shell pkg-config ncursesw && echo 1),1)
@@ -13,7 +13,6 @@ else
 	LDLIBS += -lncurses
 endif
 
-
 DISTFILES = nlay nnn.c config.def.h nnn.1 Makefile README.md LICENSE
 LOCALCONFIG = config.h
 SRC = nnn.c
diff --git a/Makefile.generic b/Makefile.native
similarity index 79%
rename from Makefile.generic
rename to Makefile.native
index c4e8fdd..310f138 100644
--- a/Makefile.generic
+++ b/Makefile.native
@@ -1,14 +1,16 @@
-VERSION = 1.0
+VERSION = 1.1
 
 PREFIX = /usr/local
 MANPREFIX = $(PREFIX)/share/man
 
-CFLAGS += -O2 -Wall -Wextra -Wno-unused-parameter
+CFLAGS += -O3 -march=native -Wall -Wextra -Wno-unused-parameter
 LDLIBS = -lreadline
-ifeq ($(shell uname), Darwin)
-    LDLIBS += -lncurses
+
+ifeq ($(shell pkg-config ncursesw && echo 1),1)
+	CFLAGS += $(shell pkg-config --cflags ncursesw)
+	LDLIBS += $(shell pkg-config --libs   ncursesw)
 else
-    LDLIBS += -lncursesw
+	LDLIBS += -lncurses
 endif
 
 DISTFILES = nlay nnn.c config.def.h nnn.1 Makefile README.md LICENSE
diff --git a/nnn.c b/nnn.c
index 1bd9a67..7d93893 100644
--- a/nnn.c
+++ b/nnn.c
@@ -28,7 +28,9 @@
 #include <wchar.h>
 #include <readline/readline.h>
 
-#define __USE_XOPEN_EXTENDED
+#ifndef __USE_XOPEN_EXTENDED
+#define __USE_XOPEN_EXTENDED 1
+#endif
 #include <ftw.h>
 
 #ifdef DEBUG