diff --git a/Makefile b/Makefile
index a0b5438..53955ac 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,6 @@
-tests : libstrops.a libstrops.so
+.POSIX :
+
+tests : libstrops.a libstrops.so strops.h
 	gcc -ansi -I . -L. -o tests tests.c -Wl,-Bstatic -lstrops -Wl,-Bdynamic
 #	gcc -ansi -I . -L. -o tests tests.c -lstrops
 
@@ -8,6 +10,18 @@ libstrops.so : strops.o
 libstrops.a : strops.o
 	ar cr libstrops.a strops.o
 
-strops.o : strops.c strops.h
-	gcc -c -fPIC -ansi -ggdb -o strops.o strops.c
-#	gcc -c -ansi -O2 -pipe -o strops.o strops.c
+strops.o : strops.c
+#	gcc -c -fPIC -ansi -ggdb -o strops.o strops.c
+	gcc -c -ansi -O2 -pipe -o strops.o strops.c
+
+.PHONY : install uninstall
+
+install: libstrops.a libstrops.so strops.h
+	sudo mv libstrops.a /usr/local/lib
+	sudo mv libstrops.so /usr/local/lib
+	sudo cp strops.h /usr/local/include
+
+uninstall:
+	sudo rm /usr/local/lib/libstrops.a
+	sudo rm /usr/local/lib/libstrops.so
+	sudo rm /usr/local/include/strops.h