Fixing make install target for MacOS - strip -x is the command to use here.
diff --git a/Makefile b/Makefile
index 6e24724..2baf0d6 100644
--- a/Makefile
+++ b/Makefile
@@ -143,7 +143,15 @@
 LD = $(LD_$(CONFIG))
 LDXX = $(LDXX_$(CONFIG))
 AR = ar
+ifeq ($(SYSTEM),Linux)
 STRIP = strip --strip-unneeded
+else
+ifeq ($(SYSTEM),Darwin)
+STRIP = strip -x
+else
+STRIP = strip
+endif
+endif
 INSTALL = install
 RM = rm -f