Imported from libpng-1.2.9beta9.tar
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index 5e3ecf8..1b2d159 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -18,7 +18,7 @@
 
 CC=cc
 AR_RC=ar rc
-MKDIR_P=mkdir
+MKDIR_P=mkdir -p
 LN_SF=ln -sf
 RANLIB=ranlib
 RM_F=/bin/rm -f
@@ -27,7 +27,7 @@
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz
 
 PNGMAJ = 0
-PNGMIN = 1.2.9beta8
+PNGMIN = 1.2.9beta9
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12