diff -ru4NwbB libpng-1.4.11/png.h libpng-1.4.12/png.h
--- libpng-1.4.11/png.h	2012-03-29 00:02:32.727549996 -0500
+++ libpng-1.4.12/png.h	2012-07-09 19:38:21.563699618 -0500
@@ -168,8 +168,9 @@
  *    1.4.10rc01-02           14    10410  14.so.14.10[.0]
  *    1.4.10                  14    10410  14.so.14.10[.0]
  *    1.4.11rc01              14    10411  14.so.14.11[.0]
  *    1.4.11                  14    10411  14.so.14.11[.0]
+ *    1.4.12                  14    10412  14.so.14.12[.0]
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
  *    used for changes in backward compatibility, as it is intended.  The
diff -ru4NwbB libpng-1.4.11/scripts/makefile.freebsd libpng-1.4.12/scripts/makefile.freebsd
--- libpng-1.4.11/scripts/makefile.freebsd	2012-03-29 00:02:35.278286549 -0500
+++ libpng-1.4.12/scripts/makefile.freebsd	2012-07-09 19:38:23.482150407 -0500
@@ -23,9 +23,12 @@
 MAN=		libpng.3 libpngpf.3 png.5
 MANDIR=		/man/man
 SYMLINKS=       libpng/png.h ${INCSDIR}/../png.h \
 		libpng/pngconf.h ${INCSDIR}/../pngconf.h
+
 LDADD+=         -lm -lz
+# LDADD+=         -lm -lz -lssp_nonshared   # for OSVERSION >= 800000 ?
+
 DPADD+=         ${LIBM} ${LIBZ}
 
 CFLAGS+= -I.