diff -urN gthumb-2.12.0/configure.ac ../SUNWgnome-img-organizer-2.12.0.hacked/gthumb-2.12.0/configure.ac
--- gthumb-2.12.0/configure.ac 2011-02-23 14:59:41.812299693 +0000
+++ ../SUNWgnome-img-organizer-2.12.0.hacked/gthumb-2.12.0/configure.ac 2011-02-23 15:00:57.614966924 +0000
@@ -137,7 +137,7 @@
gtk+-2.0 >= $GTK_REQUIRED
gconf-2.0 >= $GCONF_REQUIRED
unique-1.0 >= $UNIQUE_REQUIRED
- libpng
+ libpng12
])
AC_SUBST(GTHUMB_LIBS)
AC_SUBST(GTHUMB_CFLAGS)