--- configure.ac-	2012-12-04 05:26:05.820214255 +0000
+++ configure.ac	2012-12-04 05:26:21.686364455 +0000
@@ -24,7 +24,7 @@
 AC_CHECK_FUNCS([gettimeofday localtime_r])
 
 PKG_CHECK_MODULES(FDCLOCK, cairo)
-PKG_CHECK_MODULES(PNG, libpng12)
+PKG_CHECK_MODULES(PNG, libpng)
 
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT