cleanup pkg-config stuff

png/png.patch

@@ -1,7 +1,7 @@
 Index: pngconf.h
---- pngconf.h.orig	2006-06-27 22:22:34 +0200
-+++ pngconf.h	2006-11-12 12:17:37 +0100
-@@ -313,9 +313,9 @@
+--- pngconf.h.orig	2007-09-08 05:22:56 +0200
++++ pngconf.h	2007-10-13 14:37:04 +0200
+@@ -319,9 +319,9 @@
  #    ifdef _SETJMP_H
       /* If you encounter a compiler error here, see the explanation
        * near the end of INSTALL.
@@ -12,12 +12,25 @@ Index: pngconf.h
  #    endif
  #  endif /* __linux__ */
  
+Index: scripts/libpng.pc-configure.in
+--- scripts/libpng.pc-configure.in.orig	2007-09-08 05:23:01 +0200
++++ scripts/libpng.pc-configure.in	2007-10-13 14:37:04 +0200
+@@ -6,5 +6,6 @@
+ Name: libpng
+ Description: Loads and saves PNG files
+ Version: 1.2.21
+-Libs: -L${libdir} -lpng12
++Libs: -L${libdir} -lpng
++Libs.private: -lz
+ Cflags: -I${includedir} @LIBPNG_NO_MMX@
 Index: scripts/libpng.pc.in
---- scripts/libpng.pc.in.orig	2006-06-27 22:22:40 +0200
-+++ scripts/libpng.pc.in	2006-11-12 12:18:12 +0100
-@@ -7,4 +7,5 @@
+--- scripts/libpng.pc.in.orig	2007-09-08 05:23:01 +0200
++++ scripts/libpng.pc.in	2007-10-13 14:37:04 +0200
+@@ -6,5 +6,6 @@
+ Name: libpng
  Description: Loads and saves PNG files
- Version: 1.2.12
- Libs: -L${libdir} -lpng12
+ Version: 1.2.21
+-Libs: -L${libdir} -lpng12
++Libs: -L${libdir} -lpng
 +Libs.private: -lz
  Cflags: -I${includedir}

png/png.spec

@@ -33,7 +33,7 @@ Class:        BASE
 Group:        Graphics
 License:      BSD
 Version:      1.2.21
-Release:      20071004
+Release:      20071013
 
 #   list of sources
 Source0:      http://switch.dl.sourceforge.net/sourceforge/libpng/libpng-%{version}.tar.gz