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JTPALMER / Alien-SDL-1.439_1 / patches / SDL_image-1.2.10-libpng-flags.patch 
--- SDL_image-1.2.10/configure	Thu Nov 12 06:42:10 2009
+++ SDL_image-1.2.10/configure	Wed Feb  2 14:35:00 2011
@@ -13554,7 +13554,7 @@
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-lpng -lz $LIBS"
+LIBS="$LIBPNG_LIBS -lz $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -13757,7 +13757,7 @@
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-lpng -lz $LIBS"
+LIBS="$LIBPNG_LIBS -lz $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -14192,7 +14192,7 @@
 _ACEOF
 
     else
-        IMG_LIBS="-lpng -lz $IMG_LIBS"
+        IMG_LIBS="$LIBPNG_LIBS -lz $IMG_LIBS"
     fi
 fi