[libpng16] Fixed typo in png.h #ifdef

ANNOUNCE

@@ -622,6 +622,7 @@ Version 1.6.0rc07 [February 10, 2013]
     block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly.
 
 Version 1.6.0rc08 [February 10, 2013]
+  Fix typo in png.h #ifdef
 
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CHANGES

@@ -4376,6 +4376,7 @@ Version 1.6.0rc07 [February 10, 2013]
     block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly.
 
 Version 1.6.0rc08 [February 10, 2013]
+  Fix typo in png.h #ifdef
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

png.h

@@ -3199,12 +3199,10 @@ PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file,
  *  END OF SIMPLIFIED API
  ******************************************************************************/
 
-#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
-    defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)
+#if defined(PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED)
 PNG_EXPORT(242, void, png_set_check_for_invalid_index,
     (png_structrp png_ptr, int allowed));
-#if defined(PNG_READ_GET_PALETTE_MAX_SUPPORTED) || \
-    defined(PNG_READ_GET_PALETTE_MAX_SUPPORTED)
+#if defined(PNG_GET_PALETTE_MAX_SUPPORTED)
 PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr,
     png_const_infop info_ptr));
 #endif

scripts/pnglibconf.dfa

@@ -780,8 +780,8 @@ option WRITE_CHECK_FOR_INVALID_INDEX requires WRITE CHECK_FOR_INVALID_INDEX
 # added at libpng-1.5.15
 option GET_PALETTE_MAX enables READ_GET_PALETTE_MAX
 option GET_PALETTE_MAX enables WRITE_GET_PALETTE_MAX
-option READ_GET_PALETTE_MAX requires CHECK_FOR_INVALID_INDEX
-option WRITE_GET_PALETTE_MAX requires CHECK_FOR_INVALID_INDEX
+option READ_GET_PALETTE_MAX requires READ_CHECK_FOR_INVALID_INDEX
+option WRITE_GET_PALETTE_MAX requires WRITE_CHECK_FOR_INVALID_INDEX
 
 # Simplified API options (added at libpng-1.6.0)
 # Read: