[devel] Documented removal of GLOBAL_ARRAY support.

libpng-1.4.0beta79.txt

@@ -2961,7 +2961,7 @@ png.h and pngconf.h into a new pngpriv.h header file.
 
 Support for the iTXt chunk has been enabled by default.
 
-Support for global arrays was disabled by default.
+Support for global arrays was removed.
 
 Some obsolete/deprecated macros and functions have been removed.
 
@@ -3047,7 +3047,10 @@ allocates.
 
 The png_zalloc() and png_zfree() functions are no longer exported.
 
-The png_calloc() function was added.
+The png_calloc() function was added and is used in place of
+of "png_malloc(); png_memset();" except in the case in png_read_png()
+where the array consists of pointers; in this case a "for" loop is used
+after the png_malloc() to set the pointers to NULL.
 
 We removed the trailing '.' from the warning and error messages.
 

libpng.3

@@ -3770,7 +3770,7 @@ png.h and pngconf.h into a new pngpriv.h header file.
 
 Support for the iTXt chunk has been enabled by default.
 
-Support for global arrays was disabled by default.
+Support for global arrays was removed.
 
 Some obsolete/deprecated macros and functions have been removed.
 
@@ -3856,7 +3856,10 @@ allocates.
 
 The png_zalloc() and png_zfree() functions are no longer exported.
 
-The png_calloc() function was added.
+The png_calloc() function was added and is used in place of
+of "png_malloc(); png_memset();" except in the case in png_read_png()
+where the array consists of pointers; in this case a "for" loop is used
+after the png_malloc() to set the pointers to NULL.
 
 We removed the trailing '.' from the warning and error messages.
 

pngconf.h

@@ -1195,6 +1195,8 @@ typedef char            FAR * FAR * FAR * png_charppp;
 #  define PNG_IMPEXP
 #endif
 
+#define PNG_USE_LOCAL_ARRAYS /* Not used in libpng, defined for legacy apps */
+
 /* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall",
  * you may get warnings regarding the linkage of png_zalloc and png_zfree.
  * Don't ignore those warnings; you must also reset the default calling