[devel] Imported from libpng-1.4.0beta94.tar

17ca3403 · Glenn Randers-Pehrson · 44db6e39 · 17ca3403 · 17ca3403 · 17ca3403
30 changed file
--- a/INSTALL
+++ b/INSTALL

-Installing libpng version 1.4.0beta94 - November 7, 2009
+Installing libpng version 1.4.0beta94 - November 9, 2009

 On Unix/Linux and similar systems, you can simply type


--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@ this sentence.

 This code is released under the libpng license.

-libpng versions 1.2.6, August 15, 2004, through 1.4.0beta94, November 7, 2009, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.0beta94, November 9, 2009, are
 Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-November 7, 2009
+November 9, 2009
--- a/README
+++ b/README
-README for libpng version 1.4.0beta94 - November 7, 2009 (shared library 14.0)
+README for libpng version 1.4.0beta94 - November 9, 2009 (shared library 14.0)
 See the note about version numbers near the top of png.h

 See INSTALL for instructions on how to install libpng.

--- a/example.c
+++ b/example.c
@@ -2,7 +2,7 @@
 #if 0 /* in case someone actually tries to compile this */

 /* example.c - an example of using libpng
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * This file has been placed in the public domain by the authors.
 * Maintained 1998-2009 Glenn Randers-Pehrson
 * Maintained 1996, 1997 Andreas Dilger)

--- a/libpng-1.4.0beta94.txt
+++ b/libpng-1.4.0beta94.txt
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.4.0beta94 - November 7, 2009
+ libpng version 1.4.0beta94 - November 9, 2009
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
 Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@ libpng.txt - A description on how to use and modify libpng

 Based on:

- libpng versions 0.97, January 1998, through 1.4.0beta94 - November 7, 2009
+ libpng versions 0.97, January 1998, through 1.4.0beta94 - November 9, 2009
 Updated and distributed by Glenn Randers-Pehrson
 Copyright (c) 1998-2009 Glenn Randers-Pehrson

@@ -3227,7 +3227,7 @@ source.

 XIII. Y2K Compliance in libpng

-November 7, 2009
+November 9, 2009

 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.

--- a/libpng.3
+++ b/libpng.3
-.TH LIBPNG 3 "November 7, 2009"
+.TH LIBPNG 3 "November 9, 2009"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta94
 .SH SYNOPSIS
@@ -789,7 +789,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.4.0beta94 - November 7, 2009
+ libpng version 1.4.0beta94 - November 9, 2009
 Updated and distributed by Glenn Randers-Pehrson
 <glennrp at users.sourceforge.net>
 Copyright (c) 1998-2009 Glenn Randers-Pehrson
@@ -800,7 +800,7 @@ libpng.txt - A description on how to use and modify libpng

 Based on:

- libpng versions 0.97, January 1998, through 1.4.0beta94 - November 7, 2009
+ libpng versions 0.97, January 1998, through 1.4.0beta94 - November 9, 2009
 Updated and distributed by Glenn Randers-Pehrson
 Copyright (c) 1998-2009 Glenn Randers-Pehrson

@@ -4016,7 +4016,7 @@ source.

 .SH XIII. Y2K Compliance in libpng

-November 7, 2009
+November 9, 2009

 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -4248,7 +4248,7 @@ possible without all of you.

 Thanks to Frank J. T. Wojcik for helping with the documentation.

-Libpng version 1.4.0beta94 - November 7, 2009:
+Libpng version 1.4.0beta94 - November 9, 2009:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).

@@ -4271,7 +4271,7 @@ this sentence.

 This code is released under the libpng license.

-libpng versions 1.2.6, August 15, 2004, through 1.4.0beta94, November 7, 2009, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.0beta94, November 9, 2009, are
 Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -4370,7 +4370,7 @@ certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-November 7, 2009
+November 9, 2009

 .\" end of man page

--- a/libpngpf.3
+++ b/libpngpf.3
-.TH LIBPNGPF 3 "November 7, 2009"
+.TH LIBPNGPF 3 "November 9, 2009"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta94
 (private functions)

--- a/png.5
+++ b/png.5
-.TH PNG 5 "November 7, 2009"
+.TH PNG 5 "November 9, 2009"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION

--- a/png.c
+++ b/png.c

 /* png.c - location for general purpose libpng functions
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -547,13 +547,13 @@ png_get_copyright(png_structp png_ptr)
 #else
 #ifdef __STDC__
   return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version 1.4.0beta94 - November 7, 2009" PNG_STRING_NEWLINE \
+     "libpng version 1.4.0beta94 - November 9, 2009" PNG_STRING_NEWLINE \
     "Copyright (c) 1998-2009 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
     "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
     "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
     PNG_STRING_NEWLINE);
 #else
-      return ((png_charp) "libpng version 1.4.0beta94 - November 7, 2009\
+      return ((png_charp) "libpng version 1.4.0beta94 - November 9, 2009\
      Copyright (c) 1998-2009 Glenn Randers-Pehrson\
      Copyright (c) 1996-1997 Andreas Dilger\
      Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");

--- a/png.h
+++ b/png.h

 /* png.h - header file for PNG reference library
 *
- * libpng version 1.4.0beta94 - November 7, 2009
+ * libpng version 1.4.0beta94 - November 9, 2009
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -11,7 +11,7 @@
 * Authors and maintainers:
 *  libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
 *  libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *  libpng versions 0.97, January 1998, through 1.4.0beta94 - November 7, 2009: Glenn
+ *  libpng versions 0.97, January 1998, through 1.4.0beta94 - November 9, 2009: Glenn
 *  See also "Contributing Authors", below.
 *
 * Note about libpng version numbers:
@@ -131,7 +131,7 @@
 *    1.4.0beta15-36          14    10400  14.so.0.0[.0]
 *    1.4.0beta37-87          14    10400  14.so.14.0[.0]
 *    1.4.0rc01               14    10400  14.so.14.0[.0]
- *    1.4.0beta88-94          14    10400  14.so.14.0[.0]
+ *    1.4.0beta88-93          14    10400  14.so.14.0[.0]
 *
 *    Henceforth the source version will match the shared-library major
 *    and minor numbers; the shared-library major version number will be
@@ -163,7 +163,7 @@
 *
 * This code is released under the libpng license.
 *
- * libpng versions 1.2.6, August 15, 2004, through 1.4.0beta94, November 7, 2009, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.4.0beta94, November 9, 2009, are
 * Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are
 * distributed according to the same disclaimer and license as libpng-1.2.5
 * with the following individual added to the list of Contributing Authors:
@@ -339,7 +339,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.4.0beta94"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.4.0beta94 - November 7, 2009\n"
+   " libpng version 1.4.0beta94 - November 9, 2009\n"

 #define PNG_LIBPNG_VER_SONUM   14
 #define PNG_LIBPNG_VER_DLLNUM  14

--- a/pngconf.h
+++ b/pngconf.h
@@ -1316,19 +1316,19 @@ typedef char            FAR * FAR * FAR * png_charppp;
 #endif

 #ifndef PNG_DEPRECATED
-#  define PNG_DEPRECATED  /* use of this function is deprecated */
+#  define PNG_DEPRECATED  /* Use of this function is deprecated */
 #endif
 #ifndef PNG_USE_RESULT
-#  define PNG_USE_RESULT  /* the result of this function must be checked */
+#  define PNG_USE_RESULT  /* The result of this function must be checked */
 #endif
 #ifndef PNG_NORETURN
-#  define PNG_NORETURN    /* this function does not return */
+#  define PNG_NORETURN    /* This function does not return */
 #endif
 #ifndef PNG_ALLOCATED
-#  define PNG_ALLOCATED   /* the result of the function is new memory */
+#  define PNG_ALLOCATED   /* The result of the function is new memory */
 #endif
 #ifndef PNG_DEPSTRUCT
-#  define PNG_DEPSTRUCT   /* access to this struct member is deprecated */
+#  define PNG_DEPSTRUCT   /* Access to this struct member is deprecated */
 #endif

 /* Users may want to use these so they are not private.  Any library
@@ -1352,7 +1352,7 @@ typedef char            FAR * FAR * FAR * png_charppp;
 #endif

 #ifdef USE_FAR_KEYWORD
-/* use this to make far-to-near assignments */
+/* Use this to make far-to-near assignments */
 #  define CHECK   1
 #  define NOCHECK 0
 #  define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
@@ -1365,7 +1365,7 @@ typedef char            FAR * FAR * FAR * png_charppp;
 #  define png_memset  _fmemset
 #  define png_sprintf sprintf
 #else
-#  ifdef _WINDOWS_  /* favor Windows over C runtime fns */
+#  ifdef _WINDOWS_  /* Favor Windows over C runtime fns */
 #    define CVT_PTR(ptr)         (ptr)
 #    define CVT_PTR_NOCHECK(ptr) (ptr)
 #    define png_strcpy  lstrcpyA

--- a/pngerror.c
+++ b/pngerror.c

 /* pngerror.c - stub functions for i/o and memory allocation
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngget.c
+++ b/pngget.c

 /* pngget.c - retrieval of values from info struct
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -892,7 +892,7 @@ png_get_user_height_max (png_structp png_ptr)
 {
    return (png_ptr? png_ptr->user_height_max : 0);
 }
-/* This function was added to libpng 1.2.41 */
+/* This function was added to libpng 1.4.0 */
 png_uint_32 PNGAPI
 png_get_chunk_cache_max (png_structp png_ptr)
 {

--- a/pngmem.c
+++ b/pngmem.c

 /* pngmem.c - stub functions for memory allocation
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngpread.c
+++ b/pngpread.c

 /* pngpread.c - read a png file in push mode
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngpriv.h
+++ b/pngpriv.h

 /* pngpriv.h - private declarations for use inside libpng
 *
- * libpng version 1.4.0beta94 - November 7, 2009
+ * libpng version 1.4.0beta94 - November 9, 2009
 * For conditions of distribution and use, see copyright notice in png.h
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)

--- a/pngread.c
+++ b/pngread.c

 /* pngread.c - read a PNG file
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -67,7 +67,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
 #ifdef PNG_SET_USER_LIMITS_SUPPORTED
   png_ptr->user_width_max = PNG_USER_WIDTH_MAX;
   png_ptr->user_height_max = PNG_USER_HEIGHT_MAX;
-   /* Added at libpng-1.2.41 */
+   /* Added at libpng-1.4.0 */
   png_ptr->user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX;
 #endif


--- a/pngrio.c
+++ b/pngrio.c

 /* pngrio.c - functions for data input
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngrtran.c
+++ b/pngrtran.c

 /* pngrtran.c - transforms the data in a row for PNG readers
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -607,8 +607,9 @@ png_set_expand(png_structp png_ptr)
 *  More to the point, these functions make it obvious what libpng will be
 *  doing, whereas "expand" can (and does) mean any number of things.
 *
- *  GRP 20060307: In libpng-1.4.0, png_set_gray_1_2_4_to_8() was modified
- *  to expand only the sample depth but not to expand the tRNS to alpha.
+ *  GRP 20060307: In libpng-1.2.9, png_set_gray_1_2_4_to_8() was modified
+ *  to expand only the sample depth but not to expand the tRNS to alpha
+ *  and its name was changed to png_set_expand_gray_1_2_4_to_8().
 */

 /* Expand paletted images to RGB. */

--- a/pngrutil.c
+++ b/pngrutil.c

 /* pngrutil.c - utilities to read a PNG file
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngset.c
+++ b/pngset.c

 /* pngset.c - storage of image information into info struct
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -1131,7 +1131,7 @@ png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max,
   png_ptr->user_width_max = user_width_max;
   png_ptr->user_height_max = user_height_max;
 }
-/* This function was added to libpng 1.2.41 */
+/* This function was added to libpng 1.4.0 */
 void PNGAPI
 png_set_chunk_cache_max (png_structp png_ptr,
   png_uint_32 user_chunk_cache_max)

--- a/pngtest.c
+++ b/pngtest.c

 /* pngtest.c - a simple test program to test libpng
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngtrans.c
+++ b/pngtrans.c

 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngwio.c
+++ b/pngwio.c

 /* pngwio.c - functions for data output
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngwrite.c
+++ b/pngwrite.c

 /* pngwrite.c - general routines to write a PNG file
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngwtran.c
+++ b/pngwtran.c

 /* pngwtran.c - transforms the data in a row for PNG writers
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/pngwutil.c
+++ b/pngwutil.c

 /* pngwutil.c - utilities to write a PNG file
 *
- * Last changed in libpng 1.4.0 [November 7, 2009]
+ * Last changed in libpng 1.4.0 [November 9, 2009]
 * Copyright (c) 1998-2009 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)

--- a/scripts/makefile.atari
+++ b/scripts/makefile.atari
@@ -6,7 +6,7 @@
 # For conditions of distribution and use, see the disclaimer
 # and license in png.h
 #
-# modified for LC56/ATARI assumes libz.lib is in same dir and uses default
+# Modified for LC56/ATARI assumes libz.lib is in same dir and uses default
 # rules for library management
 #
 CFLAGS=-DPNG_CONFIGURE_LIBPNG -I..\zlib -O

--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -170,7 +170,7 @@ pngtest-stat$(EXE): pngtest.o $(STATLIB)
 pngtest.pic.o: pngtest.c
 	$(CC) $(CFLAGS) -c $< -o $@

-pngtest.o: pngtest.c png.h pngconf.h pngpriv.h
+pngtest.o: pngtest.c png.h pngconf.h
 	$(CC) $(CFLAGS) -c $< -o $@

 test: test-static test-shared
@@ -286,8 +286,8 @@ pngwtran.o pngwtran.pic.o:	png.h pngconf.h pngpriv.h pngwtran.c
 pngwutil.o pngwutil.pic.o:	png.h pngconf.h pngpriv.h pngwutil.c
 pngpread.o pngpread.pic.o:	png.h pngconf.h pngpriv.h pngpread.c

-pngtest.o:			png.h pngconf.h
-pngtest-stat.o:			png.h pngconf.h
+pngtest.o:			png.h pngconf.h pngtest.c
+pngtest-stat.o:			png.h pngconf.h pngtest.c



--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -277,4 +277,4 @@ pngwtran.o pngwtran.pic.o:	png.h pngconf.h pngpriv.h pngwtran.c
 pngwutil.o pngwutil.pic.o:	png.h pngconf.h pngpriv.h pngwutil.c
 pngpread.o pngpread.pic.o:	png.h pngconf.h pngpriv.h pngpread.c

-pngtest.o pngtest.pic.o:	png.h pngconf.h pngpriv.h pngtest.c
+pngtest.o pngtest.pic.o:	png.h pngconf.h pngtest.c