diff -rup old/libpng-1.0.12/png.c new/libpng-1.0.12/png.c
--- old/libpng-1.0.12/png.c	Fri Jun  8 19:21:26 2001
+++ new/libpng-1.0.12/png.c	Sun Aug  5 14:29:10 2001
@@ -82,6 +82,7 @@ const int FARDATA png_pass_dsp_mask[]
 
 #endif
 
+#ifndef DEAD
 /* Tells libpng that we have already handled the first "num_bytes" bytes
  * of the PNG file signature.  If the PNG data is embedded into another
  * stream we can set num_bytes = 8 so that libpng will not attempt to read
@@ -97,6 +98,7 @@ png_set_sig_bytes(png_structp png_ptr, i
 
    png_ptr->sig_bytes = (png_byte)(num_bytes < 0 ? 0 : num_bytes);
 }
+#endif /* !DEAD */
 
 /* Checks whether the supplied bytes match the PNG signature.  We allow
  * checking less than the full 8-byte signature so that those apps that
@@ -109,7 +111,7 @@ png_set_sig_bytes(png_structp png_ptr, i
 int PNGAPI
 png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check)
 {
-   png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
+   static PNG_CONST png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10};
    if (num_to_check > 8)
       num_to_check = 8;
    else if (num_to_check < 1)
@@ -124,6 +126,7 @@ png_sig_cmp(png_bytep sig, png_size_t st
    return ((int)(png_memcmp(&sig[start], &png_signature[start], num_to_check)));
 }
 
+#ifndef DEAD
 /* (Obsolete) function to check signature bytes.  It does not allow one
  * to check a partial signature.  This function might be removed in the
  * future - use png_sig_cmp().  Returns true (nonzero) if the file is a PNG.
@@ -162,6 +165,7 @@ png_zfree(voidpf png_ptr, voidpf ptr)
 {
    png_free((png_structp)png_ptr, (png_voidp)ptr);
 }
+#endif /* !DEAD */
 
 /* Reset the CRC variable to 32 bits of 1's.  Care must be taken
  * in case CRC is > 32 bits to leave the top bits 0.
@@ -559,6 +563,7 @@ png_info_destroy(png_structp png_ptr, pn
    png_info_init_3(&info_ptr, sizeof(png_info));
 }
 
+#if !defined(PNG_NO_STDIO)
 /* This function returns a pointer to the io_ptr associated with the user
  * functions.  The application should free any memory associated with this
  * pointer before png_write_destroy() or png_read_destroy() are called.
@@ -569,7 +574,6 @@ png_get_io_ptr(png_structp png_ptr)
    return (png_ptr->io_ptr);
 }
 
-#if !defined(PNG_NO_STDIO)
 /* Initialize the default input/output functions for the PNG file.  If you
  * use your own read or write routines, you can call either png_set_read_fn()
  * or png_set_write_fn() instead of png_init_io().  If you have defined
@@ -653,6 +657,7 @@ png_get_copyright(png_structp png_ptr)
    return ((png_charp) "");
 }
 
+#ifndef DEAD
 /* The following return the library version as a short string in the
  * format 1.0.0 through 99.99.99zz.  To get the version of *.h files used
  * with your application, print out PNG_LIBPNG_VER_STRING, which is defined
@@ -685,6 +690,7 @@ png_get_header_version(png_structp png_p
       return((png_charp) PNG_HEADER_VERSION_STRING);
    return((png_charp) PNG_HEADER_VERSION_STRING);
 }
+#endif /* !DEAD */
 
 #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
 int /* PRIVATE */
@@ -703,6 +709,7 @@ png_handle_as_unknown(png_structp png_pt
 }
 #endif
 
+#ifndef DEAD
 /* This function, added to libpng-1.0.6g, is untested. */
 int PNGAPI
 png_reset_zstream(png_structp png_ptr)
@@ -717,6 +724,7 @@ png_access_version_number(void)
    /* Version of *.c files used when building libpng */
    return((png_uint_32) 10012L);
 }
+#endif /* !DEAD */
 
 /* this function was added to libpng 1.2.0 */
 #if !defined(PNG_USE_PNGGCCRD) && \
diff -rup old/libpng-1.0.12/png.h new/libpng-1.0.12/png.h
--- old/libpng-1.0.12/png.h	Fri Jun  8 19:21:25 2001
+++ new/libpng-1.0.12/png.h	Sun Aug  5 14:25:50 2001
@@ -1812,7 +1812,7 @@ extern void *png_far_to_near PNGARG((png
 
 /* Fatal error in PNG image of libpng - can't continue */
 extern PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr,
-   png_const_charp error));
+   png_const_charp error)) __attribute__ ((noreturn));
 
 /* The same, but the chunk name is prepended to the error string. */
 extern PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr,
@@ -3082,6 +3082,11 @@ PNG_EXTERN void png_do_write_intrapixel 
 #ifdef __cplusplus
 }
 #endif
+
+#ifdef DEAD
+#define png_memset_check(a,b,c,d) png_memset(b,c,d)
+#define png_memcpy_check(a,b,c,d) png_memcpy(b,c,d)
+#endif /* DEAD */
 
 #endif /* PNG_VERSION_INFO_ONLY */
 /* do not put anything past this line */
diff -rup old/libpng-1.0.12/pngconf.h new/libpng-1.0.12/pngconf.h
--- old/libpng-1.0.12/pngconf.h	Fri Jun  8 19:21:26 2001
+++ new/libpng-1.0.12/pngconf.h	Sun Aug  5 14:25:50 2001
@@ -173,6 +173,10 @@
 #  endif
 #endif
 
+#ifdef DEAD
+#define PNG_NO_STDIO
+#endif /* DEAD */
+
 #  ifdef PNG_NO_STDIO
 #    ifndef PNG_NO_CONSOLE_IO
 #      define PNG_NO_CONSOLE_IO
@@ -248,9 +252,19 @@
 #    endif
 #  endif /* __linux__ */
 
+#  ifdef __regargs
+#    define setjmp __stdargs setjmp
+#    define longjmp __stdargs longjmp
+#  endif
+
    /* include setjmp.h for error handling */
 #  include <setjmp.h>
 
+#  ifdef __regargs
+#    undef longjmp
+#    undef setjmp
+#  endif
+
 #  ifdef __linux__
 #    ifdef PNG_SAVE_BSD_SOURCE
 #      define _BSD_SOURCE
@@ -382,6 +396,99 @@
  */
 
 /* Any features you will not be using can be undef'ed here */
+
+#ifdef DEAD
+
+//#define PNG_NO_FREE_ME
+#define PNG_NO_FIXED_POINT_SUPPORTED
+
+//#define PNG_NO_READ_EXPAND
+#define PNG_NO_READ_SHIFT
+//#define PNG_NO_READ_PACK
+#define PNG_NO_READ_BGR
+#define PNG_NO_READ_SWAP
+#define PNG_NO_READ_PACKSWAP
+#define PNG_NO_READ_INVERT
+#define PNG_NO_READ_DITHER
+//#define PNG_NO_READ_BACKGROUND
+//#define PNG_NO_READ_16_TO_8
+#define PNG_NO_READ_FILLER
+//#define PNG_NO_READ_GAMMA
+#define PNG_NO_READ_GRAY_TO_RGB
+#define PNG_NO_READ_SWAP_ALPHA
+#define PNG_NO_READ_INVERT_ALPHA
+#define PNG_NO_READ_STRIP_ALPHA
+#define PNG_NO_READ_USER_TRANSFORM
+#define PNG_NO_READ_RGB_TO_GRAY
+#define PNG_NO_PROGRESSIVE_READ
+//#define PNG_NO_READ_COMPOSITED_NODIV
+#define PNG_NO_READ_EMPTY_PLTE
+
+#define PNG_NO_WRITE_SHIFT
+//#define PNG_NO_WRITE_PACK
+#define PNG_NO_WRITE_BGR
+#define PNG_NO_WRITE_SWAP
+#define PNG_NO_WRITE_PACKSWAP
+#define PNG_NO_WRITE_INVERT
+#define PNG_NO_WRITE_FILLER
+#define PNG_NO_WRITE_SWAP_ALPHA
+#define PNG_NO_WRITE_INVERT_ALPHA
+#define PNG_NO_WRITE_USER_TRANSFORM
+#define PNG_NO_WRITE_WEIGHTED_FILTER
+#define PNG_NO_WRITE_FLUSH
+#define PNG_NO_WRITE_EMPTY_PLTE
+
+//#define PNG_NO_READ_bKGD
+//#define PNG_NO_READ_cHRM
+//#define PNG_NO_READ_gAMA
+#define PNG_NO_READ_hIST
+#define PNG_NO_READ_iCCP
+#define PNG_NO_READ_iTXt
+#define PNG_NO_READ_oFFs
+#define PNG_NO_READ_pCAL
+#define PNG_NO_READ_sCAL
+#define PNG_NO_READ_pHYs
+#define PNG_NO_READ_sBIT
+#define PNG_NO_READ_sPLT
+//#define PNG_NO_READ_sRGB
+#define PNG_NO_READ_tEXt
+#define PNG_NO_READ_tIME
+//#define PNG_NO_READ_tRNS
+#define PNG_NO_READ_zTXt
+#define PNG_NO_READ_USER_CHUNKS
+#define PNG_NO_READ_UNKNOWN_CHUNKS
+#define PNG_NO_READ_OPT_PLTE
+
+//#define PNG_NO_WRITE_bKGD
+//#define PNG_NO_WRITE_cHRM
+//#define PNG_NO_WRITE_gAMA
+#define PNG_NO_WRITE_hIST
+#define PNG_NO_WRITE_iCCP
+#define PNG_NO_WRITE_iTXt
+#define PNG_NO_WRITE_oFFs
+#define PNG_NO_WRITE_pCAL
+#define PNG_NO_WRITE_sCAL
+#define PNG_NO_WRITE_pHYs
+#define PNG_NO_WRITE_sBIT
+#define PNG_NO_WRITE_sPLT
+//#define PNG_NO_WRITE_sRGB
+#define PNG_NO_WRITE_tEXt
+#define PNG_NO_WRITE_tIME
+//#define PNG_NO_WRITE_tRNS
+#define PNG_NO_WRITE_zTXt
+#define PNG_NO_WRITE_UNKNOWN_CHUNKS
+
+#define PNG_NO_MNG_FEATURES
+#define PNG_NO_INFO_IMAGE
+#define PNG_NO_EASY_ACCESS
+#define PNG_NO_ASSEMBLER_CODE
+//#define PNG_NO_GLOBAL_ARRAYS
+//#define PNG_USE_LOCAL_ARRAYS
+//#define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
+//#define PNG_USER_MEM_SUPPORTED
+#define PNG_READ_BIG_ENDIAN_SUPPORTED
+
+#endif /* DEAD */
 
 /* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user
  * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS
diff -rup old/libpng-1.0.12/pngget.c new/libpng-1.0.12/pngget.c
--- old/libpng-1.0.12/pngget.c	Fri Jun  8 19:21:27 2001
+++ new/libpng-1.0.12/pngget.c	Sun Aug  5 14:25:50 2001
@@ -820,10 +820,12 @@ png_get_user_chunk_ptr(png_structp png_p
 #endif
 
 
+#ifndef DEAD
 png_uint_32 PNGAPI
 png_get_compression_buffer_size(png_structp png_ptr)
 {
    return (png_uint_32)(png_ptr? png_ptr->zbuf_size : 0L);
 }
+#endif /* !DEAD */
 
 
diff -rup old/libpng-1.0.12/pngread.c new/libpng-1.0.12/pngread.c
--- old/libpng-1.0.12/pngread.c	Fri Jun  8 19:21:27 2001
+++ new/libpng-1.0.12/pngread.c	Sun Aug  5 14:25:50 2001
@@ -164,11 +164,14 @@ png_create_read_struct_2(png_const_charp
    png_ptr->zstream.next_out = png_ptr->zbuf;
    png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
 
+#ifndef DEAD
    png_set_read_fn(png_ptr, NULL, NULL);
+#endif /* !DEAD */
 
    return (png_ptr);
 }
 
+#ifndef DEAD
 /* Initialize PNG structure for reading, and allocate any memory needed.
    This interface is deprecated in favour of the png_create_read_struct(),
    and it will eventually disappear. */
@@ -294,6 +297,7 @@ png_read_init_3(png_structpp ptr_ptr, pn
 
    png_set_read_fn(png_ptr, NULL, NULL);
 }
+#endif /* !DEAD */
 
 /* Read the information before the actual image data.  This has been
  * changed in v0.90 to allow reading a file that already has the magic
@@ -773,6 +777,7 @@ png_read_row(png_structp png_ptr, png_by
       (*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass);
 }
 
+#ifndef DEAD
 /* Read one or more rows of image data.  If the image is interlaced,
  * and png_set_interlace_handling() has been called, the rows need to
  * contain the contents of the rows from the previous pass.  If the
@@ -878,6 +883,7 @@ png_read_image(png_structp png_ptr, png_
       }
    }
 }
+#endif /* !DEAD */
 
 /* Read the end of the PNG file.  Will not read past the end of the
  * file, will verify the end is accurate, and will read any comments
@@ -1275,11 +1281,13 @@ png_read_destroy(png_structp png_ptr, pn
 
 }
 
+#ifndef DEAD
 void PNGAPI
 png_set_read_status_fn(png_structp png_ptr, png_read_status_ptr read_row_fn)
 {
    png_ptr->read_row_fn = read_row_fn;
 }
+#endif /* !DEAD */
 
 #if defined(PNG_INFO_IMAGE_SUPPORTED)
 void PNGAPI
diff -rup old/libpng-1.0.12/pngrtran.c new/libpng-1.0.12/pngrtran.c
--- old/libpng-1.0.12/pngrtran.c	Fri Jun  8 19:21:28 2001
+++ new/libpng-1.0.12/pngrtran.c	Sun Aug  5 14:25:50 2001
@@ -16,6 +16,7 @@
 #define PNG_INTERNAL
 #include "png.h"
 
+#ifndef DEAD
 /* Set the action on getting a CRC error for an ancillary or critical chunk. */
 void PNGAPI
 png_set_crc_action(png_structp png_ptr, int crit_action, int ancil_action)
@@ -68,6 +69,7 @@ png_set_crc_action(png_structp png_ptr, 
          break;
    }
 }
+#endif /* !DEAD */
 
 #if defined(PNG_READ_BACKGROUND_SUPPORTED) && \
     defined(PNG_FLOATING_POINT_SUPPORTED)
@@ -2307,6 +2309,7 @@ png_do_rgb_to_gray(png_structp png_ptr, 
 }
 #endif
 
+#ifndef DEAD
 /* Build a grayscale palette.  Palette is assumed to be 1 << bit_depth
  * large of png_color.  This lets grayscale images be treated as
  * paletted.  Most useful for gamma correction and simplification
@@ -2355,6 +2358,7 @@ png_build_grayscale_palette(int bit_dept
       palette[i].blue = (png_byte)v;
    }
 }
+#endif /* !DEAD */
 
 /* This function is currently unused.  Do we really need it? */
 #if defined(PNG_READ_DITHER_SUPPORTED) && defined(PNG_CORRECT_PALETTE_SUPPORTED)
@@ -3832,7 +3836,7 @@ png_do_dither(png_row_infop row_info, pn
 
 #ifdef PNG_FLOATING_POINT_SUPPORTED
 #if defined(PNG_READ_GAMMA_SUPPORTED)
-static int png_gamma_shift[] =
+static PNG_CONST int png_gamma_shift[] =
    {0x10, 0x21, 0x42, 0x84, 0x110, 0x248, 0x550, 0xff0};
 
 /* We build the 8- or 16-bit gamma tables here.  Note that for 16-bit
diff -rup old/libpng-1.0.12/pngset.c new/libpng-1.0.12/pngset.c
--- old/libpng-1.0.12/pngset.c	Fri Jun  8 19:21:29 2001
+++ new/libpng-1.0.12/pngset.c	Sun Aug  5 14:37:05 2001
@@ -113,6 +113,7 @@ png_set_gAMA(png_structp png_ptr, png_in
       png_warning(png_ptr, "Setting gamma=0");
 }
 #endif
+#ifdef PNG_FIXED_POINT_SUPPORTED
 void PNGAPI
 png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
    int_gamma)
@@ -124,14 +125,13 @@ png_set_gAMA_fixed(png_structp png_ptr, 
 #ifdef PNG_FLOATING_POINT_SUPPORTED
    info_ptr->gamma = (float)(int_gamma/100000.);
 #endif
-#ifdef PNG_FIXED_POINT_SUPPORTED
    info_ptr->int_gamma = int_gamma;
-#endif
    info_ptr->valid |= PNG_INFO_gAMA;
    if(int_gamma == 0)
       png_warning(png_ptr, "Setting gamma=0");
 }
 #endif
+#endif /* PNG_gAMA_SUPPORTED */
 
 #if defined(PNG_hIST_SUPPORTED)
 void PNGAPI
@@ -951,6 +951,7 @@ png_set_rows(png_structp png_ptr, png_in
 }
 #endif
 
+#ifndef DEAD
 void PNGAPI
 png_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size)
 {
@@ -968,5 +969,6 @@ png_set_invalid(png_structp png_ptr, png
    if (png_ptr && info_ptr)
       info_ptr->valid &= ~(mask);
 }
+#endif /* !DEAD */