Common subdirectories: libpng-1.2.21/contrib and libpng-1.2.22beta4/contrib
diff libpng-1.2.21/png.h libpng-1.2.22beta4/png.h
166a167
>  *    1.2.22beta1-4           13    10222  12.so.0.22[.0]
diff libpng-1.2.21/pngconf.h libpng-1.2.22beta4/pngconf.h
80c80,83
< #    define PNG_WARN_UNINITIALIZED_ROW 1
---
> #if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \
>     !defined(PNG_WARN_UNINITIALIZED_ROW)
> #  define PNG_WARN_UNINITIALIZED_ROW 1
> #endif
diff libpng-1.2.21/pngerror.c libpng-1.2.22beta4/pngerror.c
4c4
<  * Last changed in libpng 1.2.20 September 7, 2007
---
>  * Last changed in libpng 1.2.22 [%DATE%]
163c163
<       buffer[iout] = 0;
---
>       buffer[iout] = '\0';
169c169
<       buffer[iout+63] = 0;
---
>       buffer[iout+63] = '\0';
diff libpng-1.2.21/pngpread.c libpng-1.2.22beta4/pngpread.c
4c4
<  * Last changed in libpng 1.2.21 October 4, 2007
---
>  * Last changed in libpng 1.2.22 [%DATE%]
1494c1494,1495
< 	 (png_charp)png_ptr->chunk_name, 5);
---
> 	 (png_charp)png_ptr->chunk_name, 4);
>       png_ptr->unknown_chunk.name[4] = '\0';
diff libpng-1.2.21/pngrtran.c libpng-1.2.22beta4/pngrtran.c
581d580
<    png_ptr->flags &= !(PNG_FLAG_ROW_INIT);
861c860
<       png_ptr->transformations &= ~(PNG_GAMMA);
---
>       png_ptr->transformations &= ~PNG_GAMMA;
diff libpng-1.2.21/pngrutil.c libpng-1.2.22beta4/pngrutil.c
4c4
<  * Last changed in libpng 1.2.21 October 4, 2007
---
>  * Last changed in libpng 1.2.22 [%DATE%]
2227c2227,2228
< 	 (png_charp)png_ptr->chunk_name, 5);
---
> 	 (png_charp)png_ptr->chunk_name, 4);
>        png_ptr->unknown_chunk.name[4] = '\0';
diff libpng-1.2.21/pngset.c libpng-1.2.22beta4/pngset.c
4c4
<  * Last changed in libpng 1.2.21 [%DATE%]
---
>  * Last changed in libpng 1.2.22 [%DATE%]
693c693,694
<    png_strncpy(new_iccp_name, name, png_strlen(new_iccp_name)+1);
---
>    png_strncpy(new_iccp_name, name, png_strlen(name));
>    new_iccp_name[png_strlen(name)] = '\0';
983c984,985
<         png_strncpy(to->name, from->name, png_strlen(from->name)+1);
---
>         png_strncpy(to->name, from->name, png_strlen(from->name));
>         to->name[png_strlen(from->name)] = '\0';
1040c1042,1043
<         png_strncpy((png_charp)to->name, (png_charp)from->name, 5);
---
>         png_strncpy((png_charp)to->name, (png_charp)from->name, 4);
>         to->name[4] = '\0';
diff libpng-1.2.21/pngtest.c libpng-1.2.22beta4/pngtest.c
4c4
<  * Last changed in libpng 1.2.6 - August 15, 2004
---
>  * Last changed in libpng 1.2.22 - [%DATE%]
1009c1009,1010
<             mod_time),30);
---
>             mod_time),29);
>          tIME_string[29] = '\0';
1150c1151,1152
<             mod_time),30);
---
>             mod_time),29);
>          tIME_string[29] = '\0';
Common subdirectories: libpng-1.2.21/projects and libpng-1.2.22beta4/projects
Common subdirectories: libpng-1.2.21/scripts and libpng-1.2.22beta4/scripts