diff --git a/libpng-1.6.25-apng.patch b/libpng-1.6.26-apng.patch
similarity index 93%
rename from libpng-1.6.25-apng.patch
rename to libpng-1.6.26-apng.patch
index 78c05ec..5811c5a 100644
--- a/libpng-1.6.25-apng.patch
+++ b/libpng-1.6.26-apng.patch
@@ -1,6 +1,6 @@
-diff -Naru libpng-1.6.25.org/png.h libpng-1.6.25/png.h
---- libpng-1.6.25.org/png.h	2016-09-16 21:30:52.615790113 +0900
-+++ libpng-1.6.25/png.h	2016-09-16 21:30:52.664790257 +0900
+diff -Naru libpng-1.6.26.org/png.h libpng-1.6.26/png.h
+--- libpng-1.6.26.org/png.h	2016-10-20 23:41:17.097162484 +0900
++++ libpng-1.6.26/png.h	2016-10-20 23:55:10.025489293 +0900
 @@ -366,6 +366,10 @@
  #   include "pnglibconf.h"
  #endif
@@ -18,13 +18,13 @@ diff -Naru libpng-1.6.25.org/png.h libpng-1.6.25/png.h
  
 +#ifdef PNG_APNG_SUPPORTED
 +/* dispose_op flags from inside fcTL */
-+#define PNG_DISPOSE_OP_NONE        0x00
-+#define PNG_DISPOSE_OP_BACKGROUND  0x01
-+#define PNG_DISPOSE_OP_PREVIOUS    0x02
++#define PNG_DISPOSE_OP_NONE        0x00U
++#define PNG_DISPOSE_OP_BACKGROUND  0x01U
++#define PNG_DISPOSE_OP_PREVIOUS    0x02U
 +
 +/* blend_op flags from inside fcTL */
-+#define PNG_BLEND_OP_SOURCE        0x00
-+#define PNG_BLEND_OP_OVER          0x01
++#define PNG_BLEND_OP_SOURCE        0x00U
++#define PNG_BLEND_OP_OVER          0x01U
 +#endif /* PNG_APNG_SUPPORTED */
 +
  /* This triggers a compiler error in png.c, if png.c and png.h
@@ -35,8 +35,8 @@ diff -Naru libpng-1.6.25.org/png.h libpng-1.6.25/png.h
  #define PNG_INFO_sCAL 0x4000U  /* ESR, 1.0.6 */
  #define PNG_INFO_IDAT 0x8000U  /* ESR, 1.0.6 */
 +#ifdef PNG_APNG_SUPPORTED
-+#define PNG_INFO_acTL 0x10000
-+#define PNG_INFO_fcTL 0x20000
++#define PNG_INFO_acTL 0x10000U
++#define PNG_INFO_fcTL 0x20000U
 +#endif
  
  /* This is used for the transformation routines, as some of them
@@ -139,9 +139,9 @@ diff -Naru libpng-1.6.25.org/png.h libpng-1.6.25/png.h
  #endif
  
  #ifdef __cplusplus
-diff -Naru libpng-1.6.25.org/pngget.c libpng-1.6.25/pngget.c
---- libpng-1.6.25.org/pngget.c	2016-09-16 21:30:52.616790117 +0900
-+++ libpng-1.6.25/pngget.c	2016-09-16 21:30:52.665790260 +0900
+diff -Naru libpng-1.6.26.org/pngget.c libpng-1.6.26/pngget.c
+--- libpng-1.6.26.org/pngget.c	2016-10-20 23:41:17.098162476 +0900
++++ libpng-1.6.26/pngget.c	2016-10-20 23:40:14.452643290 +0900
 @@ -1216,4 +1216,166 @@
  #  endif
  #endif
@@ -309,9 +309,9 @@ diff -Naru libpng-1.6.25.org/pngget.c libpng-1.6.25/pngget.c
 +}
 +#endif /* PNG_APNG_SUPPORTED */
  #endif /* READ || WRITE */
-diff -Naru libpng-1.6.25.org/pnginfo.h libpng-1.6.25/pnginfo.h
---- libpng-1.6.25.org/pnginfo.h	2016-09-16 21:30:52.616790117 +0900
-+++ libpng-1.6.25/pnginfo.h	2016-09-16 21:30:52.665790260 +0900
+diff -Naru libpng-1.6.26.org/pnginfo.h libpng-1.6.26/pnginfo.h
+--- libpng-1.6.26.org/pnginfo.h	2016-09-16 21:30:52.616790117 +0900
++++ libpng-1.6.26/pnginfo.h	2016-10-20 23:40:14.432643443 +0900
 @@ -255,5 +255,18 @@
     png_bytepp row_pointers;        /* the image bits */
  #endif
@@ -331,9 +331,9 @@ diff -Naru libpng-1.6.25.org/pnginfo.h libpng-1.6.25/pnginfo.h
 +
  };
  #endif /* PNGINFO_H */
-diff -Naru libpng-1.6.25.org/pngpread.c libpng-1.6.25/pngpread.c
---- libpng-1.6.25.org/pngpread.c	2016-09-16 21:30:52.616790117 +0900
-+++ libpng-1.6.25/pngpread.c	2016-09-16 21:30:52.665790260 +0900
+diff -Naru libpng-1.6.26.org/pngpread.c libpng-1.6.26/pngpread.c
+--- libpng-1.6.26.org/pngpread.c	2016-10-20 23:41:17.098162476 +0900
++++ libpng-1.6.26/pngpread.c	2016-10-20 23:40:14.451643298 +0900
 @@ -194,6 +194,106 @@
  
     chunk_name = png_ptr->chunk_name;
@@ -575,7 +575,7 @@ diff -Naru libpng-1.6.25.org/pngpread.c libpng-1.6.25/pngpread.c
     /* This routine must process all the data it has been given
      * before returning, calling the row callback as required to
      * handle the uncompressed results.
-@@ -1079,6 +1266,18 @@
+@@ -1084,6 +1271,18 @@
     png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer);
  }
  
@@ -594,21 +594,21 @@ diff -Naru libpng-1.6.25.org/pngpread.c libpng-1.6.25/pngpread.c
  png_voidp PNGAPI
  png_get_progressive_ptr(png_const_structrp png_ptr)
  {
-diff -Naru libpng-1.6.25.org/pngpriv.h libpng-1.6.25/pngpriv.h
---- libpng-1.6.25.org/pngpriv.h	2016-09-16 21:30:52.616790117 +0900
-+++ libpng-1.6.25/pngpriv.h	2016-09-16 21:30:52.666790263 +0900
-@@ -566,6 +566,10 @@
- #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */
-                    /*             0x4000 (unused) */
- #define PNG_IS_READ_STRUCT        0x8000 /* Else is a write struct */
+diff -Naru libpng-1.6.26.org/pngpriv.h libpng-1.6.26/pngpriv.h
+--- libpng-1.6.26.org/pngpriv.h	2016-10-20 23:41:17.098162476 +0900
++++ libpng-1.6.26/pngpriv.h	2016-10-20 23:48:56.011006323 +0900
+@@ -567,6 +567,10 @@
+ #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
+                    /*             0x4000U (unused) */
+ #define PNG_IS_READ_STRUCT        0x8000U /* Else is a write struct */
 +#ifdef PNG_APNG_SUPPORTED
-+#define PNG_HAVE_acTL            0x10000
-+#define PNG_HAVE_fcTL            0x20000
++#define PNG_HAVE_acTL            0x10000U
++#define PNG_HAVE_fcTL            0x20000U
 +#endif
  
  /* Flags for the transformations the PNG library does on the image data */
- #define PNG_BGR                 0x0001
-@@ -783,6 +787,16 @@
+ #define PNG_BGR                 0x0001U
+@@ -802,6 +806,16 @@
  #define png_tRNS PNG_U32(116,  82,  78,  83)
  #define png_zTXt PNG_U32(122,  84,  88, 116)
  
@@ -618,14 +618,14 @@ diff -Naru libpng-1.6.25.org/pngpriv.h libpng-1.6.25/pngpriv.h
 +#define png_fdAT PNG_U32(102, 100,  65,  84)
 +
 +/* For png_struct.apng_flags: */
-+#define PNG_FIRST_FRAME_HIDDEN       0x0001
-+#define PNG_APNG_APP                 0x0002
++#define PNG_FIRST_FRAME_HIDDEN       0x0001U
++#define PNG_APNG_APP                 0x0002U
 +#endif
 +
  /* The following will work on (signed char*) strings, whereas the get_uint_32
   * macro will fail on top-bit-set values because of the sign extension.
   */
-@@ -1509,6 +1523,47 @@
+@@ -1528,6 +1542,47 @@
      */
  #endif
  
@@ -673,9 +673,9 @@ diff -Naru libpng-1.6.25.org/pngpriv.h libpng-1.6.25/pngpriv.h
  /* Added at libpng version 1.4.0 */
  #ifdef PNG_COLORSPACE_SUPPORTED
  /* These internal functions are for maintaining the colorspace structure within
-diff -Naru libpng-1.6.25.org/pngread.c libpng-1.6.25/pngread.c
---- libpng-1.6.25.org/pngread.c	2016-09-16 21:30:52.617790119 +0900
-+++ libpng-1.6.25/pngread.c	2016-09-16 21:30:52.666790263 +0900
+diff -Naru libpng-1.6.26.org/pngread.c libpng-1.6.26/pngread.c
+--- libpng-1.6.26.org/pngread.c	2016-10-20 23:41:17.099162468 +0900
++++ libpng-1.6.26/pngread.c	2016-10-20 23:40:14.447643328 +0900
 @@ -161,6 +161,9 @@
  
        else if (chunk_name == png_IDAT)
@@ -777,10 +777,10 @@ diff -Naru libpng-1.6.25.org/pngread.c libpng-1.6.25/pngread.c
  /* Optional call to update the users info_ptr structure */
  void PNGAPI
  png_read_update_info(png_structrp png_ptr, png_inforp info_ptr)
-diff -Naru libpng-1.6.25.org/pngrutil.c libpng-1.6.25/pngrutil.c
---- libpng-1.6.25.org/pngrutil.c	2016-09-16 21:30:52.618790122 +0900
-+++ libpng-1.6.25/pngrutil.c	2016-09-16 21:30:52.668790268 +0900
-@@ -857,6 +857,11 @@
+diff -Naru libpng-1.6.26.org/pngrutil.c libpng-1.6.26/pngrutil.c
+--- libpng-1.6.26.org/pngrutil.c	2016-10-20 23:41:17.100162461 +0900
++++ libpng-1.6.26/pngrutil.c	2016-10-20 23:40:14.444643351 +0900
+@@ -860,6 +860,11 @@
     filter_type = buf[11];
     interlace_type = buf[12];
  
@@ -792,7 +792,7 @@ diff -Naru libpng-1.6.25.org/pngrutil.c libpng-1.6.25/pngrutil.c
     /* Set internal variables */
     png_ptr->width = width;
     png_ptr->height = height;
-@@ -2757,6 +2762,179 @@
+@@ -2760,6 +2765,179 @@
  }
  #endif
  
@@ -972,7 +972,7 @@ diff -Naru libpng-1.6.25.org/pngrutil.c libpng-1.6.25/pngrutil.c
  #ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED
  /* Utility function for png_handle_unknown; set up png_ptr::unknown_chunk */
  static int
-@@ -4015,7 +4193,38 @@
+@@ -4021,7 +4199,38 @@
        {
           uInt avail_in;
           png_bytep buffer;
@@ -1011,7 +1011,7 @@ diff -Naru libpng-1.6.25.org/pngrutil.c libpng-1.6.25/pngrutil.c
           while (png_ptr->idat_size == 0)
           {
              png_crc_finish(png_ptr, 0);
-@@ -4027,7 +4236,7 @@
+@@ -4033,7 +4242,7 @@
              if (png_ptr->chunk_name != png_IDAT)
                 png_error(png_ptr, "Not enough image data");
           }
@@ -1020,7 +1020,7 @@ diff -Naru libpng-1.6.25.org/pngrutil.c libpng-1.6.25/pngrutil.c
           avail_in = png_ptr->IDAT_read_size;
  
           if (avail_in > png_ptr->idat_size)
-@@ -4090,6 +4299,9 @@
+@@ -4096,6 +4305,9 @@
  
           png_ptr->mode |= PNG_AFTER_IDAT;
           png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED;
@@ -1030,7 +1030,7 @@ diff -Naru libpng-1.6.25.org/pngrutil.c libpng-1.6.25/pngrutil.c
  
           if (png_ptr->zstream.avail_in > 0 || png_ptr->idat_size > 0)
              png_chunk_benign_error(png_ptr, "Extra compressed data");
-@@ -4528,4 +4740,80 @@
+@@ -4542,4 +4754,80 @@
  
     png_ptr->flags |= PNG_FLAG_ROW_INIT;
  }
@@ -1111,9 +1111,9 @@ diff -Naru libpng-1.6.25.org/pngrutil.c libpng-1.6.25/pngrutil.c
 +#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
 +#endif /* PNG_READ_APNG_SUPPORTED */
  #endif /* READ */
-diff -Naru libpng-1.6.25.org/pngset.c libpng-1.6.25/pngset.c
---- libpng-1.6.25.org/pngset.c	2016-09-16 21:30:52.618790122 +0900
-+++ libpng-1.6.25/pngset.c	2016-09-16 21:30:52.668790268 +0900
+diff -Naru libpng-1.6.26.org/pngset.c libpng-1.6.26/pngset.c
+--- libpng-1.6.26.org/pngset.c	2016-10-20 23:41:17.101162453 +0900
++++ libpng-1.6.26/pngset.c	2016-10-20 23:49:51.058637459 +0900
 @@ -241,6 +241,11 @@
     info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
  
@@ -1126,7 +1126,7 @@ diff -Naru libpng-1.6.25.org/pngset.c libpng-1.6.25/pngset.c
  }
  
  #ifdef PNG_oFFs_SUPPORTED
-@@ -1096,6 +1101,147 @@
+@@ -1110,6 +1115,147 @@
  }
  #endif /* sPLT */
  
@@ -1274,9 +1274,9 @@ diff -Naru libpng-1.6.25.org/pngset.c libpng-1.6.25/pngset.c
  #ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
  static png_byte
  check_location(png_const_structrp png_ptr, int location)
-diff -Naru libpng-1.6.25.org/pngstruct.h libpng-1.6.25/pngstruct.h
---- libpng-1.6.25.org/pngstruct.h	2016-09-16 21:30:52.618790122 +0900
-+++ libpng-1.6.25/pngstruct.h	2016-09-16 21:30:52.668790268 +0900
+diff -Naru libpng-1.6.26.org/pngstruct.h libpng-1.6.26/pngstruct.h
+--- libpng-1.6.26.org/pngstruct.h	2016-10-20 23:41:17.101162453 +0900
++++ libpng-1.6.26/pngstruct.h	2016-10-20 23:40:14.439643390 +0900
 @@ -403,6 +403,27 @@
     png_byte filter_type;
  #endif
@@ -1305,10 +1305,10 @@ diff -Naru libpng-1.6.25.org/pngstruct.h libpng-1.6.25/pngstruct.h
  /* New members added in libpng-1.2.0 */
  
  /* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */
-diff -Naru libpng-1.6.25.org/pngtest.c libpng-1.6.25/pngtest.c
---- libpng-1.6.25.org/pngtest.c	2016-09-16 21:30:52.618790122 +0900
-+++ libpng-1.6.25/pngtest.c	2016-09-16 21:30:52.668790268 +0900
-@@ -884,6 +884,10 @@
+diff -Naru libpng-1.6.26.org/pngtest.c libpng-1.6.26/pngtest.c
+--- libpng-1.6.26.org/pngtest.c	2016-10-20 23:41:17.101162453 +0900
++++ libpng-1.6.26/pngtest.c	2016-10-20 23:40:14.438643397 +0900
+@@ -874,6 +874,10 @@
     volatile int num_passes;
     int pass;
     int bit_depth, color_type;
@@ -1319,7 +1319,7 @@ diff -Naru libpng-1.6.25.org/pngtest.c libpng-1.6.25/pngtest.c
  
     row_buf = NULL;
     error_parameters.file_name = inname;
-@@ -1363,6 +1367,22 @@
+@@ -1353,6 +1357,22 @@
        }
     }
  #endif
@@ -1342,7 +1342,7 @@ diff -Naru libpng-1.6.25.org/pngtest.c libpng-1.6.25/pngtest.c
  #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED
     {
        png_unknown_chunkp unknowns;
-@@ -1434,6 +1454,110 @@
+@@ -1429,6 +1449,110 @@
     t_misc += (t_stop - t_start);
     t_start = t_stop;
  #endif
@@ -1453,9 +1453,9 @@ diff -Naru libpng-1.6.25.org/pngtest.c libpng-1.6.25/pngtest.c
     for (pass = 0; pass < num_passes; pass++)
     {
  #     ifdef calc_pass_height
-diff -Naru libpng-1.6.25.org/pngwrite.c libpng-1.6.25/pngwrite.c
---- libpng-1.6.25.org/pngwrite.c	2016-09-16 21:30:52.619790125 +0900
-+++ libpng-1.6.25/pngwrite.c	2016-09-16 21:30:52.669790271 +0900
+diff -Naru libpng-1.6.26.org/pngwrite.c libpng-1.6.26/pngwrite.c
+--- libpng-1.6.26.org/pngwrite.c	2016-10-20 23:41:17.101162453 +0900
++++ libpng-1.6.26/pngwrite.c	2016-10-20 23:40:14.437643405 +0900
 @@ -128,6 +128,10 @@
         * the application continues writing the PNG.  So check the 'invalid'
         * flag here too.
@@ -1523,9 +1523,9 @@ diff -Naru libpng-1.6.25.org/pngwrite.c libpng-1.6.25/pngwrite.c
  
  #ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED
  /* Initialize the write structure - general purpose utility. */
-diff -Naru libpng-1.6.25.org/pngwutil.c libpng-1.6.25/pngwutil.c
---- libpng-1.6.25.org/pngwutil.c	2016-09-16 21:30:52.619790125 +0900
-+++ libpng-1.6.25/pngwutil.c	2016-09-16 21:30:52.669790271 +0900
+diff -Naru libpng-1.6.26.org/pngwutil.c libpng-1.6.26/pngwutil.c
+--- libpng-1.6.26.org/pngwutil.c	2016-10-20 23:41:17.102162445 +0900
++++ libpng-1.6.26/pngwutil.c	2016-10-20 23:40:14.435643420 +0900
 @@ -817,6 +817,11 @@
     /* Write the chunk */
     png_write_complete_chunk(png_ptr, png_IHDR, buf, (png_size_t)13);
@@ -1692,9 +1692,9 @@ diff -Naru libpng-1.6.25.org/pngwutil.c libpng-1.6.25/pngwutil.c
 +}
 +#endif /* PNG_WRITE_APNG_SUPPORTED */
  #endif /* WRITE */
-diff -Naru libpng-1.6.25.org/scripts/symbols.def libpng-1.6.25/scripts/symbols.def
---- libpng-1.6.25.org/scripts/symbols.def	2016-09-16 21:30:52.624790140 +0900
-+++ libpng-1.6.25/scripts/symbols.def	2016-09-16 21:30:52.674790286 +0900
+diff -Naru libpng-1.6.26.org/scripts/symbols.def libpng-1.6.26/scripts/symbols.def
+--- libpng-1.6.26.org/scripts/symbols.def	2016-10-20 23:41:17.103162438 +0900
++++ libpng-1.6.26/scripts/symbols.def	2016-10-20 23:40:14.433643436 +0900
 @@ -250,3 +250,23 @@
   png_get_palette_max @243
   png_set_option @244
diff --git a/libpng.spec b/libpng.spec
index e742dce..dbdcb84 100644
--- a/libpng.spec
+++ b/libpng.spec
@@ -1,6 +1,6 @@
 %define apiver %(echo %version | cut -d. -f1-2 | tr -d .)
 Name:          libpng
-Version:       1.6.25
+Version:       1.6.26
 Release:       1mamba
 Summary:       A library of functions for manipulating PNG image format files
 Group:         System/Libraries
@@ -126,6 +126,9 @@ ln -s libpng%{apiver}.so %{buildroot}%{_prefix}/lib/libpng.so
 %endif
 
 %changelog
+* Sat Oct 22 2016 Automatic Build System <autodist@mambasoft.it> 1.6.26-1mamba
+- automatic version update by autodist
+
 * Tue Oct 04 2016 Automatic Build System <autodist@mambasoft.it> 1.6.25-1mamba
 - automatic version update by autodist