[GRASS-dev] Re: [GRASS GIS] #1347: r.out.png uses now hidden libpng structs

[GRASS GIS]

#1347: r.out.png uses now hidden libpng structs
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 Reporter:  kyngchaos    |       Owner:  grass-dev@…              
     Type:  defect       |      Status:  new                      
 Priority:  major        |   Milestone:  6.4.2                    
Component:  Raster       |     Version:  6.4.0                    
 Keywords:  png          |    Platform:  Unspecified              
      Cpu:  Unspecified  |  
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Comment(by hamish):

 Replying to [ticket:1347 kyngchaos]:
 > Just my luck - I upgrade to libpng 1.5

 apparently 1.5.0 was buggy, make sure you have 1.5.1+.


 > libpng 1.5 does not include the png_info struct (and others)
 > in the png.h header, it's now in a private pnginfo.h. r.out.png
 > needs this.  I didn't see any option in libpng compilation to
 > install these new headers.

 http://www.libpng.org/pub/png/src/libpng-1.2.x-to-1.4.x-summary.txt

 {{{
 2. Some obsolete/deprecated macros and functions have been removed.
 ...
    f. We removed the functions png_read_init(info_ptr),
       png_write_init(info_ptr), png_info_init(info_ptr),
       png_read_destroy(), and png_write_destroy().
       They have been deprecated since libpng-0.95.
 }}}

 Hamish

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Ticket URL: <https://trac.osgeo.org/grass/ticket/1347#comment:1>
GRASS GIS <http://grass.osgeo.org>