[gdal-dev] support for libpng 1.5.0

[Jeff McKenna]

Hi Ben,

A few weeks ago I also had troubles compiling gdal-trunk with 
libpng-1.5.0 on Windows and decided against upgrading my libpng...so I 
am also curious to know if that version of libpng is supported by GDAL yet.

-jeff

-- 
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/




On 11-01-17 12:10 AM, Ben Discoe wrote:
> I tried building GDAL 1.7.3 this evening and found that it did not support the new libpng 1.5.0.
> I also looked at the archive for GDAL 1.8.0 RC2, and it seems to have the same code in question.
>
> The changes are small, just a few like this:
>
> <     VSIFFlushL( (png_FILE_p) png_get_io_ptr(png_ptr->io_ptr) );
>>     VSIFFlushL( (png_FILE_p) png_get_io_ptr(png_ptr) );
>
> And one like this:
>
> <     jmp_buf* psSetJmpContext = (jmp_buf*) png_ptr->error_ptr;
>>     jmp_buf* psSetJmpContext = (jmp_buf*) png_get_error_ptr(png_ptr);
>
> On a personal note, it feels good to be back here again, building GDAL.  I started with GDAL back at the dawn of time, mid-2000, and it's been a long, happy relationship.