[MapServer-users] mapcache_seed libpng issue

[Johannes Paul]

Hello,
I'm running mapserver 7.6.3 and mapcache 1.12 on Centos7. Both are compiled
with libpng 1.5.13 and GDAL 3.2.1. I can get my mapserver layers as well as
mapcache layers just fine, however when I try to run mapcache_seed I get
the following error:
```
libpng warning: Application built with libpng-1.5.13 but running with 1.6.37
failed to seed tile z0, x0, y0:
failed to allocate png_struct structure
failed to load image data from metatile
```
Is it a requirement for mapcache and/or mapserver to be built against
libpng 1.6 ?
Thanks
Johannes
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