Hi
I am trying to compile GDAL 3.3.2 for ARM (apple M1), and I have problems
with the included libpng. There is a missing "arm" folder in libpng. Is
that intentional? How can I build it?
NEON support is detected, so libpng try to use NEON optimized functions,
but the implementation of those is missing, so I get
Undefined symbols for architecture arm64:
"_png_do_expand_palette_rgb8_neon", referenced from:
_png_do_read_transformations in pngrtran.o
"_png_do_expand_palette_rgba8_neon", referenced from:
_png_do_read_transformations in pngrtran.o
"_png_init_filter_functions_neon", referenced from:
_png_read_filter_row in pngrutil.o
"_png_riffle_palette_neon", referenced from:
_png_do_read_transformations in pngrtran.o
Thanks
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