#266 libpng 1.6.30 fails to build on arm64

[Antoine Brodin]

Hi,

libpng 1.6.30 fails to build on arm64 on freebsd (it used to build fine with version 1.6.29)

The error is:

%%%
libtool: compile: cc -DHAVE_CONFIG_H -I. -O2 -pipe -fno-strict-aliasing -MT arm/filter_neon.lo -MD -MP -MF arm/.deps/filter_neon.Tpo -c arm/filter_neon.S -fPIC -DPIC -o arm/.libs/filter_neon.o
arm/../pngpriv.h:476:24: error: unexpected token in argument list
typedef unsigned long int png_ptruint;
^
*** Error code 1

Stop.
%%%

I worked around the issue with attached patch, but i'm not sure it's correct.

[Glenn Randers-Pehrson]

Thanks. I think your patch is a little better than the one I pushed to
the git libpng16 branch yesterday.

[Glenn Randers-Pehrson]

Fixed in libpng-1.6.31beta01.