[MacPorts] #37561: port install VisualBoyAdvance fails

[MacPorts]

#37561: port install VisualBoyAdvance fails
---------------------+--------------------------------
 Reporter:  egor7@…  |      Owner:  macports-tickets@…
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:  MacPorts 2.1.3
Component:  ports    |    Version:  2.1.2
 Keywords:           |       Port:  VisualBoyAdvance
---------------------+--------------------------------
 ''port install VisualBoyAdvance'' fails. Part of main.log:
 {{{
 :info:build ../Util.cpp: In function ‘bool utilWritePNGFile(const char*,
 int, int, u8*)’:
 :info:build ../Util.cpp:82: error: invalid use of incomplete type ‘struct
 png_struct_def’
 :info:build /opt/local/include/png.h:857: error: forward declaration of
 ‘struct png_struct_def’
 :info:build ../Util.cpp: In function ‘gzFile_s* utilGzOpen(const char*,
 const char*)’:
 :info:build ../Util.cpp:987: error: invalid conversion from ‘int
 (*)(void*, void*, unsigned int)’ to ‘int (*)(gzFile_s*, void*, unsigned
 int)’
 :info:build make[2]: *** [Util.o] Error 1
 }}}

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Ticket URL: <https://trac.macports.org/ticket/37561>
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