Log message:
png shlib name changed for png>=1.5.0, so bump PKGREVISIONs.

Log message:
Bump PKGREVISION for libpng shlib name change.
Also add some patches to remove use of deprecated symbols and fix other
problems when looking for or compiling against libpng-1.4.x.

Log message:
Made the package build for me. The error message was:

./parsegen  -D__UNIXSDL__ -D__OPENGL__ [...]
Shared object "libz.so.1" not found

Log message:
Fix build on DragonrFly.

Log message:
Needs zlib-1.2.3 or newer.

Log message:
Changes 1.51:
----------
  - Rejoice for finally having 224 lines and them being shown properly in all
    cases.
  - IRQ and timing fixes (fixes Chrono Trigger issues, Super Mario World, and
    others).
  - Fixed bug with certain commandline parameters permanently overwriting
    config file settings.
  - Fixed bug with loading new ZMVs of a different version.
  - Loading ZMV with ROM mismatch prints a message.
  - Movie menu now has tabs and only shows proper options when available.
  - Slight improvement to the Custom Res functionality.
  - Keep4_3Ratio option now only shows when necessary.
  - PNG files now use extended height in extended height mode.
  - Pausing, rewinding, and fast fowarding are disabled during movie dumping.
  - You can now force a movie dump length shorter or longer than the actual ZMV
    length.
  - Fixed Bilinear Filtering on startup.
  - More...

Log message:
Remove superfluous chunk.

Log message:
Fix PR#35251

Log message:
Bump PKGREVISION and BUILDLINK_ABI_DEPENDS (where applicable)
for SDL shlib changes.

Log message:
Fix stupid gentenv-linuxism: don't assume it is malloced.