lang/ocaml generated PLIST

[nia <nia%NetBSD.org@localhost>]

It seems to me that the OCaml PLIST contains too many target-specific
entries, and complex conditionals such as these:


# Optional components built only on certain platforms.
.if (${MACHINE_ARCH} == "i386") || (${MACHINE_ARCH} == "powerpc") || \
    !empty(MACHINE_ARCH:M*arm*) || (${MACHINE_ARCH} == "aarch64") || \
    (${MACHINE_ARCH} == "x86_64")
BUILD_TARGET+=          opt opt.opt
TEST_PROGRAM+=          ocamltest.opt
PLIST.ocaml-opt=        yes
.  if empty(MACHINE_PLATFORM:MDarwin-*-powerpc) && \
      empty(MACHINE_PLATFORM:MSunOS-*-i386) && \
      (${MACHINE_ARCH} != "aarch64")
PLIST.ocaml-prof=       yes 
.  endif
.endif

# XXX This conditional is not complete.  It should match the
# conditional in ocaml-x.y.z/configure.
.if (${MACHINE_ARCH} == "i386") || (${MACHINE_ARCH} == "x86_64") || \
    (${MACHINE_ARCH} == "aarch64") || (${MACHINE_ARCH} == "powerpc") || \  
    !empty(MACHINE_ARCH:Mearm*)
.  if !empty(MACHINE_PLATFORM:MLinux-*-*) || \
      !empty(MACHINE_PLATFORM:MFreeBSD-*-*) || \
      !empty(MACHINE_PLATFORM:MDragonFly-*-*) || \
      !empty(MACHINE_PLATFORM:MNetBSD-*-*) || \
      !empty(MACHINE_PLATFORM:MDarwin-*-*) || \
      !empty(MACHINE_PLATFORM:MSunOS-*-*)
PLIST.ocaml-nat=        yes
.  endif
.endif

which are often incomplete and incorrect, leading to errors like this:
http://ftp.ziaspace.com/pub/pkgsrc/reports/9.0_2021Q1/20210331.1353/ocaml-4.11.2/install.log

Should lang/ocaml be switched to a generated PLIST?