Undoing cmake.mk additions to CMAKE_ARGS

["J. Lewis Muir" <jlmuir%imca-cat.org@localhost>]

Hello.

I found that mk/configure/cmake.mk adds the following to CMAKE_ARGS:

  -DCMAKE_INSTALL_LIBDIR:PATH=lib
  -DCMAKE_INSTALL_MANDIR:PATH=${PKGMANDIR}
  -DCMAKE_INSTALL_INFODIR:PATH=${PKGINFODIR}
  -DCMAKE_INSTALL_LOCALEDIR:PATH=${PKGLOCALEDIR}/locale

My problem is that these are all relative paths, but the local package
I'm trying to build, PLplot (not in pkgsrc (yet)), expects these to be
absolute paths.

Is there a way to undo the above mk/configure/cmake.mk additions
to CMAKE_ARGS in my pkgsrc package so that I can specify absolute
paths for those variables instead of relative paths?  (I tried just
adding my own definitions to CMAKE_ARGS in my pkgsrc package Makefile
using "CMAKE_ARGS+= [DEFINITION]", and I tried removing the cmake.mk
definitions using "CMAKE_ARGS-= [DEFINITION]", but neither of those
worked.  I'm assuming that means mk/configure/cmake.mk gets included
later, maybe by the "../../mk/bsd.pkg.mk" include at the bottom of the
Makefile.)

I have patched PLplot's cmake/modules/instdirs.cmake to make it convert
relative paths to absolute paths for pkgsrc, but I'd rather not have to
do that.

On a related note, in Modules/GNUInstallDirs.cmake in CMake 2.8.12.2, it
says the following:

===
# - Define GNU standard installation directories
# Provides install directory variables as defined for GNU software:
#  http://www.gnu.org/prep/standards/html_node/Directory-Variables.html
# Inclusion of this module defines the following variables:
#  CMAKE_INSTALL_<dir>      - destination for files of a given type
#  CMAKE_INSTALL_FULL_<dir> - corresponding absolute path
# where <dir> is one of:
===

So perhaps it would be good for mk/configure/cmake.mk to also set the
corresponding CMAKE_INSTALL_FULL_<dir> variables?  (PLplot is probably
unaware of these, so it wouldn't help me there, but it might be good in
general.)

Thank you!

Lewis