exactly that. Assume that is a permanent change so we abandon all use
of make -f Makefile_yplot and make -f Makefile_yplotl, and instead keep
the name as Makefile, and simply run the make command without -f option.
Permanently abandon sed to modify generated Makefile. Instead, use
command-line macro definitions for Makefile which are a lot more convenient.
This also means we don't have to do complicated renaming schemes to modify
the Makefile with sed and mv the modified version back to the required
Makefile name.
Specify the required link flags by specifying LIB_XTRA on the make
command-line. This might have to be changed if that (internal?) name is
changed in the generated Makefile.
Work around a bug with the Makefile generated by yorick-1.5.14. The bug is
some screwup with the "unused" library that occurs by default. Bypass for
now by specifying PKG_LIBS= on make command line, but this will probably
need to be revisited if that name is changed or the bug fixed.