* config/os2/dir.cf
* use $(COMSPEC) instead of calling cmd.exe directly
* config/os2/gcc.cf
* rewrote create_library rule to work with make -jn without
breaking shell environment/command line size.
* source/rtl/hbproces.c
* included sys/waith.h in OS/2 build. I think that initial
#defines can be simplified a bit.
* config/os2/install.cf
* rewrote install_rule to work with make -jn without
breaking shell environment/command line size.
* config/lib.cf
* removed unnecessary double quotes around TOP definition
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