As with all make-based build systems, variables used in the makefiles can be overridden by the user. This section describes variables that developers may find useful to override while compiling. The variables are listed alphabetically.
Provide an alternate installation prefix than what was set at configuration time. Refer to Chapter 7, Installing VR Juggler for more information about installing VR Juggler.
Define an alternate ABI/ISA combination than the default set by configure. This accepts exactly the same values as the --with-abi argument to the configure script. Results of its use can be seen near the bottom of Makefile.base.
Do not clobber the build environment (via the 'clobber' target) before running the 'world' target. Set this variable to 1 to enable it.
Disable compiling and installing of VRJConfig by setting this variable to 1 when building. This is very handy when VRJConfig is not building properly or is not needed for whatever reason.
Set an alternate directory in which object files are created. The default method is to use the platform- and ABI-specific directory when compiling from the top-level directory or to use the current directory when compiling in a subdirectory.
Choose an alternate suffix for object files that are compiled. When compiling with MS Visual C++, “obj” is the default. In all other cases, “o” is the default. Only specify the suffix, not the '.' as that is always present.
Provide a different version of a Perl 5.004 or newer binary than what configure found.