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This is librep, a Lisp system for UNIX. It contains a Lisp interpreter,
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byte-code compiler and virtual machine. Applications may use the Lisp
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interpreter as an extension language, or it may be used for stand-alone
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The Lisp dialect was originally inspired by Emacs Lisp, but with the
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worst features removed. It also borrows many ideas from Scheme.
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It is known to compile on at least Solaris/sparc and Linux/ix86; it is
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released under the terms of the GNU GPL, copyright John Harper
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http://librep.sourceforge.net/
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To compile this you'll need GNU make, the GNU MP library (see below)
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and GNU dbm installed. Basically, just do:
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If you're on a 64-bit architecture you may want to look at the
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`--with-value-type' configure option. This is an implicitly signed
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integer type (i.e. `int', `long', etc) that is wide enough to store an
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arbitrary pointer without losing any bits.
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It should be detected automatically by the configure script, but if not
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there are two most likely required settings:
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1. For a machine with 64-bit pointers and longs, but only 32-bit ints
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the following could be done:
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$ ./configure --with-value-type=long
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2. For a machine with both int and long 32-bits, but with 64-bit
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pointers and long long ints, then:
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$ ./configure --with-value-type="long long"
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If this option is set incorrectly (i.e. to an integer type that is too
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small) a run-time assertion will be triggered when the interpreter
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Also, if this option is set to anything but int, long, or long long,
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then the src/rep_config.h file will need to be edited for the constant
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suffix and printf conversion of the chosen type.
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rep uses GNU MP for it's bignum/rational implementation; you can find
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it at any GNU mirror. GMP versions 2 and 3 are both known to work
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(though version 3 is recommended)
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rep includes plugins providing language bindings for several libraries.
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Because these plugins are implemented as shared objects that are loaded
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at runtime, the libraries they wrap must also be shared libraries on
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most systems. This means that the installed libgdm must be shared, and
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if compiling with readline support, so must libreadline
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The configure script accepts the following options to build restricted
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versions of librep. The resulting library is binary-compatible with the
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Don't use GNU MP for bignums. Use `long long' as biggest integer
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type (if available, else just `long'). Also, there is no support
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for exact rationals, thus (/ 1 2) => 0.5 not 1/2
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--disable-continuations
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Don't include support for call/cc or multi-threading. This may be
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useful for machines with non-linear stacks (old crays?)
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obscure configure options
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-------------------------
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Trace all memory allocations. Not for general use
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When printing C stack backtraces, don't try to output symbolic
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Compile with flags enabling profiling. Also needs --enable-static
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to be given. Use the `srep' target in the src directory to build a
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statically linked interpreter (since gprof doesn't profile shared
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--with-malloc-alignment=BYTES
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The minimum alignment of memory returned from malloc (). Defaults
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to the machine's word size. It's unlikely this will ever need to be
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--with-stack-direction=DIRECTION
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Direction of stack growth. -1 for downwards (grows from higher
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addresses to lower addresses), +1 for upwards. If not given, will
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try to infer this automatically (though it has been known to fail)
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--enable-full-name-terminator=CHARACTER
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If the GECOS fields in your password file contain extra information
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after the user's full name, this option allows the separator
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character to be given, letting rep's user-full-name function return
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the correct information.
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E.g. some systems have GECOS as a comma-separated list of values,
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the first of which is the full name. For this case:
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--enable-full-name-terminator=,
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