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https://github.com/SawfishWM/librep

fast, lightweight, versatile lisp environment
https://github.com/SawfishWM/librep

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fast, lightweight, versatile lisp environment

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README 

        
[ this is -*-Text-*- ]



Complete documentation is given in info file.



This is librep, a Lisp system for UNIX, needed by Sawfish window

manager. It contains a Lisp interpreter, byte-code compiler and

virtual machine. Applications may use the Lisp interpreter as an

extension language, or it may be used for stand-alone scripts.



The Lisp dialect was originally inspired by Emacs Lisp, but with the

worst features removed. It also borrows many ideas from Scheme.



It is known to compile on at least Solaris/sparc and Linux, x86 and

x86-64.



It is released under the terms of the GNU GPL, 

copyright John Harper 



Maintainer until Aug 2008: John Harper

Maintainer since Aug 2008: Christopher Bratusek



For more details see:



	http://sawfish.wikia.com/



To compile this you'll need GNU make, and GNU dbm

installed. Basically, just do:



	$ ./configure

	$ make

	$ make install



Notes

=====



64-bit systems

--------------



Basically support of 64-bit systems works, but if not, read this:



You may want to look at the `--with-value-type' configure option. This

is an implicitly signed integer type (i.e. `int', `long', etc) that is

wide enough to store an arbitrary pointer without losing any bits.



It should be detected automatically by the configure script, but if not

there are two most likely required settings:



 1. For a machine with 64-bit pointers and longs, but only 32-bit ints

    the following could be done:



	$ ./configure --with-value-type=long



 2. For a machine with both int and long 32-bits, but with 64-bit

    pointers and long long ints, then:



	$ ./configure --with-value-type="long long"



If this option is set incorrectly (i.e. to an integer type that is too

small) a run-time assertion will be triggered when the interpreter

initialises itself.



Also, if this option is set to anything but int, long, or long long,

then the src/rep_config.h file will need to be edited for the constant

suffix and printf conversion of the chosen type.



libgmp

------



rep optionally uses GNU MP for its bignum/rational implementation;

you can find it at any GNU mirror. GMP versions 2 and 3 are both known

to work (though version 3 is recommended)



shared libraries

----------------



rep includes plugins providing language bindings for several libraries.

Because these plugins are implemented as shared objects that are loaded

at runtime, the libraries they wrap must also be shared libraries on

most systems. This means that the installed libgdm must be shared, and

if compiling with readline support, so must libreadline



cut-down version

----------------



The configure script accepts the following options to build restricted

versions of librep. The resulting library is binary-compatible with the

normal version.



  --without-gmp



    Don't use GNU MP for bignums. Use `long long' as biggest integer

    type (if available, else just `long'). Also, there is no support

    for exact rationals, thus (/ 1 2) => 0.5 not 1/2



  --disable-continuations



    Don't include support for call/cc or multi-threading. This may be

    useful for machines with non-linear stacks (old crays?)



obscure configure options

-------------------------



  --enable-dballoc



    Trace all memory allocations. Not for general use



  --disable-dbsyms



    When printing C stack backtraces, don't try to output symbolic

    addresses



  --enable-gprof



    Compile with flags enabling profiling. Also needs --enable-static

    to be given. Use the `srep' target in the src directory to build a

    statically linked interpreter (since gprof doesn't profile shared

    libraries)



  --with-malloc-alignment=BYTES



    The minimum alignment of memory returned from malloc (). Defaults

    to the machine's word size. It's unlikely this will ever need to be

    specified explicitly



  --with-stack-direction=DIRECTION



    Direction of stack growth. -1 for downwards (grows from higher

    addresses to lower addresses), +1 for upwards. If not given, will

    try to infer this automatically (though it has been known to fail)



  --enable-full-name-terminator=CHARACTER



    If the GECOS fields in your password file contain extra information

    after the user's full name, this option allows the separator

    character to be given, letting rep's user-full-name function return

    the correct information.



    E.g. some systems have GECOS as a comma-separated list of values,

    the first of which is the full name. For this case:



	--enable-full-name-terminator=,