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- As of GC6.0alpha8, we attempt to support GNU-style builds based on automake,
- autoconf and libtool. This is based almost entirely on Tom Tromey's work
- with gcj.
- To build and install libraries use
- configure; make; make install
- The advantages of this process are:
- 1) It should eventually do a better job of automatically determining the
- right compiler to use, etc. It probably already does in some cases.
- 2) It tries to automatically set a good set of default GC parameters for
- the platform (e.g. thread support). It provides an easier way to configure
- some of the others.
- 3) It integrates better with other projects using a GNU-style build process.
- 4) It builds both dynamic and static libraries.
- The known disadvantages are:
- 1) The build scripts are much more complex and harder to debug (though largely
- standard). I don't understand them all, and there's probably lots of redundant
- stuff.
- 2) It probably doesn't work on all Un*x-like platforms yet. It probably will
- never work on the rest.
- 3) The scripts are not yet complete. Some of the standard GNU targets don't
- yet work. (Corrections/additions are very welcome.)
- The distribution should contain all files needed to run "configure" and "make",
- as well as the sources needed to regenerate the derived files. (If I missed
- some, please let me know.)
- Note that the distribution comes with a "Makefile" which will be overwritten
- by "configure" with one that is not at all equiavelent to the original. The
- distribution contains a copy of the original "Makefile" in "Makefile.direct".
- Important options to configure:
- --prefix=PREFIX install architecture-independent files in PREFIX
- [/usr/local]
- --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
- [same as prefix]
- --enable-threads=TYPE choose threading package
- --enable-parallel-mark parallelize marking and free list construction
- --enable-full-debug include full support for pointer backtracing etc.
- Unless --prefix is set (or --exec-prefix or one of the more obscure options),
- make install will install libgc.a and libgc.so in /usr/local/bin, which
- would typically require the "make install" to be run as root.
- Most commonly --enable-threads=posix or will be needed. --enable-parallel-mark
- is recommended for multiprocessors if it is supported on the platform.
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