projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | As of GC6.0alpha8, we attempt to support GNU-style builds based on automake, |
| 2 | autoconf and libtool. This is based almost entirely on Tom Tromey's work | |
| 3 | with gcj. | |
| 4 | ||
| 5 | To build and install libraries use | |
| 6 | ||
| 7 | configure; make; make install | |
| 8 | ||
| 9 | The advantages of this process are: | |
| 10 | ||
| 11 | 1) It should eventually do a better job of automatically determining the | |
| 12 | right compiler to use, etc. It probably already does in some cases. | |
| 13 | ||
| 14 | 2) It tries to automatically set a good set of default GC parameters for | |
| 15 | the platform (e.g. thread support). It provides an easier way to configure | |
| 16 | some of the others. | |
| 17 | ||
| 18 | 3) It integrates better with other projects using a GNU-style build process. | |
| 19 | ||
| 20 | 4) It builds both dynamic and static libraries. | |
| 21 | ||
| 22 | The known disadvantages are: | |
| 23 | ||
| 24 | 1) The build scripts are much more complex and harder to debug (though largely | |
| 25 | standard). I don't understand them all, and there's probably lots of redundant | |
| 26 | stuff. | |
| 27 | ||
| 28 | 2) It probably doesn't work on all Un*x-like platforms yet. It probably will | |
| 29 | never work on the rest. | |
| 30 | ||
| 31 | 3) The scripts are not yet complete. Some of the standard GNU targets don't | |
| 32 | yet work. (Corrections/additions are very welcome.) | |
| 33 | ||
| 34 | The distribution should contain all files needed to run "configure" and "make", | |
| 35 | as well as the sources needed to regenerate the derived files. (If I missed | |
| 36 | some, please let me know.) | |
| 37 | ||
| 38 | Note that the distribution comes with a "Makefile" which will be overwritten | |
| 39 | by "configure" with one that is not at all equiavelent to the original. The | |
| 40 | distribution contains a copy of the original "Makefile" in "Makefile.direct". | |
| 41 | ||
| 42 | Important options to configure: | |
| 43 | ||
| 44 | --prefix=PREFIX install architecture-independent files in PREFIX | |
| 45 | [/usr/local] | |
| 46 | --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX | |
| 47 | [same as prefix] | |
| 48 | --enable-threads=TYPE choose threading package | |
| 49 | --enable-parallel-mark parallelize marking and free list construction | |
| 50 | --enable-full-debug include full support for pointer backtracing etc. | |
| 51 | ||
| 52 | Unless --prefix is set (or --exec-prefix or one of the more obscure options), | |
| 53 | make install will install libgc.a and libgc.so in /usr/local/bin, which | |
| 54 | would typically require the "make install" to be run as root. | |
| 55 | ||
| 56 | Most commonly --enable-threads=posix or will be needed. --enable-parallel-mark | |
| 57 | is recommended for multiprocessors if it is supported on the platform. | |
| 58 | ||
| 59 |