| 1 | This file gives information regarding cvs snapshots of flex. cvs
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| 2 | snapshots of flex contain the files which are under version control by
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| 3 | the flex maintainers for the flex project. These snapshots can be
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| 4 | found at:
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| 5 |
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| 6 | ftp://ftp.uncg.edu/people/wlestes/
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| 7 |
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| 8 | If you are not interested in flex development or you are not in need
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| 9 | of the latest bleeding-edge features, then cvs snapshots of flex are
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| 10 | not for you.
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| 11 |
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| 12 | When you get a distribution of flex, a large number of intermediate
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| 13 | files needed to make building flex easy are included. You don't have
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| 14 | that in a cvs snapshot.
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| 15 |
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| 16 | You will need various external tools in order to build the distribution. Here is
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| 17 | a (possibly incomplete) list of the required tools. Always get the latest
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| 18 | version of each tool; we list the versions used in development of
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| 19 | flex, but the listed versions may not work for you.
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| 20 |
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| 21 | compiler suite; e.g., gcc
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| 22 | bash or some other fairly robust sh-style shell
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| 23 | GNU bison; to generate parse.c from parse.y
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| 24 | GNU m4 1.4; required by BNU autoconf (yes, it *must* be GNU m4)
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| 25 | GNU autoconf 2.54 and GNU automake 1.7; for generating Makefiles etc.
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| 26 | GNU gettext 0.11.5; for i18n
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| 27 | flex (latest beta release); for bootstrap of scan.l
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| 28 | help2man 1.27; to generate man page
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| 29 | tar, gzip, etc.; for packaging of the source distribution
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| 30 | GNU texinfo 4.3d; to build and test the flex manual
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| 31 | perl; GNU automake and GNU autoconf now depend on perl to run
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| 32 | GNU indent 2.8; for indenting the flex source the way we want it done
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| 33 |
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| 34 | ONce you have all the necessary tools installed, life becomes
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| 35 | simple. To prepare the flex tree for building, run the script:
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| 36 |
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| 37 | $ ./autogen.sh
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| 38 |
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| 39 | in the top level of the flex source tree.
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| 40 | This script calls the various tools needed to get flex ready for the
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| 41 | GNU-style configure script to be able to work.
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| 42 |
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| 43 | From this point on, building flex follows the usual configure, make,
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| 44 | make install routine, almost. When configuring the flex tree, pass the
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| 45 | --enable-maintainer-mode option to configure. If you forget, you will
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| 46 | see errors about a missing file `version.texi'.
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