README
1OpenFst - Release 1.3
2
3OpenFst is a library for constructing, combining, optimizing, and
4searching weighted finite-state transducers (FSTs).
5
6REQUIREMENTS:
7 This version is known to work under Linux, MacOS, and Solaris using
8 g++ (>= 4.1). Expected to work wherever adequate POSIX (dlopen, ssize_t,
9 basename), c99 (snprintf, strtoll, <stdint.h>), and tr1 (<tr1/ordered_set>,
10 <tr1/ordered_map>) support are available.
11
12INSTALLATION:
13 Follow the generic GNU build system instructions in ./INSTALL. We
14 recommend configuring with --enable-static=no for faster
15 compiles.
16
17 Optional features:
18 --enable-bin Build fst::script and command-line binaries (def: yes)
19 --enable-compact-fsts Enable all CompactFst classes (def: no)
20 --enable-const-fsts Enable all ConstFst classes (def: no)
21 --enable-far Enable FAR (FST Archive) extension (def: no)
22 --enable-lookahead-fsts Enable LookAheadFst classes (def: no)
23 --enable-ngram-fsts Enable NGramFst classes (def: no)
24 --enable-pdt Experimental push-down transducer extensions (def: no)
25
26 Configuring with --enable-bin=no gives very fast compiles, but
27 excludes the command line utilities.
28
29 Compiling with '-Wall -Wno-sign-compare' under g++ should give no
30 warnings from this library.
31
32USAGE:
33 Assuming you've installed under the default /usr/local, the FST
34 binaries are found on /usr/local/bin. To use in your own program,
35 include <fst/fstlib.h> and compile with '-I /usr/local/include'.
36 Link against /usr/local/lib/libfst.so and -ldl. Set your
37 LD_LIBRARY_PATH (or equivalent) to contain /usr/local/lib. The
38 linking is, by default, dynamic so that the Fst and Arc type DSO
39 extensions can be used correctly if desired. Any extensions will
40 be found under /usr/local/include/fst/extensions and /usr/local/lib/fst.
41
42DOCUMENTATION:
43 See www.openfst.org for general documentation.
44 See ./NEWS for updates since the last release.
45
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