m4
(1g)
Name
m4 - macro processor
Synopsis
m4 [OPTION]... [FILE]...
Description
User Commands M4(1)
NAME
m4 - macro processor
SYNOPSIS
m4 [OPTION]... [FILE]...
DESCRIPTION
Process macros in FILEs. If no FILE or if FILE is `-',
standard input is read.
Mandatory or optional arguments to long options are manda-
tory or optional for short options too.
Operation modes:
--help
display this help and exit
--version
output version information and exit
-E, --fatal-warnings
once: warnings become errors, twice: stop execution at
first error
-i, --interactive
unbuffer output, ignore interrupts
-P, --prefix-builtins
force a `m4_' prefix to all builtins
-Q, --quiet, --silent
suppress some warnings for builtins
--warn-macro-sequence[=REGEXP]
warn if macro definition matches REGEXP, default
\$\({[^}]*}\|[0-9][0-9]+\)
Preprocessor features:
-D, --define=NAME[=VALUE]
define NAME as having VALUE, or empty
-I, --include=DIRECTORY
append DIRECTORY to include path
-s, --synclines
generate `#line NUM "FILE"' lines
-U, --undefine=NAME
undefine NAME
Limits control:
-g, --gnu
GNU M4 1.4.12 Last change: October 2008 1
User Commands M4(1)
override -G to re-enable GNU extensions
-G, --traditional
suppress all GNU extensions
-H, --hashsize=PRIME
set symbol lookup hash table size [509]
-L, --nesting-limit=NUMBER
change nesting limit, 0 for unlimited [0]
Frozen state files:
-F, --freeze-state=FILE
produce a frozen state on FILE at end
-R, --reload-state=FILE
reload a frozen state from FILE at start
Debugging:
-d, --debug[=FLAGS]
set debug level (no FLAGS implies `aeq')
--debugfile=FILE
redirect debug and trace output
-l, --arglength=NUM
restrict macro tracing size
-t, --trace=NAME
trace NAME when it is defined
FLAGS is any of:
a show actual arguments
c show before collect, after collect and after call
e show expansion
f say current input file name
i show changes in input files
l say current input line number
p show results of path searches
q quote values as necessary, with a or e flag
t trace for all macro calls, not only traceon'ed
x add a unique macro call id, useful with c flag
GNU M4 1.4.12 Last change: October 2008 2
User Commands M4(1)
V shorthand for all of the above flags
If defined, the environment variable `M4PATH' is a
colon-separated list of directories included after any spec-
ified by `-I'.
Exit status is 0 for success, 1 for failure, 63 for frozen
file version mismatch, or whatever value was passed to the
m4exit macro.
AUTHOR
Written by Rene' Seindal.
REPORTING BUGS
Report bugs to <bug-m4@gnu.org>.
COPYRIGHT
Copyright (C) 2008 Free Software Foundation, Inc. License
GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redis-
tribute it. There is NO WARRANTY, to the extent permitted
by law.
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------------+
|Availability | developer/macro/gnu-m4 |
+---------------+------------------------+
|Stability | Committed |
+---------------+------------------------+
SEE ALSO
The full documentation for m4 is maintained as a Texinfo
manual. If the info and m4 programs are properly installed
at your site, the command
info m4
should give you access to the complete manual.
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from
http://ftp.gnu.org/gnu/m4/m4-1.4.12.tar.gz
GNU M4 1.4.12 Last change: October 2008 3
User Commands M4(1)
Further information about this software can be found on the
open source community website at http://www.gnu.org/soft-
ware/m4/.
GNU M4 1.4.12 Last change: October 2008 4