m4
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 mandatory 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]
-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
-G, --traditional
suppress all GNU extensions
-H, --hashsize=PRIME
set symbol lookup hash table size [509]
-F, --freeze-state=FILE
produce a frozen state on FILE at end
-d, --debug[=FLAGS]
set debug level (no FLAGS implies `aeq')
--debugfile=FILE
redirect debug and trace output
-l, --arglength=NUM
restrict macro tracing size
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
V
shorthand for all of the above flags
If defined, the environment variable `M4PATH' is a colon-separated list
of directories included after any specified 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 2007 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 redistribute it. There is NO WARRANTY, to the extent permitted by law.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
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.
