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1 perry 1 IFNAMES
2 !!!IFNAMES
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 SEE ALSO
7 AUTHORS
8 ----
9 !!NAME
10
11
12 ifnames - print identifiers that a package uses in C preprocessor conditionals
13 !!SYNOPSIS
14
15
16 __ifnames__ [[ __--help__ | __-h__ ] [[
17 __--version__ | __-V__ ]
18 !!DESCRIPTION
19
20
21 __ifnames__ can help when writing a __configure.ac__
22 for a software package. It prints the identifiers that the
23 package already uses in C preprocessor conditionals. If a
24 package has already been set up to have some portability,
25 this program can help you figure out what its
26 __configure__ needs to check for. It may help fill in
27 some gaps in a __configure.ac__ generated by
28 __autoscan__ (see autoscan(1)).
29
30
31 __ifnames__ scans all of the C source files named on the
32 command line (or the standard input, if none are given) and
33 writes to the standard output a sorted list of all the
34 identifiers that appear in those files in __#if__,
35 __#elif__, __#ifdef__, or __#ifndef__ directives.
36 It prints each identifier on a line, followed by a
37 space-separated list of the files in which that identifier
38 occurs.
39
40
41 __ifnames__ accepts the following options:
42
43
44 __--help__
45
46
47 __-h__
48
49
50 Print a summary of the command line options and
51 exit.
52
53
54 __--version__
55
56
57 __-V__
58
59
60 Print the version number of Autoconf and exit.
61 !!SEE ALSO
62
63
64 autoconf(1), autoheader(1),
65 autoreconf(1), autoscan(1),
66 autoupdate(1)
67 !!AUTHORS
68
69
2 perry 70 David !MacKenzie, with help from Franc,ois Pinard, Karl
71 Berry, Richard Pixley, Ian Lance Taylor, Roland !McGrath,
1 perry 72 Noah Friedman, David D. Zuhn, and many others. This manpage
73 written by Ben Pfaff
74 autoconf__ package.
75 ----
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