1 THIS TARBALL IS NOT A FULL DISTRIBUTION.
3 The contents of this tarball is designed to be incorporated into
4 software packages that utilize the AutoOpts option automation package
5 and are intended to be installed on systems that may not have libopts
6 installed. It is redistributable under the terms of either the LGPL
7 (see COPYING.lgpl) or under the terms of the advertising clause free BSD
8 license (see COPYING.mbsd).
10 Usage Instructions for autoconf/automake/libtoolized projects:
12 1. Install the unrolled tarball into your package source tree,
13 copying ``libopts.m4'' to your autoconf macro directory.
15 In your bootstrap (pre-configure) script, you can do this:
17 rm -rf libopts libopts-*
18 gunzip -c `autoopts-config libsrc` | tar -xvf -
19 mv -f libopts-*.*.* libopts
20 cp -fp libopts/m4/*.m4 m4/.
22 I tend to put my configure auxiliary files in "m4".
23 Whatever directory you choose, if it is not ".", then
24 be sure to tell autoconf about it with:
28 This is one macro where you *MUST* remember to *NOT* quote
29 the argument. If you do, automake will get lost.
31 2. Add an invocation of either LIBOPTS_CHECK or LIBOPTS_CHECK_NOBUILD
32 to your configure.ac file. See LIBOPTS_CHECK: below for details.
34 3. Add the following to your top level ``Makefile.am'' file:
37 SUBDIRS += $(LIBOPTS_DIR)
40 where ``<...>'' can be whatever other files or directories you may
41 need. The SUBDIRS must be properly ordered. *PLEASE NOTE* it is
42 crucial that the SUBDIRS be set under the control of an automake
43 conditional. To work correctly, automake has to know the range of
44 possible values of SUBDIRS. It's a magical name with magical
45 properties. ``NEED_LIBOPTS'' will be correctly set by the
46 ``LIBOPTS_CHECK'' macro, above.
48 4. Add ``$(LIBOPTS_CFLAGS)'' to relevant compiler flags and
49 ``$(LIBOPTS_LDADD)'' to relevant link options whereever
50 you need them in your build tree.
52 5. Make sure your object files explicitly depend upon the
53 generated options header file. e.g.:
55 $(prog_OBJECTS) : prog-opts.h
56 prog-opts.h : prog-opts.c
57 prog-opts.c : prog-opts.def
61 If you are creating man pages and texi documentation from
62 the program options, you will need these rules somewhere, too:
65 prog.1 : prog-opts.def
66 autogen -Tagman-cmd.tpl -bprog prog-opts.def
68 invoke-prog.texi : prog-opts.def
69 autogen -Tagtexi-cmd.tpl prog-opts.def
71 If your package does not utilize the auto* tools, then you
72 will need to hand craft the rules for building the library.
76 The arguments to both macro are a relative path to the directory with
77 the libopts source code. It is optional and defaults to "libopts".
78 These macros work as follows:
80 1. LIBOPTS_CHECK([libopts/rel/path/optional])
82 Adds two command-line options to the generated configure script,
83 --enable-local-libopts and --disable-libopts-install. AC_SUBST's
84 LIBOPTS_CFLAGS, LIBOPTS_LDADD, and LIBOPTS_DIR for use in
85 Makefile.am files. Adds Automake conditional NEED_LIBOPTS which
86 will be true when the local copy of libopts should be built. Uses
87 AC_CONFIG_FILES([$libopts-dir/Makefile]) to cause the local libopts
88 into the package build. If the optional relative path to libopts is
89 not provided, it defaults to simply "libopts".
91 2. LIBOPTS_CHECK_NOBUILD([libopts/rel/path/optional])
93 This variant of LIBOPTS_CHECK is useful when multiple configure.ac
94 files in a package make use of a single libopts tearoff. In that
95 case, only one of the configure.ac files should build libopts and
96 others should simply use it. Consider this package arrangment:
104 The parent package all-tools contains a subpackage common-tools
105 which can be torn off and used independently. Programs configured
106 by both configure.ac files link against the common-tools/libopts
107 tearoff, when not using the system's libopts. The top-level
108 configure.ac uses LIBOPTS_CHECK_NOBUILD([common-tools/libopts]),
109 while common-tools/configure.ac uses LIBOPTS_CHECK. The difference
110 is LIBOPTS_CHECK_NOBUILD will never build the libopts tearoff,
111 leaving that to the subpackage configure.ac's LIBOPTS_CHECK.
112 Specifically, LIBOPTS_CHECK_NOBUILD always results in the
113 NEED_LIBOPTS Automake conditional being false, and does not invoke
114 AC_CONFIG_FILES(path-to-libopts/Makefile).
118 This material is Copyright (c) 1992-2012 by Bruce Korb. You are
119 licensed to use this under the terms of either the GNU Lesser General
120 Public License (see: COPYING.lgpl), or, at your option, the modified
121 Berkeley Software Distribution License (see: COPYING.mbsd). Both of
122 these files should be included with this tarball.