1ICU-CONFIG(1) ICU 73.2 Manual ICU-CONFIG(1)
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7 icu-config - output ICU build options
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10 icu-config [ --bindir ] [ --cc ] [ --cflags ] [ --cppflags ] [
11 --cppflags-searchpath ] [ --cxx ] [ --cxxflags ] [ --detect-prefix ] [
12 --exec-prefix ] [ --exists ] [ --help, -?, --usage ] [ --icudata ] [
13 --icudata-install-dir ] [ --icudata-mode ] [ --icudatadir ] [ --invoke
14 ] [ --invoke=prog ] [ --ldflags ] [ --ldflags-libsonly ] [ --ld‐
15 flags-searchpath ] [ --ldflags-system ] [ --ldflags-icuio ] [ --mandir
16 ] [ --prefix ] [ --prefix=prefix ] [ --sbindir ] [ --shared-datadir ] [
17 --sysconfdir ] [ --unicode-version ] [ --version ] [ --incfile ]
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23 icu-config simplifies the task of building and linking against ICU as
24 compared to manually configuring user makefiles or equivalent. Because
25 icu-config is an executable script, it also solves the problem of lo‐
26 cating the ICU libraries and headers, by allowing the system PATH to
27 locate it.
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30 icu-config can be used without a makefile. The command line below is
31 sufficient for building a single-file c++ program against ICU. (For ex‐
32 ample, icu/source/samples/props/props.cpp)
33 `icu-config --cxx --cxxflags --cppflags --ldflags` -o props
35 props.cpp
36 More commonly, icu-config will be called from within a makefile, and
38 used to set up variables. The following example also builds the props
39 example.
40 CC=$(shell icu-config --cc)
42 CXX=$(shell icu-config --cxx)
44 CPPFLAGS=$(shell icu-config --cppflags)
46 CXXFLAGS=$(shell icu-config --cxxflags)
48 LDFLAGS =$(shell icu-config --ldflags)
50 all: props
52 props.o: props.cpp
54 make(1) will automatically use the above variables.
56
58 --bindir
59 Prints the binary (executable) directory path. Normally equiva‐
60 lent to 'bin'. ICU user-executable applications and scripts are
61 found here.
62 --cc Print the C compiler used. Equivalent to the $(CC) Makefile
64 variable.
65 --cflags
67 Print the C compiler flags. Equivalent to the $(CFLAGS) Makefile
68 variable. Does NOT include preprocessor directives such as in‐
69 clude path or defined symbols. Examples include debugging (-g)
70 and optimization flags
71 --cppflags
73 Print the C preprocessor flags. Equivalent to the $(CPPFLAGS)
74 Makefile variable. Examples are -I include paths and -D define
75 directives.
76 --cppflags-searchpath
78 Print the C preprocessor flags, as above but only -I search
79 paths.
80 --cxx Print the C++ compiler. Equivalent to the $(CXX) Makefile vari‐
82 able.
83 --cxxflags
85 Print the C++ compiler flags. Equivalent to the $(CXXFLAGS)
86 Makefile variable.
87 --detect-prefix
89 If ICU has been moved from its installed location, prepending
90 this flag to other icu-config calls will attempt to locate ICU
91 relative to where the icu-config script has been located. Can be
92 used as a last-chance effort if the ICU install has been dam‐
93 aged.
94 --exec-prefix
96 Print the prefix used for executable program directories (such
97 as bin, sbin, etc). Normally the same as the prefix.
98 --exists
100 Script will return with a successful (0) status if ICU seems to
101 be installed and located correctly, otherwise an error message
102 and nonzero status will be displayed.
103 --help, -?,--usage
105 Print a help and usage message.
106 --icudata
108 Print the shortname of the ICU data file. This does not include
109 any suffix such as .dat, .dll, .so, .lib, .a, etc nor does it
110 include prefixes such as 'lib'. It may be in the form icudt21b
111 --icudata-install-dir
113 Print the directory where ICU packaged data should be installed.
114 Can use as pkgdata(1)'s --install option.
115 --icudata-mode
117 Print the default ICU pkgdata mode, such as dll or common. Can
118 use as pkgdata(1)'s --mode option.
119 --icudatadir
121 Print the path to packaged archive data. (should be where
122 $ICU_DATA or equivalent default path points.) Will NOT point to
123 the libdir.
124 --invoke
126 If ICU is not installed in a location where the operating system
127 will locate its shared libraries, this option will print out
128 commands so as to set the appropriate environment variables to
129 load ICU's shared libraries. For example, on many systems a
130 variable named LD_LIBRARY_PATH or equivalent must be set.
131 --invoke=prog
133 Same as the --invoke option, except includes options for invok‐
134 ing a program named prog. If prog is the name of an ICU tool,
135 such as genrb(1), then icu-config will also include the full
136 path to that tool.
137 --ldflags
139 Print any flags which should be passed to the linker. These may
140 include -L for library search paths, and -l for including ICU
141 libraries. By default, this option will attempt to link in the
142 "common" (libicuuc) and "i18n" (libicui18n) libraries, as well
143 as the data library. If additional libraries are required, any
144 of the following two flags may be added in conjunction with this
145 one, for example "--ldflags --ldflags-icuio" if the icuio li‐
146 brary is required in addition to the standard ICU libraries.
147 Equivalent to the $(LDFLAGS) Makefile variable.
148 --ldflags-layout
150 Prints the link option for the ICU layout library.
151 --ldflags-icuio
153 Prints the link option to add the ICU I/O package
154 --ldflags-libsonly
156 Similar to --ldflags but only includes the -l options.
157 --ldflags-searchpath
159 Similar to --ldflags but only includes the -L search path op‐
160 tions.
161 --ldflags-system
163 Similar to --ldflags but only includes system libraries (such as
164 pthreads) --mandir Prints the location of the installed ICU man
165 pages. Normally (man)
166 --prefix
168 Prints the prefix (base directory) under which the installed ICU
169 resides.
170 --prefix=prefix
172 Sets the ICU prefix to prefix for the remainder of this command
173 line. Does test whether the new prefix is valid.
174 --sbindir
176 Prints the location of ICU system binaries, normally (sbin)
177 --shared-datadir
179 Prints the location of ICU shared data, normally (share)
180 --sysconfdir
182 Prints the location of ICU system configuration data, normally
183 (etc)
184 --unicode-version
186 Prints the Version of the Unicode Standard which the current ICU
187 uses.
188 --version
190 Prints the current version of ICU.
191 --incfile
193 Prints the 'Makefile.inc' path, suitable for use with pkg‐
194 data(1)'s -O option.
195
197 Steven Loomis
198
200 73.2
201
203 Copyright (C) 2002-2004 IBM, Inc. and others.
204ICU MANPAGE 17 May 2004 ICU-CONFIG(1)