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       icu-config - output ICU build options


       icu-config  [  --bindir  ]  [  --cc  ]  [  --cflags  ] [ --cppflags ] [
       --cppflags-searchpath ] [ --cxx ] [ --cxxflags ] [ --detect-prefix ]  [
       --exec-prefix  ]  [  --exists ] [ --help, -?, --usage ] [ --icudata ] [
       --icudata-install-dir ] [ --icudata-mode ] [ --icudatadir ] [  --invoke
       ]   [   --invoke=prog   ]   [   --ldflags  ]  [  --ldflags-layout  ]  [
       --ldflags-libsonly ] [ --ldflags-searchpath ] [  --ldflags-system  ]  [
       --ldflags-icuio  ]  [  --mandir  ]  [  --prefix ] [ --prefix=prefix ] [
       --sbindir ] [ --shared-datadir ] [ --sysconfdir ] [ --unicode-version ]
       [ --version ] [ --incfile ]


       icu-config  simplifies  the task of building and linking against ICU as
       compared to manually configuring user makefiles or equivalent.  Because
       icu-config  is  an  executable  script,  it  also solves the problem of
       locating the ICU libraries and headers, by allowing the system PATH  to
       locate it.


       icu-config  can  be  used without a makefile. The command line below is
       sufficient for building a single-file c++  program  against  ICU.  (For
       example, icu/source/samples/props/props.cpp)

              ‘icu-config  --cxx  --cxxflags  --cppflags  --ldflags‘  -o props

       More commonly, icu-config will be called from within  a  makefile,  and
       used  to  set up variables. The following example also builds the props

              CC=$(shell icu-config --cc)

              CXX=$(shell icu-config --cxx)

              CPPFLAGS=$(shell icu-config --cppflags)

              CXXFLAGS=$(shell icu-config --cxxflags)

              LDFLAGS =$(shell icu-config --ldflags)

              all: props

              props.o: props.cpp

       make(1) will automatically use the above variables.


              Prints  the  binary  (executable)   directory   path.   Normally
              equivalent  to  ’bin’.   ICU  user-executable  applications  and
              scripts are found here.

       --cc   Print the C compiler used.  Equivalent  to  the  $(CC)  Makefile

              Print the C compiler flags. Equivalent to the $(CFLAGS) Makefile
              variable.  Does NOT  include  preprocessor  directives  such  as
              include path or defined symbols. Examples include debugging (-g)
              and optimization flags

              Print the C preprocessor flags. Equivalent  to  the  $(CPPFLAGS)
              Makefile  variable. Examples are -I include paths  and -D define

              Print the C preprocessor flags, as  above  but  only  -I  search

       --cxx  Print  the  C++  compiler.  Equivalent  to  the  $(CXX) Makefile

              Print the C++ compiler  flags.  Equivalent  to  the  $(CXXFLAGS)
              Makefile variable.

              If  ICU  has  been moved from its installed location, prepending
              this flag to other icu-config calls will attempt to  locate  ICU
              relative to where the icu-config script has been located. Can be
              used as a  last-chance  effort  if  the  ICU  install  has  been

              Print  the  prefix used for executable program directories (such
              as bin, sbin, etc). Normally the same as the prefix.

              Script will return with a successful (0) status if ICU seems  to
              be  installed  and located correctly, otherwise an error message
              and nonzero status will be displayed.

       --help, -?,--usage
              Print a help and usage message.

              Print the shortname of the ICU data file. This does not  include
              any  suffix  such  as .dat, .dll, .so, .lib, .a, etc nor does it
              include prefixes such as ’lib’.  It may be in the form icudt21b

              Print the directory where ICU packaged data should be installed.
              Can use as pkgdata(1)’s --install option.

              Print  the default ICU pkgdata mode, such as dll or common.  Can
              use as pkgdata(1)’s --mode option.

              Print the path to  packaged  archive  data.   (should  be  where
              $ICU_DATA or equivalent default path points.)  Will NOT point to
              the libdir.

              If ICU is not installed in a location where the operating system
              will  locate  its  shared  libraries, this option will print out
              commands so as to set the appropriate environment  variables  to
              load  ICU’s  shared  libraries.  For  example, on many systems a
              variable named LD_LIBRARY_PATH or equivalent must be set.

              Same  as  the  --invoke  option,  except  includes  options  for
              invoking  a  program  named prog.  If prog is the name of an ICU
              tool, such as genrb(1), then icu-config will  also  include  the
              full path to that tool.

              Print  any flags which should be passed to the linker. These may
              include -L for library search paths, and -l  for  including  ICU
              libraries.  By  default, this option will attempt to link in the
              "common" (libicuuc) and "i18n" (libicui18n) libraries,  as  well
              as  the  data library. If additional libraries are required, any
              of the following two flags may be added in conjunction with this
              one,  for  example  "--ldflags  --ldflags-icuio"  if  the  icuio
              library is required in addition to the standard  ICU  libraries.
              Equivalent to the $(LDFLAGS) Makefile variable.

              Prints the link option for the ICU layout library.

              Prints the link option to add the ICU I/O package

              Similar to --ldflags but only includes the -l options.

              Similar  to  --ldflags  but  only  includes  the  -L search path

              Similar to --ldflags but only includes system libraries (such as
              pthreads)  --mandir Prints the location of the installed ICU man
              pages. Normally (man)

              Prints the prefix (base directory) under which the installed ICU

              Sets  the ICU prefix to prefix for the remainder of this command
              line.  Does test whether the new prefix is valid.

              Prints the location of ICU system binaries, normally (sbin)

              Prints the location of ICU shared data, normally (share)

              Prints the location of ICU system configuration  data,  normally

              Prints the Version of the Unicode Standard which the current ICU

              Prints the current version of ICU.

              Prints  the  ’’  path,   suitable   for   use   with
              pkgdata(1)’s -O option.


       Steven Loomis




       Copyright (C) 2002-2004 IBM, Inc. and others.