FindICU — CMake 4.3.4 Documentation

# FindICU

Added in version 3.7.

Finds the International Components for Unicode (ICU) libraries and programs:

    find_package(ICU [<version>] COMPONENTS <components>... [...])

Added in version 3.11: Support for static libraries on Windows.

## Components

This module supports components, which can be specified with:

    find_package(ICU COMPONENTS <components>...)

The following components are supported:

`data`

  Finds the ICU Data library. On Windows, this library component is named `dt`, otherwise any of these component names may be used, and the appropriate platform-specific library name will be automatically selected.

`i18n`

  Finds the ICU Internationalization library. On Windows, this library component is named `in`, otherwise any of these component names may be used, and the appropriate platform-specific library name will be automatically selected.

`io`

  Finds the ICU Stream and I/O (Unicode stdio) library.

`le`

  Finds the deprecated ICU Layout Engine library, which has been removed as of ICU version 58.

`lx`

  Finds the ICU Layout Extensions Engine library, used for paragraph layout.

`test`

  Finds the ICU test suits.

`tu`

  Finds the ICU Tool Utility library.

`uc`

  Finds the base ICU Common and Data libraries. This library is required by all other ICU libraries and is recommended to include when working with ICU components.

At least one component should be specified for this module to successfully find ICU.

## Imported Targets

This module provides the following Imported Targets:

`ICU::<component>`

> Target encapsulating the usage requirements for the specified ICU component, available only if that component is found. The `<component>` should be written in lowercase, as listed above. For example, use `ICU::i18n` for the Internationalization library.

## Result Variables

This module defines the following variables:

`ICU_FOUND`

  Boolean indicating whether the (requested version of) main ICU programs and libraries were found.

`ICU_VERSION`

  The version of the ICU release found.

`ICU_INCLUDE_DIRS`

  The include directories containing the ICU headers.

`ICU_LIBRARIES`

  Component libraries to be linked.

ICU programs are defined in the following variables:

`ICU_GENCNVAL_EXECUTABLE`

  The path to the `gencnval` executable.

`ICU_ICUINFO_EXECUTABLE`

  The path to the `icuinfo` executable.

`ICU_GENBRK_EXECUTABLE`

  The path to the `genbrk` executable.

`ICU_ICU-CONFIG_EXECUTABLE`

  The path to the `icu-config` executable.

`ICU_GENRB_EXECUTABLE`

  The path to the `genrb` executable.

`ICU_GENDICT_EXECUTABLE`

  The path to the `gendict` executable.

`ICU_DERB_EXECUTABLE`

  The path to the `derb` executable.

`ICU_PKGDATA_EXECUTABLE`

  The path to the `pkgdata` executable.

`ICU_UCONV_EXECUTABLE`

  The path to the `uconv` executable.

`ICU_GENCFU_EXECUTABLE`

  The path to the `gencfu` executable.

`ICU_MAKECONV_EXECUTABLE`

  The path to the `makeconv` executable.

`ICU_GENNORM2_EXECUTABLE`

  The path to the `gennorm2` executable.

`ICU_GENCCODE_EXECUTABLE`

  The path to the `genccode` executable.

`ICU_GENSPREP_EXECUTABLE`

  The path to the `gensprep` executable.

`ICU_ICUPKG_EXECUTABLE`

  The path to the `icupkg` executable.

`ICU_GENCMN_EXECUTABLE`

  The path to the `gencmn` executable.

ICU component libraries are defined in the following variables:

`ICU_<COMPONENT>_FOUND`

  Boolean indicating whether the ICU component was found; The `<COMPONENT>` should be written in uppercase.

`ICU_<COMPONENT>_LIBRARIES`

  Libraries for component; The `<COMPONENT>` should be written in uppercase.

ICU datafiles are defined in the following variables:

`ICU_MAKEFILE_INC`

  The path to the `Makefile.inc` file.

`ICU_PKGDATA_INC`

  The path to the `pkgdata.inc` file.

## Cache Variables

The following cache variables may also be set:

`ICU_<PROGRAM>_EXECUTABLE`

  The path to executable `<PROGRAM>`; The `<PROGRAM>` should be written in uppercase. These variables correspond to the ICU program result variables listed above.

`ICU_INCLUDE_DIR`

  The directory containing the ICU headers.

`ICU_<COMPONENT>_LIBRARY`

  The library for the ICU component. The `<COMPONENT>` should be written in uppercase.

## Hints

This module reads hints about search results from:

`ICU_ROOT`

  The root of the ICU installation. The environment variable `ICU_ROOT` may also be used; the `ICU_ROOT` variable takes precedence.

Note

In most cases, none of the above variables will need to be set, unless multiple versions of ICU are available and a specific version is required.

## Examples

Finding ICU components and linking them to a project target:

    find_package(ICU COMPONENTS i18n io uc)
    target_link_libraries(project_target PRIVATE ICU::i18n ICU::io ICU::uc)