| # Distributed under the OSI-approved BSD 3-Clause License. See accompanying |
| # file LICENSE. |
| |
| #[=======================================================================[.rst: |
| FindNettle |
| ------- |
| |
| Finds the Nettle library. |
| |
| Imported Targets |
| ^^^^^^^^^^^^^^^^ |
| |
| This module provides the following imported targets, if found: |
| |
| ``Nettle::Nettle`` |
| The Nettle library |
| |
| Result Variables |
| ^^^^^^^^^^^^^^^^ |
| |
| This will define the following variables: |
| |
| ``Nettle_FOUND`` |
| True if the system has the Nettle library. |
| ``Nettle_VERSION`` |
| The version of the Nettle library which was found. |
| ``Nettle_INCLUDE_DIRS`` |
| Include directories needed to use Nettle. |
| ``Nettle_LIBRARIES`` |
| Libraries needed to link to Nettle. |
| |
| Cache Variables |
| ^^^^^^^^^^^^^^^ |
| |
| The following cache variables may also be set: |
| |
| ``Nettle_INCLUDE_DIR`` |
| The directory containing ``foo.h``. |
| ``Nettle_LIBRARY`` |
| The path to the Nettle library. |
| |
| #]=======================================================================] |
| |
| find_package(PkgConfig) |
| pkg_check_modules(PC_Nettle QUIET nettle) |
| |
| find_path(Nettle_INCLUDE_DIR |
| NAMES nettle/aes.h nettle/md5.h nettle/pbkdf2.h nettle/ripemd160.h nettle/sha.h |
| PATHS ${PC_Nettle_INCLUDE_DIRS} |
| PATH_SUFFIXES Nettle |
| ) |
| find_library(Nettle_LIBRARY |
| NAMES nettle |
| PATHS ${PC_Nettle_LIBRARY_DIRS} |
| ) |
| |
| # Extract version information from the header file |
| if(Nettle_INCLUDE_DIR) |
| file(STRINGS ${Nettle_INCLUDE_DIR}/nettle/version.h _ver_major_line |
| REGEX "^#define NETTLE_VERSION_MAJOR *[0-9]+" |
| LIMIT_COUNT 1) |
| string(REGEX MATCH "[0-9]+" |
| Nettle_MAJOR_VERSION "${_ver_major_line}") |
| file(STRINGS ${Nettle_INCLUDE_DIR}/nettle/version.h _ver_minor_line |
| REGEX "^#define NETTLE_VERSION_MINOR *[0-9]+" |
| LIMIT_COUNT 1) |
| string(REGEX MATCH "[0-9]+" |
| Nettle_MINOR_VERSION "${_ver_minor_line}") |
| set(Nettle_VERSION "${Nettle_MAJOR_VERSION}.${Nettle_MINOR_VERSION}") |
| unset(_ver_major_line) |
| unset(_ver_minor_line) |
| endif() |
| |
| include(FindPackageHandleStandardArgs) |
| find_package_handle_standard_args(Nettle |
| FOUND_VAR Nettle_FOUND |
| REQUIRED_VARS |
| Nettle_LIBRARY |
| Nettle_INCLUDE_DIR |
| VERSION_VAR Nettle_VERSION |
| ) |
| |
| if(Nettle_FOUND) |
| set(Nettle_LIBRARIES ${Nettle_LIBRARY}) |
| set(Nettle_INCLUDE_DIRS ${Nettle_INCLUDE_DIR}) |
| set(Nettle_DEFINITIONS ${PC_Nettle_CFLAGS_OTHER}) |
| endif() |
| |
| if(Nettle_FOUND AND NOT TARGET Nettle::Nettle) |
| add_library(Nettle::Nettle UNKNOWN IMPORTED) |
| set_target_properties(Nettle::Nettle PROPERTIES |
| IMPORTED_LOCATION "${Nettle_LIBRARY}" |
| INTERFACE_COMPILE_OPTIONS "${PC_Nettle_CFLAGS_OTHER}" |
| INTERFACE_INCLUDE_DIRECTORIES "${Nettle_INCLUDE_DIR}" |
| ) |
| endif() |
| |
| mark_as_advanced( |
| Nettle_INCLUDE_DIR |
| Nettle_LIBRARY |
| ) |
| |
| # compatibility variables |
| set(Nettle_VERSION_STRING ${Nettle_VERSION}) |