mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2025-10-30 23:03:05 +00:00
152 lines
4.3 KiB
CMake
152 lines
4.3 KiB
CMake
# GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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# This file is part of GNSS-SDR.
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#
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# SPDX-FileCopyrightText: 2011-2020 C. Fernandez-Prades cfernandez(at)cttc.es
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# SPDX-License-Identifier: BSD-3-Clause
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# - Try to find GFlags
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#
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# The following CMake and environment variables are optionally searched
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# for defaults:
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# GFLAGS_ROOT: Base directory where all GFlags components are found
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#
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# The following are set after configuration is done:
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# GFlags_FOUND
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# GFlags_INCLUDE_DIRS
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# GFlags_LIBS
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# GFlags_LIBRARY_DIRS
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#
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# Provides the following imported target:
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# Gflags::gflags
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#
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if(NOT COMMAND feature_summary)
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include(FeatureSummary)
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endif()
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if(NOT GNSSSDR_LIB_PATHS)
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include(GnsssdrLibPaths)
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endif()
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if(NOT GFLAGS_ROOT)
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set(GFLAGS_ROOT_USER_PROVIDED /usr/local)
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else()
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set(GFLAGS_ROOT_USER_PROVIDED ${GFLAGS_ROOT})
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endif()
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if(DEFINED ENV{GFLAGS_ROOT})
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set(GFLAGS_ROOT_USER_PROVIDED
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${GFLAGS_ROOT_USER_PROVIDED}
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$ENV{GFLAGS_ROOT}
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)
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endif()
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if(APPLE)
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find_path(GFlags_ROOT_DIR
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libgflags.dylib
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PATHS
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${GFLAGS_ROOT_USER_PROVIDED}/lib
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/usr/local/lib
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/opt/local/lib
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/opt/homebrew/opt/gflags/lib
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)
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else()
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find_path(GFlags_ROOT_DIR
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libgflags.so
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PATHS
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${GFLAGS_ROOT_USER_PROVIDED}/lib
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${GFLAGS_ROOT_USER_PROVIDED}/lib64
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${GNSSSDR_LIB_PATHS}
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)
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endif()
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if(GFlags_ROOT_DIR)
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unset(GFlags_INCLUDE_DIRS CACHE)
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# We are testing only a couple of files in the include directories
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find_path(GFlags_INCLUDE_DIRS
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gflags/gflags.h
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PATHS
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${GFlags_ROOT_DIR}/src
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${GFLAGS_ROOT_USER_PROVIDED}/include
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/usr/include
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/usr/local/include
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/opt/local/include
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/opt/homebrew/opt/gflags/include
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)
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# Find the libraries
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set(GFlags_LIBRARY_DIRS ${GFlags_ROOT_DIR})
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find_library(GFlags_lib gflags ${GFlags_LIBRARY_DIRS})
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if(EXISTS ${GFlags_INCLUDE_DIRS}/gflags/gflags_gflags.h)
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set(GFLAGS_GREATER_20 TRUE)
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else()
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set(GFLAGS_GREATER_20 FALSE)
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endif()
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message(STATUS "gflags library found at ${GFlags_lib}")
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set(GFlags_LIBS ${GFlags_lib})
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set(GFlags_FOUND true)
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mark_as_advanced(GFlags_INCLUDE_DIRS)
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else()
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message(STATUS "Cannot find gflags")
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set(GFlags_FOUND false)
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endif()
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if(GFlags_LIBS AND GFlags_INCLUDE_DIRS)
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if(NOT PACKAGE_VERSION)
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set(PACKAGE_VERSION "")
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endif()
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set(OLD_PACKAGE_VERSION ${PACKAGE_VERSION})
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unset(PACKAGE_VERSION)
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list(GET GFlags_LIBS 0 FIRST_DIR)
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get_filename_component(GFlags_LIBS_DIR ${FIRST_DIR} DIRECTORY)
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if(EXISTS ${GFlags_LIBS_DIR}/cmake/gflags/gflags-config-version.cmake)
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include(${GFlags_LIBS_DIR}/cmake/gflags/gflags-config-version.cmake)
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endif()
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if(NOT PACKAGE_VERSION)
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if(EXISTS ${GFlags_INCLUDE_DIRS}/google/gflags.h)
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set(PACKAGE_VERSION "2.0")
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endif()
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endif()
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if(PACKAGE_VERSION)
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set(GFLAGS_VERSION ${PACKAGE_VERSION})
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set_package_properties(GFLAGS PROPERTIES
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DESCRIPTION "C++ library that implements commandline flags processing (found: v${GFLAGS_VERSION})"
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)
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else()
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set_package_properties(GFLAGS PROPERTIES
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DESCRIPTION "C++ library that implements commandline flags processing"
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)
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endif()
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set(PACKAGE_VERSION ${OLD_PACKAGE_VERSION})
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else()
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set_package_properties(GFLAGS PROPERTIES
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DESCRIPTION "C++ library that implements commandline flags processing"
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)
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endif()
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set_package_properties(GFLAGS PROPERTIES
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URL "https://github.com/gflags/gflags"
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)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(GFLAGS DEFAULT_MSG GFlags_LIBS GFlags_INCLUDE_DIRS)
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if(GFLAGS_VERSION)
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if(${GFLAGS_VERSION} VERSION_LESS "${GNSSSDR_GFLAGS_MIN_VERSION}")
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set(GFLAGS_FOUND FALSE)
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unset(GFlags_LIBS CACHE)
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unset(GFlags_INCLUDE_DIRS CACHE)
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endif()
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endif()
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if(GFLAGS_FOUND AND NOT TARGET Gflags::gflags)
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add_library(Gflags::gflags SHARED IMPORTED)
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set_target_properties(Gflags::gflags PROPERTIES
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IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
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IMPORTED_LOCATION "${GFlags_LIBS}"
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INTERFACE_INCLUDE_DIRECTORIES "${GFlags_INCLUDE_DIRS}"
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INTERFACE_LINK_LIBRARIES "${GFlags_LIBS}"
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)
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endif()
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