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gnss-sdr/cmake/Modules/FindGFLAGS.cmake

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# Copyright (C) 2011-2019 (see AUTHORS file for a list of contributors)
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#
# This file is part of GNSS-SDR.
#
# GNSS-SDR is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GNSS-SDR is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
# - Try to find GFlags
#
# The following CMake and environment variables are optionally searched
# for defaults:
# GFLAGS_ROOT: Base directory where all GFlags components are found
#
# The following are set after configuration is done:
# GFlags_FOUND
# GFlags_INCLUDE_DIRS
# GFlags_LIBS
# GFlags_LIBRARY_DIRS
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#
# Provides the following imported target:
# Gflags::gflags
#
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if(NOT COMMAND feature_summary)
include(FeatureSummary)
endif()
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if(APPLE)
find_path(GFlags_ROOT_DIR
libgflags.dylib
PATHS
/opt/local/lib
/usr/local/lib
${GFLAGS_ROOT}/lib
$ENV{GFLAGS_ROOT}/lib
)
else()
find_path(GFlags_ROOT_DIR
libgflags.so
HINTS
/usr/local/lib
/usr/lib/x86_64-linux-gnu
/usr/lib/i386-linux-gnu
/usr/lib/arm-linux-gnueabihf
/usr/lib/arm-linux-gnueabi
/usr/lib/aarch64-linux-gnu
/usr/lib/mipsel-linux-gnu
/usr/lib/mips-linux-gnu
/usr/lib/mips64el-linux-gnuabi64
/usr/lib/powerpc-linux-gnu
/usr/lib/powerpc64-linux-gnu
/usr/lib/powerpc64le-linux-gnu
/usr/lib/powerpc-linux-gnuspe
/usr/lib/hppa-linux-gnu
/usr/lib/s390x-linux-gnu
/usr/lib/i386-gnu
/usr/lib/hppa-linux-gnu
/usr/lib/x86_64-kfreebsd-gnu
/usr/lib/i386-kfreebsd-gnu
/usr/lib/m68k-linux-gnu
/usr/lib/sh4-linux-gnu
/usr/lib/sparc64-linux-gnu
/usr/lib/x86_64-linux-gnux32
/usr/lib/alpha-linux-gnu
/usr/lib64
/usr/lib
${GFLAGS_ROOT}/lib
$ENV{GFLAGS_ROOT}/lib
${GFLAGS_ROOT}/lib64
$ENV{GFLAGS_ROOT}/lib64
)
endif()
if(GFlags_ROOT_DIR)
# We are testing only a couple of files in the include directories
find_path(GFlags_INCLUDE_DIRS
gflags/gflags.h
HINTS
/opt/local/include
/usr/local/include
/usr/include
${GFlags_ROOT_DIR}/src
${GFLAGS_ROOT}/include
$ENV{GFLAGS_ROOT}/include
)
# Find the libraries
set(GFlags_LIBRARY_DIRS ${GFlags_ROOT_DIR})
find_library(GFlags_lib gflags ${GFlags_LIBRARY_DIRS})
if(EXISTS ${GFlags_INCLUDE_DIRS}/gflags/gflags_gflags.h)
set(GFLAGS_GREATER_20 TRUE)
else()
set(GFLAGS_GREATER_20 FALSE)
endif()
message(STATUS "gflags library found at ${GFlags_lib}")
set(GFlags_LIBS ${GFlags_lib})
set(GFlags_FOUND true)
mark_as_advanced(GFlags_INCLUDE_DIRS)
else()
message(STATUS "Cannot find gflags")
set(GFlags_FOUND false)
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(GFLAGS DEFAULT_MSG GFlags_LIBS GFlags_INCLUDE_DIRS)
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if(GFLAGS_FOUND)
list(GET GFlags_LIBS 0 FIRST_DIR)
get_filename_component(GFlags_LIBS_DIR ${FIRST_DIR} DIRECTORY)
if(EXISTS ${GFlags_LIBS_DIR}/cmake/gflags/gflags-config-version.cmake)
include(${GFlags_LIBS_DIR}/cmake/gflags/gflags-config-version.cmake)
endif()
if(PACKAGE_VERSION)
set(GFLAGS_VERSION ${PACKAGE_VERSION})
set_package_properties(GFLAGS PROPERTIES
DESCRIPTION "C++ library that implements commandline flags processing (found: v${GFLAGS_VERSION})"
)
else()
set_package_properties(GFLAGS PROPERTIES
DESCRIPTION "C++ library that implements commandline flags processing"
)
endif()
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unset(PACKAGE_VERSION)
else()
set_package_properties(GFLAGS PROPERTIES
DESCRIPTION "C++ library that implements commandline flags processing"
)
endif()
set_package_properties(GFLAGS PROPERTIES
URL "https://github.com/gflags/gflags"
)
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if(GFLAGS_FOUND AND NOT TARGET Gflags::gflags)
add_library(Gflags::gflags SHARED IMPORTED)
set_target_properties(Gflags::gflags PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${GFlags_LIBS}"
INTERFACE_INCLUDE_DIRECTORIES "${GFlags_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${GFlags_LIBS}"
)
endif()