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CMakeLists.txt
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CMakeLists.txt
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#
# Copyright (c) 2023-24 Armin Sobhani
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
cmake_minimum_required(VERSION 3.14...3.26)
## detect if g3p is being bundled, disable unit tests in that case
#
if(NOT DEFINED PROJECT_NAME)
set(NOT_SUBPROJECT ON)
else()
set(NOT_SUBPROJECT OFF)
endif()
## life is about choices...
#
option(G3P_ENABLE_TESTS "Enable the unit tests ?" ON)
## finally our project...
#
project(
g3p
VERSION 1.1.1
LANGUAGES CXX
DESCRIPTION "gnuplot for Modern C++ with support for Jupyter"
)
## prevent in-source builds
#
if (CMAKE_BINARY_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
message(FATAL_ERROR "Building in-source is not supported! Create a build dir and remove ${CMAKE_SOURCE_DIR}/CMakeCache.txt")
endif()
## find the thread library
#
find_package(Threads REQUIRED)
## find gnuplot
#
find_package(Gnuplot)
if (NOT GNUPLOT_FOUND)
message(WARNING "g3p requires gnuplot executable to be in the PATH environment variable")
endif()
## necessary modules
#
include(GNUInstallDirs)
include(FetchContent)
## defining g3p target
#
add_library(${PROJECT_NAME} INTERFACE)
add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
target_compile_features(${PROJECT_NAME} INTERFACE cxx_std_17)
target_include_directories(${PROJECT_NAME} INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
)
target_link_libraries(${PROJECT_NAME} INTERFACE
Threads::Threads
)
set_target_properties(${PROJECT_NAME} PROPERTIES
VERSION ${g3p_VERSION}
SOVERSION ${g3p_VERSION_MAJOR}
)
## specifying the export name for the targets
#
install(
TARGETS ${PROJECT_NAME}
EXPORT ${PROJECT_NAME}-targets
)
## installing g3p header files
#
add_subdirectory(include)
## installing g3p export target file
#
install(
EXPORT ${PROJECT_NAME}-targets
FILE ${PROJECT_NAME}-targets.cmake
NAMESPACE ${PROJECT_NAME}::
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
)
## generate the config file that includes the exports
#
include(CMakePackageConfigHelpers)
configure_package_config_file(
${CMAKE_CURRENT_SOURCE_DIR}/cmake/${PROJECT_NAME}-config.cmake.in
"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake"
INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
)
## creating version file
#
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake"
VERSION "${g3p_VERSION_MAJOR}.${g3p_VERSION_MINOR}"
COMPATIBILITY AnyNewerVersion
)
## installing g3p export config files
#
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
)
## make export target available from the build tree
#
export(EXPORT ${PROJECT_NAME}-targets
FILE "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-targets.cmake"
NAMESPACE ${PROJECT_NAME}::
)
## include unit test and artwork only when g3p is not being used as a subproject
#
if (NOT_SUBPROJECT)
## add unit tests
#
if(${G3P_ENABLE_TESTS})
enable_testing()
find_package(
Catch2 3
HINTS $ENV{HOME} /usr/local /opt/local /opt
)
if(NOT Catch2_FOUND)
message(STATUS "Fetching Catch2 library...")
FetchContent_Declare(
catch2
GIT_REPOSITORY https://github.com/catchorg/Catch2.git
GIT_TAG v3.5.2
)
FetchContent_MakeAvailable(Catch2)
list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras)
endif()
include(Catch)
add_subdirectory(test)
endif()
## adding artwork
#
add_subdirectory(artwork)
endif(NOT_SUBPROJECT)