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Add example integration with test-drive (#3)
- use CMake modules for making subprojects available - automatically make test-drive available
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+1155
-34
lines changed

10 files changed

+1155
-34
lines changed

‎CMakeLists.txt‎

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Original file line numberDiff line numberDiff line change
@@ -13,14 +13,13 @@ include(GNUInstallDirs)
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# General configuration information
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add_subdirectory("config")
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# Get the stdlib subproject
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set(lib-deps)
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add_subdirectory("subprojects")
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if(NOT TARGET "fortran_stdlib::fortran_stdlib")
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find_package("fortran_stdlib" REQUIRED)
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endif()
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# Collect source of the project
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add_subdirectory("src")
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# Collect source of the application
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add_subdirectory("app")
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@@ -50,3 +49,7 @@ install(
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"LICENSE"
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DESTINATION "${CMAKE_INSTALL_DATADIR}/licenses/${PROJECT_NAME}"
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)
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# Include test suite
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enable_testing()
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add_subdirectory("test")

‎README.md‎

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Original file line numberDiff line numberDiff line change
@@ -32,6 +32,9 @@ else()
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endif()
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```
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A more elaborated CMake module for making stdlib available can be found [here](config/cmake/Findfortran_stdlib.cmake).
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This module makes sure the ``fortran_stdlib::fortran_stdlib`` target is always generated regardless of how the stdlib is included in the project.
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You can configure stdlib by setting the appropriate options before including the subproject.
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Important options are
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‎config/CMakeLists.txt‎

Lines changed: 8 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -15,16 +15,21 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
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)
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endif()
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# Include local CMake modules
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set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR} PARENT_SCOPE)
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if(WIN32)
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list(
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APPEND CMAKE_EXE_LINKER_FLAGS
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"-Wl,--allow-multiple-definition"
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)
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endif()
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH}" PARENT_SCOPE)
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install(
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DIRECTORY
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/"
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DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
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)
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2833
include(CMakePackageConfigHelpers)
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configure_package_config_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/template.cmake"

‎config/cmake/Findfortran_stdlib.cmake‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,178 @@
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# SPDX-Identifier: MIT
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#[[.rst:
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Find fortran_stdlib
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-------------------
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Makes the Fortran standard library (stdlib) project available.
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Imported Targets
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^^^^^^^^^^^^^^^^
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This module provides the following imported target, if found:
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``fortran_stdlib::fortran_stdlib``
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The Fortran standard library
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Result Variables
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^^^^^^^^^^^^^^^^
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This module will define the following variables:
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``FORTRAN_STDLIB_FOUND``
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True if the Fortran standard library is available
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``FORTRAN_STDLIB_SOURCE_DIR``
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Path to the source directory of the Fortran standard library project,
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only set if the project is included as source.
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``FORTRAN_STDLIB_BINARY_DIR``
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Path to the binary directory of the Fortran standard library project,
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only set if the project is included as source.
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Cache variables
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^^^^^^^^^^^^^^^
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The following cache variables may be set to influence the library detection:
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``FORTRAN_STDLIB_FIND_METHOD``
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Methods to find or make the project available. Available methods are
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- ``cmake``: Try to find via CMake config file
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- ``pkgconf``: Try to find via pkg-config file
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- ``subproject``: Use source in subprojects directory
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- ``fetch``: Fetch the source from upstream
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``FORTRAN_STDLIB_DIR``
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Used for searching the CMake config file
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``FORTRAN_STDLIB_SUBPROJECT``
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Directory to find the Fortran standard library subproject, relative to the project root
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#]]
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set(_lib "fortran_stdlib")
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set(_pkg "FORTRAN_STDLIB")
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set(_url "https://github.com/fortran-lang/stdlib")
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if(NOT DEFINED "${_pkg}_FIND_METHOD")
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if(DEFINED "${PROJECT_NAME}-dependency-method")
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set("${_pkg}_FIND_METHOD" "${${PROJECT_NAME}-dependency-method}")
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else()
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set("${_pkg}_FIND_METHOD" "cmake" "pkgconf" "subproject" "fetch")
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endif()
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set("_${_pkg}_FIND_METHOD")
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endif()
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foreach(method ${${_pkg}_FIND_METHOD})
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if(TARGET "${_lib}::${_lib}")
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break()
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endif()
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if("${method}" STREQUAL "cmake")
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message(STATUS "${_lib}: Find installed package")
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if(DEFINED "${_pkg}_DIR")
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set("_${_pkg}_DIR")
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set("${_lib}_DIR" "${_pkg}_DIR")
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endif()
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find_package("${_lib}" CONFIG)
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if("${_lib}_FOUND")
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message(STATUS "${_lib}: Found installed package")
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break()
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endif()
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endif()
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if("${method}" STREQUAL "pkgconf")
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find_package(PkgConfig QUIET)
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pkg_check_modules("${_pkg}" QUIET "${_lib}")
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if("${_pkg}_FOUND")
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message(STATUS "Found ${_lib} via pkg-config")
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add_library("${_lib}::${_lib}" INTERFACE IMPORTED)
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target_link_libraries(
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"${_lib}::${_lib}"
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INTERFACE
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"${${_pkg}_LINK_LIBRARIES}"
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)
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target_include_directories(
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"${_lib}::${_lib}"
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INTERFACE
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"${${_pkg}_INCLUDE_DIRS}"
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)
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break()
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endif()
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endif()
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if("${method}" STREQUAL "subproject")
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if(NOT DEFINED "${_pkg}_SUBPROJECT")
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set("_${_pkg}_SUBPROJECT")
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set("${_pkg}_SUBPROJECT" "subprojects/${_lib}")
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endif()
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set("${_pkg}_SOURCE_DIR" "${PROJECT_SOURCE_DIR}/${${_pkg}_SUBPROJECT}")
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set("${_pkg}_BINARY_DIR" "${PROJECT_BINARY_DIR}/${${_pkg}_SUBPROJECT}")
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if(EXISTS "${${_pkg}_SOURCE_DIR}/CMakeLists.txt")
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message(STATUS "Include ${_lib} from ${${_pkg}_SUBPROJECT}")
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add_subdirectory(
117+
"${${_pkg}_SOURCE_DIR}"
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"${${_pkg}_BINARY_DIR}"
119+
)
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add_library("${_lib}::${_lib}" INTERFACE IMPORTED)
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target_link_libraries("${_lib}::${_lib}" INTERFACE "${_lib}")
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# We need the module directory in the subproject before we finish the configure stage
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if(NOT EXISTS "${${_pkg}_BINARY_DIR}/mod_files")
126+
make_directory("${${_pkg}_BINARY_DIR}/mod_files")
127+
endif()
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129+
break()
130+
endif()
131+
endif()
132+
133+
if("${method}" STREQUAL "fetch")
134+
message(STATUS "Retrieving ${_lib} from ${_url}")
135+
include(FetchContent)
136+
FetchContent_Declare(
137+
"${_lib}"
138+
GIT_REPOSITORY "${_url}"
139+
GIT_TAG "HEAD"
140+
)
141+
FetchContent_MakeAvailable("${_lib}")
142+
143+
add_library("${_lib}::${_lib}" INTERFACE IMPORTED)
144+
target_link_libraries("${_lib}::${_lib}" INTERFACE "${_lib}")
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146+
# We need the module directory in the subproject before we finish the configure stage
147+
FetchContent_GetProperties("${_lib}" SOURCE_DIR "${_pkg}_SOURCE_DIR")
148+
FetchContent_GetProperties("${_lib}" BINARY_DIR "${_pkg}_BINARY_DIR")
149+
if(NOT EXISTS "${${_pkg}_BINARY_DIR}/mod_files")
150+
make_directory("${${_pkg}_BINARY_DIR}/mod_files")
151+
endif()
152+
153+
break()
154+
endif()
155+
156+
endforeach()
157+
158+
if(TARGET "${_lib}::${_lib}")
159+
set("${_pkg}_FOUND" TRUE)
160+
else()
161+
set("${_pkg}_FOUND" FALSE)
162+
endif()
163+
164+
if(DEFINED "_${_pkg}_SUBPROJECT")
165+
unset("${_pkg}_SUBPROJECT")
166+
unset("_${_pkg}_SUBPROJECT")
167+
endif()
168+
if(DEFINED "_${_pkg}_DIR")
169+
unset("${_lib}_DIR")
170+
unset("_${_pkg}_DIR")
171+
endif()
172+
if(DEFINED "_${_pkg}_FIND_METHOD")
173+
unset("${_pkg}_FIND_METHOD")
174+
unset("_${_pkg}_FIND_METHOD")
175+
endif()
176+
unset(_lib)
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unset(_pkg)
178+
unset(_url)

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