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cmake_minimum_required(VERSION 3.5)
project(cmake-user LANGUAGES C)
message(STATUS "CMAKE_COMMAND: ${CMAKE_COMMAND}")
set(CHECK_CMAKE_VERSION "NOTFOUND" CACHE STRING "Version of CMake expected to be found")
if(NOT CHECK_CMAKE_VERSION)
message(WARNING "CMake version check: skipped (actual: ${CMAKE_VERSION})")
elseif(NOT CHECK_CMAKE_VERSION VERSION_EQUAL CMAKE_VERSION)
message(SEND_ERROR "CMake version check: failed (actual: ${CMAKE_VERSION} expected: ${CHECK_CMAKE_VERSION})")
else()
message(STATUS "CMake version check: success (actual: ${CMAKE_VERSION})")
endif()
# add_library overload
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/lib.c" "int lib_unused() { return 1; }")
add_library(lib "${CMAKE_CURRENT_BINARY_DIR}/lib.c")
# add_executable overload
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/exe.c" "int main() { return 0; }")
add_executable(exe "${CMAKE_CURRENT_BINARY_DIR}/exe.c")
# install overload
set(X_VCPKG_APPLOCAL_DEPS_INSTALL 1)
install(TARGETS exe lib
RUNTIME DESTINATION bin
ARCHIVE DESTINATION lib
LIBRARY DESTINATION lib
)
# find_package overload and wrapper
set(FIND_PACKAGES "" CACHE STRING "List of packages to be found and used")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
foreach(package ${FIND_PACKAGES})
set(extra_args "")
if(package STREQUAL "Curses")
set(CURSES_NEED_WIDE 1)
elseif(package STREQUAL "ICU")
set(extra_args COMPONENTS uc)
endif()
string(TOUPPER "${package}" package_upper)
set(CMAKE_FIND_DEBUG_MODE ON)
find_package("${package}" ${extra_args} QUIET)
set(CMAKE_FIND_DEBUG_MODE OFF)
if(NOT ${package}_FOUND AND NOT ${package_upper}_FOUND)
message(SEND_ERROR "find_package(${package} ${extra_args}) check: failed")
continue()
endif()
# REQUIRED changes the behaviour find_package_handle_standard_args.
find_package("${package}" ${extra_args} REQUIRED)
message(STATUS "find_package(${package} ${extra_args}) check: success")
set(libraries_var "")
if(DEFINED ${package}_LIBRARIES)
set(libraries_var "${package}_LIBRARIES")
elseif(DEFINED ${package_upper}_LIBRARIES)
set(libraries_var "${package_upper}_LIBRARIES")
elseif(DEFINED ${package}_LIBRARY)
set(libraries_var "${package}_LIBRARY")
elseif(DEFINED ${package_upper}_LIBRARY)
set(libraries_var "${package_upper}_LIBRARY")
else()
message(STATUS "${package}_LIBRARY/IES: undefined")
continue()
endif()
set(libraries "${${libraries_var}}")
message(STATUS "${libraries_var}: ${libraries}")
if(package STREQUAL "Intl" AND NOT Intl_LIBRARY)
continue() # using libintl.h from C runtime library
endif()
target_link_libraries(exe PRIVATE ${libraries})
set(last_keyword "")
foreach(item IN LISTS libraries)
if(item STREQUAL "optimized" OR item STREQUAL "debug")
set(last_keyword "${item}")
continue()
endif()
string(FIND "${item}" "${VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/lib/" starts_with_release)
string(FIND "${item}" "${VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/debug/lib/" starts_with_debug)
if(starts_with_release EQUAL "0")
if(last_keyword STREQUAL "optimized")
# okay
elseif(last_keyword STREQUAL "debug")
message(SEND_ERROR "Release lib for 'debug' keyword: ${item}")
elseif(CMAKE_BUILD_TYPE STREQUAL "Debug")
message(SEND_ERROR "Release lib for 'Debug' build: ${item}")
endif()
elseif(starts_with_debug EQUAL "0")
if(last_keyword STREQUAL "debug")
# okay
elseif(last_keyword STREQUAL "optimized")
message(SEND_ERROR "Debug lib for 'optimized' keyword: ${item}")
elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
message(SEND_ERROR "Debug lib for 'Release' build: ${item}")
endif()
endif()
set(last_keyword "")
continue()
endforeach()
set(target "${package}::${package}")
string(REPLACE "SQLite3::" "SQLite::" target "${target}")
if(TARGET "${target}")
get_target_property(type "${target}" TYPE)
message(STATUS "${target}: ${type}")
if(type MATCHES "LIBRARY" AND NOT type MATCHES "INTERFACE")
get_target_property(configurations "${target}" IMPORTED_CONFIGURATIONS)
message(STATUS "IMPORTED_CONFIGURATIONS: ${configurations}")
if(configurations)
string(TOLOWER "${configurations}" configurations)
if("release" IN_LIST configurations)
set(property IMPORTED_IMPLIB_RELEASE)
get_target_property(location "${target}" "${property}")
if(NOT location)
set(property IMPORTED_LOCATION_RELEASE)
get_target_property(location "${target}" "${property}")
endif()
message(STATUS "${property}: ${location}")
string(FIND "${location}" "${VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/lib" index)
if (NOT index EQUAL "0")
message(SEND_ERROR "Release lib is in wrong location.")
endif()
elseif(NOT CHECK_BUILD_TYPE OR CHECK_BUILD_TYPE STREQUAL "release")
message(SEND_ERROR "Release configuration is missing.")
endif()
if("debug" IN_LIST configurations)
set(property IMPORTED_IMPLIB_DEBUG)
get_target_property(location "${target}" "${property}")
if(NOT location)
set(property IMPORTED_LOCATION_DEBUG)
get_target_property(location "${target}" "${property}")
endif()
message(STATUS "${property}: ${location}")
string(FIND "${location}" "${VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/debug/lib" index)
if (NOT index EQUAL "0")
message(SEND_ERROR "Debug lib is in wrong location.")
endif()
elseif(NOT CHECK_BUILD_TYPE OR CHECK_BUILD_TYPE STREQUAL "debug")
message(SEND_ERROR "Debug configuration is missing.")
endif()
endif()
endif()
else()
get_directory_property(imported_targets IMPORTED_TARGETS)
if(imported_targets)
message(STATUS "Imported targets: ${imported_targets}")
endif()
endif()
endforeach()
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