add CMake build system

CMakeLists.txt

@@ -0,0 +1,61 @@
+cmake_minimum_required(VERSION 3.1.3 FATAL_ERROR)
+
+if(NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+    add_subdirectory(src)
+    # compatinility with find_package() vs add_subdirectory
+    set(hidapi_VERSION "${hidapi_VERSION}" PARENT_SCOPE)
+    return()
+endif()
+# All of the below in this file is meant for a standalone build.
+# When building as a subdirectory of a larger project, most of the options may not make sense for it,
+# so it is up to developer to configure those, e.g.:
+#
+# # a subfolder of a master project, e.g.: 3rdparty/hidapi/CMakeLists.txt
+#
+# set(HIDAPI_WITH_HIDRAW OFF)
+# set(CMAKE_FRAMEWORK ON)
+# # and keep everything else to their defaults
+# add_subdirectory(hidapi)
+#
+
+set(DEFAULT_CMAKE_BUILD_TYPES "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
+if(NOT DEFINED CMAKE_BUILD_TYPE OR NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE "Release" CACHE STRING "${DEFAULT_CMAKE_BUILD_TYPES}" FORCE)
+endif()
+# This part is for convenience, when used one of the standard build types with cmake-gui
+list(FIND DEFAULT_CMAKE_BUILD_TYPES "${CMAKE_BUILD_TYPE}" _build_type_index)
+if(${_build_type_index} GREATER -1)
+    # set it optionally, so a custom CMAKE_BUILD_TYPE can be used as well, if needed
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS ${DEFAULT_CMAKE_BUILD_TYPES})
+endif()
+unset(_build_type_index)
+#
+
+project(hidapi LANGUAGES C)
+
+if(APPLE)
+    if(NOT CMAKE_VERSION VERSION_LESS "3.15")
+        option(CMAKE_FRAMEWORK "Build macOS/iOS Framework version of the library" OFF)
+    endif()
+elseif(NOT WIN32)
+    if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+        option(HIDAPI_WITH_HIDRAW "Build HIDRAW-based implementation of HIDAPI" ON)
+        option(HIDAPI_WITH_LIBUSB "Build LIBUSB-based implementation of HIDAPI" ON)
+    endif()
+endif()
+
+option(BUILD_SHARED_LIBS "Build shared version of the libraries, otherwise build statically" ON)
+
+set(HIDAPI_INSTALL_TARGETS ON)
+set(HIDAPI_PRINT_VERSION ON)
+
+add_subdirectory(src)
+
+set(BUILD_HIDTEST_DEFAULT OFF)
+if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+    set(BUILD_HIDTEST_DEFAULT ON)
+endif()
+option(HIDAPI_BUILD_HIDTEST "Build small console test application hidtest" ${BUILD_HIDTEST_DEFAULT})
+if(HIDAPI_BUILD_HIDTEST)
+    add_subdirectory(hidtest)
+endif()

configure.ac

@@ -189,7 +189,7 @@ mkdir testgui/TestGUI.app/Contents/MacOS/
 
 if test "x$testgui_enabled" != "xno"; then
 	if test "x$os" = xdarwin; then
-		# On Mac OS, don't use pkg-config.
+		# On Mac OS, do not use pkg-config.
 		AC_CHECK_PROG([foxconfig], [fox-config], [fox-config], false)
 		if test "x$foxconfig" = "xfalse"; then
 			hidapi_prog_error fox-config "FOX Toolkit"

hidtest/CMakeLists.txt

@@ -0,0 +1,23 @@
+project(hidtest C)
+
+set(HIDAPI_HIDTEST_TARGETS)
+if(NOT WIN32 AND NOT APPLE AND CMAKE_SYSTEM_NAME MATCHES "Linux")
+    if(TARGET hidapi::hidraw)
+        add_executable(hidtest_hidraw test.c)
+        target_link_libraries(hidtest_hidraw hidapi::hidraw)
+        list(APPEND HIDAPI_HIDTEST_TARGETS hidtest_hidraw)
+    endif()
+    if(TARGET hidapi::libusb)
+        add_executable(hidtest_libusb test.c)
+        target_link_libraries(hidtest_libusb hidapi::libusb)
+        list(APPEND HIDAPI_HIDTEST_TARGETS hidtest_libusb)
+    endif()
+else()
+    add_executable(hidtest test.c)
+    target_link_libraries(hidtest hidapi::hidapi)
+    list(APPEND HIDAPI_HIDTEST_TARGETS hidtest)
+endif()
+
+install(TARGETS ${HIDAPI_HIDTEST_TARGETS}
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+)

libusb/CMakeLists.txt

@@ -0,0 +1,42 @@
+cmake_minimum_required(VERSION 3.6.3 FATAL_ERROR)
+
+add_library(hidapi_libusb
+    ${HIDAPI_PUBLIC_HEADERS}
+    hid.c
+)
+target_link_libraries(hidapi_libusb PUBLIC hidapi_include)
+
+if(TARGET usb-1.0)
+    target_link_libraries(hidapi_libusb PRIVATE usb-1.0)
+else()
+    include(FindPkgConfig)
+    pkg_check_modules(libusb REQUIRED IMPORTED_TARGET libusb-1.0>=1.0.9)
+    target_link_libraries(hidapi_libusb PRIVATE PkgConfig::libusb)
+endif()
+
+find_package(Threads REQUIRED)
+target_link_libraries(hidapi_libusb PRIVATE Threads::Threads)
+
+set_target_properties(hidapi_libusb
+    PROPERTIES
+        EXPORT_NAME "libusb"
+        OUTPUT_NAME "hidapi-libusb"
+        VERSION ${PROJECT_VERSION}
+        SOVERSION ${PROJECT_VERSION_MAJOR}
+        PUBLIC_HEADER "${HIDAPI_PUBLIC_HEADERS}"
+)
+
+# compatibility with find_package()
+add_library(hidapi::libusb ALIAS hidapi_libusb)
+# compatibility with raw library link
+add_library(hidapi-libusb ALIAS hidapi_libusb)
+
+if(HIDAPI_INSTALL_TARGETS)
+    install(TARGETS hidapi_libusb EXPORT hidapi
+        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/hidapi"
+    )
+endif()
+
+hidapi_configure_pc("${PROJECT_ROOT}/pc/hidapi-libusb.pc.in")

linux/CMakeLists.txt

@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 3.6.3 FATAL_ERROR)
+
+add_library(hidapi_hidraw
+    ${HIDAPI_PUBLIC_HEADERS}
+    hid.c
+)
+target_link_libraries(hidapi_hidraw PUBLIC hidapi_include)
+
+find_package(Threads REQUIRED)
+
+include(FindPkgConfig)
+pkg_check_modules(libudev REQUIRED IMPORTED_TARGET libudev)
+
+target_link_libraries(hidapi_hidraw PRIVATE PkgConfig::libudev Threads::Threads)
+
+set_target_properties(hidapi_hidraw
+    PROPERTIES
+        EXPORT_NAME "hidraw"
+        OUTPUT_NAME "hidapi-hidraw"
+        VERSION ${PROJECT_VERSION}
+        SOVERSION ${PROJECT_VERSION_MAJOR}
+        PUBLIC_HEADER "${HIDAPI_PUBLIC_HEADERS}"
+)
+
+# compatibility with find_package()
+add_library(hidapi::hidraw ALIAS hidapi_hidraw)
+# compatibility with raw library link
+add_library(hidapi-hidraw ALIAS hidapi_hidraw)
+
+if(HIDAPI_INSTALL_TARGETS)
+    install(TARGETS hidapi_hidraw EXPORT hidapi
+        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/hidapi"
+    )
+endif()
+
+hidapi_configure_pc("${PROJECT_ROOT}/pc/hidapi-hidraw.pc.in")

mac/CMakeLists.txt

@@ -0,0 +1,46 @@
+cmake_minimum_required(VERSION 3.4.3 FATAL_ERROR)
+
+add_library(hidapi_darwin
+    ${HIDAPI_PUBLIC_HEADERS}
+    hid.c
+)
+
+find_package(Threads REQUIRED)
+
+target_link_libraries(hidapi_darwin
+    PUBLIC hidapi_include
+    PRIVATE Threads::Threads
+    PRIVATE "-framework IOKit" "-framework CoreFoundation" "-framework AppKit"
+)
+
+set_target_properties(hidapi_darwin
+    PROPERTIES
+        EXPORT_NAME "darwin"
+        OUTPUT_NAME "hidapi"
+        VERSION ${PROJECT_VERSION}
+        SOVERSION ${PROJECT_VERSION_MAJOR}
+        MACHO_COMPATIBILITY_VERSION ${PROJECT_VERSION_MAJOR}
+        FRAMEWORK_VERSION ${PROJECT_VERSION_MAJOR}
+        PUBLIC_HEADER "${HIDAPI_PUBLIC_HEADERS}"
+)
+
+# compatibility with find_package()
+add_library(hidapi::darwin ALIAS hidapi_darwin)
+# compatibility with raw library link
+add_library(hidapi ALIAS hidapi_darwin)
+
+set(PUBLIC_HEADER_DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
+if(NOT CMAKE_FRAMEWORK)
+    set(PUBLIC_HEADER_DESTINATION "${PUBLIC_HEADER_DESTINATION}/hidapi")
+endif()
+
+if(HIDAPI_INSTALL_TARGETS)
+    install(TARGETS hidapi_darwin EXPORT hidapi
+        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        FRAMEWORK DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+        PUBLIC_HEADER DESTINATION "${PUBLIC_HEADER_DESTINATION}"
+    )
+endif()
+
+hidapi_configure_pc("${PROJECT_ROOT}/pc/hidapi.pc.in")

pc/hidapi-hidraw.pc.in

@@ -5,6 +5,7 @@ includedir=@includedir@
 
 Name: hidapi-hidraw
 Description: C Library for USB/Bluetooth HID device access from Linux, Mac OS X, FreeBSD, and Windows. This is the hidraw implementation.
+URL: https://github.com/libusb/hidapi
 Version: @VERSION@
 Libs: -L${libdir} -lhidapi-hidraw
 Cflags: -I${includedir}/hidapi

pc/hidapi-libusb.pc.in

@@ -5,6 +5,7 @@ includedir=@includedir@
 
 Name: hidapi-libusb
 Description: C Library for USB HID device access from Linux, Mac OS X, FreeBSD, and Windows. This is the libusb implementation.
+URL: https://github.com/libusb/hidapi
 Version: @VERSION@
 Libs: -L${libdir} -lhidapi-libusb
 Cflags: -I${includedir}/hidapi

pc/hidapi.pc.in

@@ -5,6 +5,7 @@ includedir=@includedir@
 
 Name: hidapi
 Description: C Library for USB/Bluetooth HID device access from Linux, Mac OS X, FreeBSD, and Windows.
+URL: https://github.com/libusb/hidapi
 Version: @VERSION@
 Libs: -L${libdir} -lhidapi
 Cflags: -I${includedir}/hidapi