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cmake_minimum_required(VERSION 3.6.3...3.25 FATAL_ERROR)
list(APPEND HIDAPI_PUBLIC_HEADERS "hidapi_libusb.h")
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)
if(HIDAPI_NO_ICONV)
target_compile_definitions(hidapi_libusb PRIVATE NO_ICONV)
else()
if(NOT ANDROID)
include(CheckCSourceCompiles)
if(NOT CMAKE_VERSION VERSION_LESS 3.11)
message(STATUS "Check for Iconv")
find_package(Iconv)
if(Iconv_FOUND)
if(NOT Iconv_IS_BUILT_IN)
target_link_libraries(hidapi_libusb PRIVATE Iconv::Iconv)
set(CMAKE_REQUIRED_LIBRARIES "Iconv::Iconv")
if(NOT BUILD_SHARED_LIBS)
set(HIDAPI_NEED_EXPORT_ICONV TRUE PARENT_SCOPE)
endif()
endif()
else()
message(STATUS "Iconv Explicitly check '-liconv'")
# Sometime the build environment is not setup
# in a way CMake can find Iconv on its own by default.
# But if we simply link against iconv (-liconv), the build may succeed
# due to other compiler/link flags.
set(CMAKE_REQUIRED_LIBRARIES "iconv")
check_c_source_compiles("
#include <stddef.h>
#include <iconv.h>
int main() {
char *a, *b;
size_t i, j;
iconv_t ic;
ic = iconv_open(\"to\", \"from\");
iconv(ic, &a, &i, &b, &j);
iconv_close(ic);
}
"
Iconv_EXPLICITLY_AT_ENV)
if(Iconv_EXPLICITLY_AT_ENV)
message(STATUS "Iconv Explicitly check '-liconv' - Available")
target_link_libraries(hidapi_libusb PRIVATE iconv)
else()
message(FATAL_ERROR "Iconv is not found, make sure to provide it in the build environment")
endif()
endif()
else()
# otherwise there is 2 options:
# 1) iconv is provided by Standard C library and the build will be just fine
# 2) The _user_ has to provide additional compilation options for this project/target
endif()
# check for error: "conflicting types for 'iconv'"
check_c_source_compiles("#include<iconv.h>
extern size_t iconv (iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
int main() {}"
HIDAPI_ICONV_CONST)
if(HIDAPI_ICONV_CONST)
target_compile_definitions(hidapi_libusb PRIVATE "ICONV_CONST=const")
endif()
else()
# On Android Iconv is disabled on the code level anyway, so no issue;
endif()
endif()
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")
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