libfxlink: install the library

CMakeLists.txt

@@ -97,5 +97,11 @@ install(FILES "${BIN}/fxg1a" TYPE BIN)
 # fxconv
 install(PROGRAMS fxconv/fxconv-main.py TYPE BIN RENAME fxconv)
 install(FILES fxconv/fxconv.py TYPE BIN)
+# libfxlink
+install(FILES "${BIN}/include/fxlink/config.h" DESTINATION include/fxlink/)
+install(DIRECTORY libfxlink/include/ DESTINATION include
+  FILES_MATCHING PATTERN "*.h")
+install(DIRECTORY libfxlink/cmake/ DESTINATION lib/cmake)
+install(TARGETS libfxlink DESTINATION lib)
 # fxlink
 install(TARGETS fxlink)

libfxlink/cmake/FindLibFxlink.cmake

@@ -0,0 +1,58 @@
+# Locate the library file and includes
+
+message("test: $ENV{HOME}/.local/lib $ENV{FXSDK_PATH}/lib")
+find_library(
+  LIBFXLINK_PATH "fxlink"
+  HINTS "$ENV{HOME}/.local/lib" "$ENV{FXSDK_PATH}/lib"
+)
+if(LIBFXLINK_PATH STREQUAL "LIBFXLINK_PATH-NOTFOUND")
+  message(SEND_ERROR
+    "Could not find libfxlink.a!\n"
+    "You can specify the install path with the environment variable "
+    "FXSDK_PATH, such as FXSDK_PATH=$HOME/.local")
+else()
+  get_filename_component(LIBFXLINK_PATH "${LIBFXLINK_PATH}/../.." ABSOLUTE)
+  set(LIBFXLINK_LIB "${LIBFXLINK_PATH}/lib/libfxlink.a")
+  set(LIBFXLINK_INCLUDE "${LIBFXLINK_PATH}/include")
+
+  message("(libfxlink) Found libfxlink at: ${LIBFXLINK_LIB}")
+  message("(libfxlink) Will take includes from: ${LIBFXLINK_INCLUDE}")
+endif()
+
+# Find library version
+
+if(NOT EXISTS "${LIBFXLINK_INCLUDE}/fxlink/config.h")
+  message(SEND_ERROR
+    "No <fxlink/config.h> exists at ${LIBFXLINK_INCLUDE}/fxlink/config.h\n"
+    "Is libfxlink installed alongside the headers?")
+endif()
+
+execute_process(
+  COMMAND sed "s/#define FXLINK_VERSION \"\\([^\"]\\{1,\\}\\)\"/\\1/p; d"
+          "${LIBFXLINK_INCLUDE}/fxlink/config.h"
+  OUTPUT_VARIABLE LIBFXLINK_VERSION
+  OUTPUT_STRIP_TRAILING_WHITESPACE)
+message("(libfxlink) Library version found in header: ${LIBFXLINK_VERSION}")
+
+# Handle find_package() arguments and find dependencies
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(LibFxlink
+  REQUIRED_VARS LIBFXLINK_LIB LIBFXLINK_INCLUDE
+  VERSION_VAR LIBFXLINK_VERSION)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(libusb REQUIRED libusb-1.0 IMPORTED_TARGET)
+
+# Generate targets
+
+if(LibFxlink_FOUND)
+  if(NOT TARGET LibFxlink::LibFxlink)
+    add_library(LibFxlink::LibFxlink UNKNOWN IMPORTED)
+  endif()
+
+  set_target_properties(LibFxlink::LibFxlink PROPERTIES
+    IMPORTED_LOCATION "${LIBFXLINK_LIB}"
+    INTERFACE_INCLUDE_DIRECTORIES "${LIBFXLINK_INCLUDE}")
+  target_link_libraries(LibFxlink::LibFxlink INTERFACE PkgConfig::libusb)
+endif()