From 89a3169e7d78b6aff609aa88760af2fd5c61cf7c Mon Sep 17 00:00:00 2001
From: Marius Kintel <kintel@sim.no>
Date: Mon, 16 Feb 2009 14:54:34 +0100
Subject: [PATCH] Added FindUSB cmake macro

---
 CMakeLists.txt        |    4 ++++
 FindUSB.cmake         |   38 ++++++++++++++++++++++++++++++++++++++
 ftdipp/CMakeLists.txt |    2 +-
 src/CMakeLists.txt    |    2 +-
 4 files changed, 44 insertions(+), 2 deletions(-)
 create mode 100644 FindUSB.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index dd05d4b..40b4ceb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,7 @@ set(MAJOR_VERSION 0)
 set(MINOR_VERSION 15)
 set(PATCH_VERSION 0)
 set(VERSION_STRING ${MAJOR_VERSION}.${MINOR_VERSION}.${PATCH_VERSION})
+SET(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}")
 
 # CMake
 if("${CMAKE_BUILD_TYPE}" STREQUAL "")
@@ -18,6 +19,9 @@ if(${CMAKE_BUILD_TYPE} STREQUAL Debug)
    add_definitions(-DDEBUG)
 endif(${CMAKE_BUILD_TYPE} STREQUAL Debug)
 
+FIND_PACKAGE(USB REQUIRED)
+INCLUDE_DIRECTORIES(${LIBUSB_INCLUDE_DIR})
+
 # Set components
 set(CPACK_COMPONENTS_ALL sharedlibs staticlibs headers)
 set(CPACK_COMPONENT_SHAREDLIBS_DISPLAY_NAME "Shared libraries")
diff --git a/FindUSB.cmake b/FindUSB.cmake
new file mode 100644
index 0000000..566cdd8
--- /dev/null
+++ b/FindUSB.cmake
@@ -0,0 +1,38 @@
+# - Try to find the freetype library
+# Once done this defines
+#
+#  LIBUSB_FOUND - system has libusb
+#  LIBUSB_INCLUDE_DIR - the libusb include directory
+#  LIBUSB_LIBRARIES - Link these to use libusb
+
+# Copyright (c) 2006, 2008  Laurent Montel, <montel@kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+
+if (LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
+
+  # in cache already
+  set(LIBUSB_FOUND TRUE)
+
+else (LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
+  IF (NOT WIN32)
+    # use pkg-config to get the directories and then use these values
+    # in the FIND_PATH() and FIND_LIBRARY() calls
+    find_package(PkgConfig)
+    pkg_check_modules(PC_LIBUSB libusb)
+  ENDIF(NOT WIN32)
+
+  FIND_PATH(LIBUSB_INCLUDE_DIR usb.h
+    PATHS ${PC_LIBUSB_INCLUDEDIR} ${PC_LIBUSB_INCLUDE_DIRS})
+
+  FIND_LIBRARY(LIBUSB_LIBRARIES NAMES usb 
+    PATHS ${PC_LIBUSB_LIBDIR} ${PC_LIBUSB_LIBRARY_DIRS})
+
+  include(FindPackageHandleStandardArgs)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBUSB DEFAULT_MSG LIBUSB_LIBRARIES LIBUSB_INCLUDE_DIR)
+
+  MARK_AS_ADVANCED(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARIES)
+
+endif (LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
diff --git a/ftdipp/CMakeLists.txt b/ftdipp/CMakeLists.txt
index 2759208..411abdb 100644
--- a/ftdipp/CMakeLists.txt
+++ b/ftdipp/CMakeLists.txt
@@ -21,7 +21,7 @@ message(STATUS "Building libftdi++")
 add_library(ftdi_cpp SHARED ${cpp_sources})
 
 # Dependencies
-target_link_libraries(ftdi_cpp ftdi usb ${BOOST_LIBRARIES})
+target_link_libraries(ftdi_cpp ftdi ${LIBUSB_LIBRARIES} ${BOOST_LIBRARIES})
 
 # Install
 if(${UNIX})
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6f1c40b..7965999 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -10,7 +10,7 @@ set(c_headers     ftdi.h)
 add_library(ftdi SHARED ${c_sources})
 
 # Dependencies
-target_link_libraries(ftdi usb)
+target_link_libraries(ftdi ${LIBUSB_LIBRARIES})
 
 # Install
 if(${UNIX})
-- 
1.7.1