cmake: Copy DLLs with executables on Windows

Subsumes PR #282.

Author: xlz

CMakeLists.txt

@@ -6,6 +6,11 @@ if(WIN32 AND NOT MINGW)
   endif()
 endif()
 
+IF(WIN32)
+  # no permission for the default install prefix %ProgramFiles%
+  SET(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE STRING "installation path")
+ENDIF()
+
 IF(NOT DEFINED CMAKE_BUILD_TYPE)
   # No effect for multi-configuration generators (e.g. for Visual Studio)
   SET(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "Choose: RelWithDebInfo Release Debug MinSizeRel None")
@@ -125,12 +130,18 @@ SET(LIBRARIES
   ${LIBFREENECT2_THREADING_LIBRARIES}
 )
 
+SET(LIBFREENECT2_DLLS
+  ${LibUSB_DLL}
+  ${TurboJPEG_DLL}
+)
+
 IF(ENABLE_OPENGL)
   FIND_PACKAGE(GLFW3)
   FIND_PACKAGE(OpenGL)
   IF(GLFW3_FOUND)
     INCLUDE_DIRECTORIES(${GLFW3_INCLUDE_DIRS})
 
+    LIST(APPEND LIBFREENECT2_DLLS ${GLFW3_DLL})
     LIST(APPEND LIBRARIES
       ${GLFW3_LIBRARIES}
       ${OPENGL_gl_LIBRARY}

cmake_modules/FindGLFW3.cmake

@@ -58,5 +58,17 @@ FIND_LIBRARY(GLFW3_LIBRARIES
     ${_SUFFIX}
 )
 
+IF(WIN32)
+FIND_FILE(GLFW3_DLL
+  glfw3.dll
+  PATHS
+    "${DEPENDS_DIR}/glfw"
+    "$ENV{ProgramW6432}/glfw"
+    ENV GLFW_ROOT
+  PATH_SUFFIXES
+    ${_SUFFIX}
+)
+ENDIF()
+
 INCLUDE(FindPackageHandleStandardArgs)
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(GLFW3 "Could NOT find GLFW3 - try adding GLFW_ROOT in enviroment variables." GLFW3_LIBRARIES GLFW3_INCLUDE_DIRS)

cmake_modules/FindLibUSB.cmake

@@ -53,5 +53,22 @@ FIND_LIBRARY(LibUSB_LIBRARIES
     MS64/dll
 )
 
+IF(WIN32)
+FIND_FILE(LibUSB_DLL
+  libusb-1.0.dll
+  PATHS
+    "${DEPENDS_DIR}/libusb"
+    "${DEPENDS_DIR}/libusbx"
+    ENV LibUSB_ROOT
+  PATH_SUFFIXES
+    x64/Release/dll
+    x64/Debug/dll
+    Win32/Release/dll
+    Win32/Debug/dll
+    MS64
+    MS64/dll
+)
+ENDIF()
+
 INCLUDE(FindPackageHandleStandardArgs)
 FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibUSB DEFAULT_MSG LibUSB_LIBRARIES LibUSB_INCLUDE_DIRS)

cmake_modules/FindTurboJPEG.cmake

@@ -38,6 +38,20 @@ FIND_LIBRARY(TurboJPEG_LIBRARIES
     lib64
 )
 
+IF(WIN32)
+FIND_FILE(TurboJPEG_DLL
+  turbojpeg.dll
+  DOC "Found TurboJPEG DLL path"
+  PATHS
+    "${DEPENDS_DIR}/libjpeg_turbo"
+    "${DEPENDS_DIR}/libjpeg-turbo64"
+    "C:/libjpeg-turbo64"
+    ENV TurboJPEG_ROOT
+  PATH_SUFFIXES
+    bin
+)
+ENDIF()
+
 IF(TurboJPEG_INCLUDE_DIRS AND TurboJPEG_LIBRARIES)
 INCLUDE(CheckCSourceCompiles)
 set(CMAKE_REQUIRED_INCLUDES ${TurboJPEG_INCLUDE_DIRS})

examples/CMakeLists.txt

@@ -29,8 +29,10 @@ LIST(APPEND CMAKE_MODULE_PATH ${freenect2_ROOT_DIR}/cmake_modules) # FindGLFW3.c
 IF(TARGET freenect2)
   MESSAGE(STATUS "Using in-tree freenect2 target")
   SET(freenect2_LIBRARIES freenect2)
+  SET(freenect2_DLLS ${LIBFREENECT2_DLLS})
 ELSE()
   FIND_PACKAGE(freenect2 REQUIRED)
+  # Out-of-tree build will have to have DLLs manually copied.
 ENDIF()
 
 INCLUDE_DIRECTORIES(
@@ -45,6 +47,10 @@ SET(Protonect_LIBRARIES
   ${freenect2_LIBRARIES}
 )
 
+SET(Protonect_DLLS
+  ${freenect2_DLLS}
+)
+
 IF(ENABLE_OPENGL)
   FIND_PACKAGE(GLFW3)
   FIND_PACKAGE(OpenGL)
@@ -54,6 +60,7 @@ IF(ENABLE_OPENGL)
       ${flextGL_INCLUDE_DIRS}
     )
 
+    LIST(APPEND Protonect_DLLS ${GLFW3_DLL})
     LIST(APPEND Protonect_src
       viewer.cpp
       ${flextGL_SOURCES}
@@ -73,3 +80,14 @@ ADD_EXECUTABLE(Protonect
 TARGET_LINK_LIBRARIES(Protonect
   ${Protonect_LIBRARIES}
 )
+
+IF(WIN32)
+  INSTALL(TARGETS Protonect DESTINATION bin)
+  LIST(REMOVE_DUPLICATES Protonect_DLLS)
+  FOREACH(FILEI ${Protonect_DLLS})
+    ADD_CUSTOM_COMMAND(TARGET Protonect POST_BUILD
+      COMMAND ${CMAKE_COMMAND} -E copy_if_different ${FILEI} $<TARGET_FILE_DIR:Protonect>
+    )
+  ENDFOREACH(FILEI)
+  INSTALL(FILES ${Protonect_DLLS} DESTINATION bin)
+ENDIF()