Include FindPackageHandleStandardArgs.cmake in every find module using it

It just worked so far because FindCXX11 happend to include it
already, and it also happend to be the first FindModule used.

cmake/Modules/FindAppKit.cmake

@@ -11,6 +11,7 @@ else()
 
 	set(AppKit_LIBRARIES ${APPKIT_FRAMEWORK} CACHE STRING "AppKit framework")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(AppKit DEFAULT_MSG APPKIT_FRAMEWORK)
 	mark_as_advanced(APPKIT_FRAMEWORK)
 endif()

cmake/Modules/FindCXX11.cmake

@@ -13,7 +13,6 @@ if(CXX11_FLAGS)
 endif()
 
 include(CheckCXXSourceCompiles)
-include(FindPackageHandleStandardArgs)
 
 if(MSVC)
     set(CXX11_FLAG_CANDIDATES
@@ -64,5 +63,6 @@ endforeach(FLAG ${CXX11_FLAG_CANDIDATES})
 
 set(CXX11_FLAGS "${CXX11_FLAGS_INTERNAL}" CACHE STRING "C++11 Flags")
 
+include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(CXX11 DEFAULT_MSG CXX11_FLAGS)
 mark_as_advanced(CXX11_FLAGS)

cmake/Modules/FindFreetype.cmake

@@ -75,6 +75,7 @@ else()
 	set(FREETYPE_INCLUDE_DIRS ${FREETYPE_INCLUDE_DIR} CACHE PATH "freetype include dirs")
 	set(FREETYPE_LIBRARIES ${FREETYPE_LIB} CACHE STRING "freetype libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Freetype DEFAULT_MSG FREETYPE_LIB FREETYPE_INCLUDE_DIR_ft2build FREETYPE_INCLUDE_DIR_freetype2)
 	mark_as_advanced(FREETYPE_INCLUDE_DIR FREETYPE_INCLUDE_DIR_ft2build FREETYPE_INCLUDE_DIR_freetype2 FREETYPE_LIB)
 endif()

cmake/Modules/FindIconv.cmake

@@ -47,6 +47,7 @@ else()
 	set(ICONV_INCLUDE_DIRS ${ICONV_INCLUDE_DIR} CACHE PATH "iconv include dir")
 	set(ICONV_LIBRARIES ${ICONV_LIB} CACHE STRING "iconv libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Iconv DEFAULT_MSG ICONV_LIB ICONV_INCLUDE_DIR)
 	mark_as_advanced(ICONV_INCLUDE_DIR ICONV_LIB)
 endif()

cmake/Modules/FindJansson.cmake

@@ -61,6 +61,7 @@ else()
 	set(JANSSON_LIBRARIES ${Jansson_LIB} CACHE STRING "Jansson libraries")
 	set(JANSSON_VERSION "${_JANSSON_VERSION_STRING}" CACHE STRING "Jansson version")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Jansson
 		FOUND_VAR JANSSON_FOUND
 		REQUIRED_VARS Jansson_LIB Jansson_INCLUDE_DIR

cmake/Modules/FindLibavcodec.cmake

@@ -52,6 +52,7 @@ else()
 	set(LIBAVCODEC_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIR} CACHE PATH "Libavcodec include dir")
 	set(LIBAVCODEC_LIBRARIES ${AVCODEC_LIB} CACHE STRING "Libavcodec libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Libavcodec DEFAULT_MSG AVCODEC_LIB FFMPEG_INCLUDE_DIR)
 	mark_as_advanced(FFMPEG_INCLUDE_DIR AVCODEC_LIB)
 endif()

cmake/Modules/FindLibavformat.cmake

@@ -48,6 +48,7 @@ else()
 	set(LIBAVFORMAT_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIR} CACHE PATH "Libavformat include dir")
 	set(LIBAVFORMAT_LIBRARIES ${AVFORMAT_LIB} CACHE STRING "Libavformat libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Libavformat DEFAULT_MSG AVFORMAT_LIB FFMPEG_INCLUDE_DIR)
 	mark_as_advanced(FFMPEG_INCLUDE_DIR AVFORMAT_LIB)
 endif()

cmake/Modules/FindLibavutil.cmake

@@ -48,6 +48,7 @@ else()
 	set(LIBAVUTIL_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIR} CACHE PATH "Libavutil include dir")
 	set(LIBAVUTIL_LIBRARIES ${AVUTIL_LIB} CACHE STRING "Libavutil libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Libavutil DEFAULT_MSG AVUTIL_LIB FFMPEG_INCLUDE_DIR)
 	mark_as_advanced(FFMPEG_INCLUDE_DIR AVUTIL_LIB)
 endif()

cmake/Modules/FindLibfdk.cmake

@@ -54,6 +54,7 @@ else()
 	set(LIBFDK_INCLUDE_DIRS ${Libfdk_INCLUDE_DIR} CACHE PATH "Libfdk include dir")
 	set(LIBFDK_LIBRARIES ${Libfdk_LIB} CACHE STRING "Libfdk libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Libfdk DEFAULT_MSG Libfdk_LIB Libfdk_INCLUDE_DIR)
 	mark_as_advanced(Libfdk_INCLUDE_DIR Libfdk_LIB)
 endif()

cmake/Modules/FindLibswresample.cmake

@@ -48,6 +48,7 @@ else()
 	set(LIBSWRESAMPLE_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIR} CACHE PATH "Libswresample include dir")
 	set(LIBSWRESAMPLE_LIBRARIES ${SWRESAMPLE_LIB} CACHE STRING "Libswresample libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Libswresample DEFAULT_MSG SWRESAMPLE_LIB FFMPEG_INCLUDE_DIR)
 	mark_as_advanced(FFMPEG_INCLUDE_DIR SWRESAMPLE_LIB)
 endif()

cmake/Modules/FindLibswscale.cmake

@@ -48,6 +48,7 @@ else()
 	set(LIBSWSCALE_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIR} CACHE PATH "Libswscale include dir")
 	set(LIBSWSCALE_LIBRARIES ${SWSCALE_LIB} CACHE STRING "Libswscale libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Libswscale DEFAULT_MSG SWSCALE_LIB FFMPEG_INCLUDE_DIR)
 	mark_as_advanced(FFMPEG_INCLUDE_DIR SWSCALE_LIB)
 endif()

cmake/Modules/FindLibv4l2.cmake

@@ -28,6 +28,7 @@ else()
 	set(LIBV4L2_LIBRARIES "${V4L2_LIB}"
 		CACHE STRING "v4l2 libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(LibV4L2 DEFAULT_MSG V4L2_LIB
 		V4L2_INCLUDE_DIR)
 	mark_as_advanced(V4L2_INCLUDE_DIR V4L2_LIB)

cmake/Modules/FindLibx264.cmake

@@ -54,6 +54,7 @@ else()
 	set(LIBX264_INCLUDE_DIRS ${X264_INCLUDE_DIR} CACHE PATH "x264 include dir")
 	set(LIBX264_LIBRARIES ${X264_LIB} CACHE STRING "x264 libraries")
 
+	include(FindPackageHandleStandardArgs)
 	find_package_handle_standard_args(Libx264 DEFAULT_MSG X264_LIB X264_INCLUDE_DIR)
 	mark_as_advanced(X264_INCLUDE_DIR X264_LIB)
 endif()