Make example programs optional.

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 234e666..fcf8068 100644 (file)
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -5,31 +5,37 @@ add_definitions("-D_BSD_SOURCE") # for strdup
 include_directories(${CMAKE_SOURCE_DIR}/src/)
 
 # Build a test app that sends a single picture
-add_executable(picoproj picoproj.c)
-target_link_libraries(picoproj am7xxx)
-install(TARGETS picoproj
-  DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
+option(BUILD_PICOPROJ "Build a test app that sends a single picture" TRUE)
+if(BUILD_PICOPROJ)
+  add_executable(picoproj picoproj.c)
+  target_link_libraries(picoproj am7xxx)
+  install(TARGETS picoproj
+    DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
+endif()
 
 # Build a more complete example
-find_package(FFmpeg REQUIRED)
+option(BUILD_AM7XXX-PLAY "Build a more complete example: am7xxx-play" TRUE)
+if(BUILD_AM7XXX-PLAY)
+  find_package(FFmpeg REQUIRED)
 
-include_directories(${FFMPEG_LIBAVDEVICE_INCLUDE_DIRS})
-include_directories(${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS})
-include_directories(${FFMPEG_LIBSWSCALE_INCLUDE_DIRS})
+  include_directories(${FFMPEG_LIBAVDEVICE_INCLUDE_DIRS})
+  include_directories(${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS})
+  include_directories(${FFMPEG_LIBSWSCALE_INCLUDE_DIRS})
 
-# xcb is used to retrieve the full screen dimensions when using x11grab
-# as input format
-find_package(XCB)
-if (XCB_FOUND)
-  add_definitions("${LIBXCB_DEFINITIONS} -DHAVE_XCB")
-  include_directories(${LIBXCB_INCLUDE_DIRS})
-endif()
+  # xcb is used to retrieve the full screen dimensions when using x11grab
+  # as input format
+  find_package(XCB)
+  if (XCB_FOUND)
+    add_definitions("${LIBXCB_DEFINITIONS} -DHAVE_XCB")
+    include_directories(${LIBXCB_INCLUDE_DIRS})
+  endif()
 
-add_executable(am7xxx-play am7xxx-play.c)
+  add_executable(am7xxx-play am7xxx-play.c)
 
-target_link_libraries(am7xxx-play am7xxx
-  ${FFMPEG_LIBRARIES}
-  ${FFMPEG_LIBSWSCALE_LIBRARIES}
-  ${LIBXCB_LIBRARIES})
-install(TARGETS am7xxx-play
-  DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
+  target_link_libraries(am7xxx-play am7xxx
+    ${FFMPEG_LIBRARIES}
+    ${FFMPEG_LIBSWSCALE_LIBRARIES}
+    ${LIBXCB_LIBRARIES})
+  install(TARGETS am7xxx-play
+    DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
+endif()