am7xxx: assign device_list next to its first use

[libam7xxx.git] / examples / CMakeLists.txt

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index fcf8068..64f15c0 100644 (file)
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,3 +1,4 @@
+include(CheckSymbolExists)
 add_definitions("-D_POSIX_C_SOURCE=2") # for getopt()
 add_definitions("-D_POSIX_SOURCE") # for sigaction
 add_definitions("-D_BSD_SOURCE") # for strdup
@@ -17,11 +18,32 @@ endif()
 option(BUILD_AM7XXX-PLAY "Build a more complete example: am7xxx-play" TRUE)
 if(BUILD_AM7XXX-PLAY)
   find_package(FFmpeg REQUIRED)
+  set(CMAKE_REQUIRED_LIBRARIES ${FFMPEG_LIBRARIES}) 
+  set(CMAKE_REQUIRED_INCLUDES ${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS}) 
+  check_symbol_exists(avformat_open_input
+    "${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS}/libavformat/avformat.h"
+    HAVE_AVFORMAT_OPEN_INPUT)
+  if(NOT HAVE_AVFORMAT_OPEN_INPUT)
+    message(FATAL_ERROR
+      "Function avformat_open_input missing. Please use a newer FFmpeg release.")
+  endif()
 
   include_directories(${FFMPEG_LIBAVDEVICE_INCLUDE_DIRS})
   include_directories(${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS})
   include_directories(${FFMPEG_LIBSWSCALE_INCLUDE_DIRS})
 
+  set(CMAKE_REQUIRED_DEFINITIONS -D_POSIX_SOURCE)
+  check_symbol_exists(sigaction "signal.h" HAVE_SIGACTION)
+  if (HAVE_SIGACTION)
+    add_definitions("-DHAVE_SIGACTION")
+  endif()
+
+  check_symbol_exists(strtok_r "string.h" HAVE_STRTOK_R)
+  if (HAVE_STRTOK_R)
+    add_definitions("-DHAVE_STRTOK_R")
+  endif()
+  set(CMAKE_REQUIRED_DEFINITIONS)
+
   # xcb is used to retrieve the full screen dimensions when using x11grab
   # as input format
   find_package(XCB)
@@ -39,3 +61,17 @@ if(BUILD_AM7XXX-PLAY)
   install(TARGETS am7xxx-play
     DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
 endif()
+
+# Build a simple usb_mode_switch clone for am7xxx devices
+option(BUILD_AM7XXX_MODE_SWITCH "Build a simple usb_mode_switch clone for am7xxx devices" TRUE)
+if(BUILD_AM7XXX_MODE_SWITCH)
+
+  find_package(libusb-1.0 REQUIRED)
+  include_directories(${LIBUSB_1_INCLUDE_DIRS})
+
+  add_executable(am7xxx_mode_switch am7xxx_mode_switch.c)
+  target_link_libraries(am7xxx_mode_switch ${LIBUSB_1_LIBRARIES})
+  install(TARGETS am7xxx_mode_switch
+    DESTINATION "${CMAKE_INSTALL_PREFIX}/bin")
+endif()
+