From: Reto Schneider Date: Sat, 7 Apr 2012 10:39:43 +0000 (+0200) Subject: Stop CMake if function avformat_open_input not available, X-Git-Tag: v0.1.3~37^2~12^2~1 X-Git-Url: https://git.ao2.it/libam7xxx.git/commitdiff_plain/a07b63bc2947bc34d370f6f3535a527b6ac1dbc1?ds=sidebyside Stop CMake if function avformat_open_input not available, print an error message. Prevents compile errors later on. --- diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index fcf8068..b7941ab 100644 --- 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 @@ -17,6 +18,15 @@ 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})