cmake: add cache variables for BUILD_SHARED_LIBS & VVDEC_LIBRARY_ONLY

closes #202

CMakeLists.txt

@@ -123,6 +123,10 @@ set( VVDEC_ENABLE_LOCAL_BITSTREAM_DOWNLOAD OFF CACHE BOOL "Enable or disable
 # also install the test executable vvdecapp instead of the libraries and headers only
 set( VVDEC_INSTALL_VVDECAPP OFF CACHE BOOL "Enable or disable installing the test vvdecapp" )
 
+set( VVDEC_LIBRARY_ONLY OFF CACHE BOOL "Build libvvdec only (no vvdecapp)" )
+
+set( BUILD_SHARED_LIBS OFF CACHE BOOL "Build libvvdec as a shared library" )
+
 # enable postfix
 set( VVDEC_ENABLE_BUILD_TYPE_POSTFIX OFF CACHE BOOL "Enable or disable build type postfix for apps and libs" )
 

cmake/modules/vvdecInstall.cmake

@@ -58,15 +58,19 @@ target_include_directories( vvdec SYSTEM INTERFACE $<INSTALL_INTERFACE:${CMAKE_
 install( FILES ${CMAKE_BINARY_DIR}/vvdec/version.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/vvdec )
 install( DIRECTORY include/vvdec DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} )
 
-if( VVDEC_INSTALL_VVDECAPP OR (${CMAKE_SYSTEM_NAME} STREQUAL "Emscripten") )
- # for Emscripten/WASM builds vvdecapp is always installed, since that is used like a library
- set( INSTALL_TARGETS "vvdec;vvdecapp" )
-else()
- set( INSTALL_TARGETS "vvdec" )
+if( VVDEC_INSTALL_VVDECAPP AND VVDEC_LIBRARY_ONLY )
+ message( FATAL_ERROR "VVDEC_INSTALL_VVDECAPP conflicts with VVDEC_LIBRARY_ONLY" )
+endif()
 
- if ( NOT VVDEC_INSTALL_VVDECAPP )
- install( CODE "message( NOTICE \"The vvdecapp binary is not installed by default anymore. To also install vvdecapp set '-DVVDEC_INSTALL_VVDECAPP=ON' (with make: 'install-vvdecapp=1')\" )" )
- endif()
+set( INSTALL_TARGETS vvdec )
+
+if( NOT VVDEC_LIBRARY_ONLY )
+ if( VVDEC_INSTALL_VVDECAPP
+ OR (${CMAKE_SYSTEM_NAME} STREQUAL "Emscripten") ) # for Emscripten/WASM builds vvdecapp is always installed, since that is used like a library
+ list( APPEND INSTALL_TARGETS vvdecapp )
+ else()
+ install( CODE "message( NOTICE \"The vvdecapp binary is not installed by default any more. To also install vvdecapp set '-DVVDEC_INSTALL_VVDECAPP=ON' (with make: 'install-vvdecapp=1')\" )" )
+ endif()
 endif()
 
 

source/App/vvdecapp/CMakeLists.txt

@@ -25,6 +25,9 @@ set_target_properties( ${EXE_NAME} PROPERTIES MINSIZEREL_POSTFIX "${CMAKE_MI
 if( VVDEC_INSTALL_RPATH )
  set_target_properties( ${EXE_NAME} PROPERTIES INSTALL_RPATH "${VVDEC_INSTALL_RPATH}" )
 endif()
+if( VVDEC_LIBRARY_ONLY )
+ set_target_properties( ${EXE_NAME} PROPERTIES EXCLUDE_FROM_ALL TRUE )
+endif()
 
 target_link_libraries( ${EXE_NAME} Threads::Threads vvdec )
 target_include_directories( ${EXE_NAME} PRIVATE ../../Lib/libmd5 )