chore(cmake): remove some useless refs to external deps

IO/src/decklink/CMakeLists.txt

@@ -39,7 +39,6 @@ target_include_directories(${PLUGIN_NAME} PRIVATE .)
 # but only reference DeckLinkAPI_h.h? Then the search path should be fine.
 
 target_include_directories(${PLUGIN_NAME} PRIVATE ../common/include)
-target_include_directories(${PLUGIN_NAME} PRIVATE "${CMAKE_EXTERNAL_DEPS}/include/decklink")
 
 set_property(TARGET ${PLUGIN_NAME} PROPERTY CXX_STANDARD 14)
 

IO/src/rtmp/CMakeLists.txt

@@ -188,10 +188,6 @@ endif(USE_AVFORMAT)
 
 include_lib_vs_headers(${PLUGIN_NAME})
 
-target_include_directories(${PLUGIN_NAME} PRIVATE ${CMAKE_EXTERNAL_DEPS}/include)
-
-target_include_directories(${PLUGIN_NAME} PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/Intel_Media_SDK)
-
 if(RTMP_QUICKSYNC)
   target_include_directories(${PLUGIN_NAME} PRIVATE Intel/include)
   target_compile_definitions(${PLUGIN_NAME} PRIVATE SUP_QUICKSYNC)
@@ -213,11 +209,6 @@ elseif(RTMP_NVENC_M)
   target_link_libraries(${PLUGIN_NAME} PRIVATE ${libv4l2})
 endif(RTMP_NVENC)
 
-if(LINUX)
-  # needed to include x264.h
-  target_include_directories(${PLUGIN_NAME} PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/ffmpeg)
-endif(LINUX)
-
 target_include_directories(${PLUGIN_NAME} PRIVATE include)
 target_include_directories(${PLUGIN_NAME} PRIVATE ../common/include)
 target_include_directories(${PLUGIN_NAME} PRIVATE "${INTEL_MEDIA_SDK_PATH}\\include")
@@ -230,7 +221,6 @@ if(WINDOWS)
   find_library(libx264 libx264 REQUIRED)
   find_library(librtmp librtmp REQUIRED)
   find_package(mp3lame CONFIG REQUIRED)
-  find_library(libmpghip libmpghip-static HINTS "${CMAKE_EXTERNAL_LIB}/lame" REQUIRED NO_DEFAULT_PATH)
   set(DirectX_LIB
       dxva2
       d3d9

cmake/CUDA.cmake

@@ -43,7 +43,6 @@ if(LINUX)
     find_library(CUDART cudart PATHS ${LINUX_CUDA_PATH})
     find_library(NVML nvidia-ml PATHS "${LINUX_CUDA_PATH}/stubs")
   endif()
-  include_directories(${CMAKE_EXTERNAL_DEPS}/include)
   find_library(CUVID nvcuvid)
 endif(LINUX)
 

cmake/FindOpenEXR.cmake

@@ -8,8 +8,6 @@ if(APPLE)
   else()
     find_path(OpenEXR_ROOT_DIR include/openexr/half.h HINTS /usr/local)
   endif()
-else()
-  find_path(OpenEXR_ROOT_DIR include/openexr/half.h HINTS "${CMAKE_EXTERNAL_DEPS}" NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
 endif()
 
 if(APPLE)
@@ -22,8 +20,6 @@ elseif(LINUX)
   find_library(OpenEXR_LIBRARY_DIR libHalf.so)
 elseif(ANDROID)
   find_path(OpenEXR_LIBRARY_DIR libHalf.so HINTS "${CMAKE_EXTERNAL_DEPS}" PATH_SUFFIXES lib/openexr/ NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
-elseif(WINDOWS)
-  find_path(OpenEXR_LIBRARY_DIR Half.lib HINTS "${CMAKE_EXTERNAL_DEPS}" PATH_SUFFIXES lib/openexr/ NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
 endif()
 
 if(LINUX)
@@ -34,8 +30,6 @@ elseif(APPLE)
   elseif()
     find_path(OpenEXR_INCLUDE_DIR OpenEXR/half.h HINTS /usr/local/include)
   endif()
-else()
-  find_path(OpenEXR_INCLUDE_DIR openexr/half.h HINTS "${CMAKE_EXTERNAL_DEPS}" PATH_SUFFIXES include/ NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
 endif()
 
 if(LINUX OR APPLE)
@@ -63,8 +57,6 @@ foreach(OpenEXR_LIB Half Iex Imath IlmImf IlmThread)
         find_library(OpenEXR_${OpenEXR_LIB}_LIBRARY ${OpenEXR_LIB} NO_DEFAULT_PATH HINTS "${CMAKE_EXTERNAL_DEPS}" PATH_SUFFIXES lib/ NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
     elseif(APPLE)
       find_library(OpenEXR_${OpenEXR_LIB}_LIBRARY ${OpenEXR_LIB} NO_DEFAULT_PATH HINTS ${OpenEXR_ROOT_DIR} PATH_SUFFIXES lib/)
-    else()
-      find_library(OpenEXR_${OpenEXR_LIB}_LIBRARY ${OpenEXR_LIB} NO_DEFAULT_PATH HINTS "${CMAKE_EXTERNAL_DEPS}" PATH_SUFFIXES lib/openexr/ NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
     endif()
 
     if(OpenEXR_${OpenEXR_LIB}_LIBRARY)

lib/src/autocrop/CMakeLists.txt

@@ -20,10 +20,7 @@ function(configure_target BACKEND_NAME)
 
   target_include_directories(autocrop_${BACKEND_NAME}
                              SYSTEM
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/ceres
                              PRIVATE ${EIGEN3_INCLUDE_DIRS}
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/glog
                              PRIVATE ${OpenCV_INCLUDE_DIRS})
 
   if (WINDOWS)

lib/src/calibration/CMakeLists.txt

@@ -85,10 +85,7 @@ function(configure_target BACKEND_NAME)
 
   target_include_directories(calibration_${BACKEND_NAME}
                              SYSTEM
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/ceres
                              PRIVATE ${EIGEN3_INCLUDE_DIRS}
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/glog
                              PRIVATE ${OpenCV_INCLUDE_DIRS})
 
   set_property(TARGET calibration_${BACKEND_NAME} PROPERTY CXX_STANDARD 14)

lib/src/epipolar/CMakeLists.txt

@@ -18,10 +18,7 @@ function(configure_target BACKEND_NAME)
 
   target_include_directories(epipolar_${BACKEND_NAME}
                              SYSTEM
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/ceres
                              PRIVATE ${EIGEN3_INCLUDE_DIRS}
-                             PRIVATE ${CMAKE_EXTERNAL_DEPS}/include/glog
                              PRIVATE ${OpenCV_INCLUDE_DIRS})
 
   if (WINDOWS)