fix runtime libs (#8924)

CMakeLists.txt

@@ -22,6 +22,7 @@ option(VCPKG_USE_OPENCV2 "Use legacy OpenCV 2" OFF)
 option(VCPKG_USE_OPENCV3 "Use legacy OpenCV 3" OFF)
 option(VCPKG_USE_OPENCV4 "Use OpenCV 4" ON)
 option(USE_NSIS "Use NSIS as a CPack backend on Windows" ON)
+option(SKIP_INSTALL_RUNTIME_LIBS "Do not install runtime libs" OFF)
 
 if(DEFINED ENV{VCPKG_DEFAULT_TRIPLET})
   message(STATUS "Setting default vcpkg target triplet to $ENV{VCPKG_DEFAULT_TRIPLET}")
@@ -67,11 +68,7 @@ if(ENABLE_OPENCV)
   endif()
 endif()
 
-if(NOT CMAKE_HOST_SYSTEM_PROCESSOR AND NOT WIN32)
-  execute_process(COMMAND "uname" "-m" OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR OUTPUT_STRIP_TRAILING_WHITESPACE)
-endif()
-
-if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "x86")
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^x86" OR CMAKE_SYSTEM_PROCESSOR MATCHES "^AMD64")
   set(IS_X86 TRUE)
 else()
   set(IS_X86 FALSE)
@@ -672,13 +669,14 @@ if(ENABLE_CSHARP_WRAPPER)
   add_subdirectory(src/csharp)
 endif()
 
-set(CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS_SKIP TRUE)
-include(InstallRequiredSystemLibraries)
-
-install(
+if (NOT SKIP_INSTALL_RUNTIME_LIBS)
+  set(CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS_SKIP TRUE)
+  include(InstallRequiredSystemLibraries)
+  install(
     PROGRAMS ${CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS}
     DESTINATION ${INSTALL_BIN_DIR}
-)
+  )
+endif()
 
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/vcpkg.json)
   file(READ ${CMAKE_CURRENT_SOURCE_DIR}/vcpkg.json VCPKG_JSON_STRING)