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cmake: additional messages on download errors

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This commit is contained in:
Alexander Alekhin 2017-06-21 19:04:27 +03:00
parent f0e3431bc7
commit d29c299cdb
1 changed files with 22 additions and 1 deletions
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23
cmake/OpenCVDownload.cmake
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@ -167,7 +167,28 @@ function(ocv_download)
set(${DL_STATUS} FALSE PARENT_SCOPE)
set(msg_level WARNING)
endif()
message(${msg_level} "${__msg_prefix}Download failed: ${status}")
if(status MATCHES "Couldn't resolve host name")
message(STATUS "
=======================================================================
Couldn't download files from the Internet.
Please check the Internet access on this host.
=======================================================================
")
elseif(status MATCHES "Couldn't connect to server")
message(STATUS "
=======================================================================
Couldn't connect to server from the Internet.
Perhaps direct connections are not allowed in the current network.
To use proxy please check/specify these environment variables:
- http_proxy/https_proxy
- and/or HTTP_PROXY/HTTPS_PROXY
=======================================================================
")
endif()
message(${msg_level} "${__msg_prefix}Download failed: ${status}
For details please refer to the download log file:
${OPENCV_DOWNLOAD_LOG}
")
return()
endif()