<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m try to get a file via ftp in EXTERNAL_PROJECT_ADD by specifying the URL. This takes a long time on my Windows machine using CMake 3.10.1 (and previous versions of CMake) as it needs multiple retries:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Using src='ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5-dll64.zip'<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Retrying...<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Using src='ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5-dll64.zip'<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Retry after 5 seconds (attempt #2) ...<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Using src='ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5-dll64.zip'<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Retry after 5 seconds (attempt #3) ...<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Using src='ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5-dll64.zip'<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Retry after 15 seconds (attempt #4) ...<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Using src='ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5-dll64.zip'<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Retry after 60 seconds (attempt #5) ...<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'>2> -- Using src='ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5-dll64.zip'</span> <o:p></o:p></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'>-- [download 0% complete]<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'>...</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When using on https link, the download starts immediately. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any suggestions why this happens, what I can do about it, or how I could specify an initial sleep period to skip the first retries (but I’m not sure if that’d help)?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Some more detail:<o:p></o:p></p><p class=MsoNormal>I’m using Windows 10 home with latest CMake installed via the msi.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Using the URL in a browser (firefox) works fine but does need a ~5s wait before I get the “save” dialog box. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Checking the created download.cmake, it is just a loop with different sleep_seconds doing the following<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Set(url “ftp://ftp.fftw.org/pub/fftw/fftw-3.3.5-dll64.zip”)<o:p></o:p></p><p class=MsoNormal>execute_process(COMMAND "${CMAKE_COMMAND}" -E sleep "${sleep_seconds}")<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> file(<o:p></o:p></p><p class=MsoNormal> DOWNLOAD<o:p></o:p></p><p class=MsoNormal> "${url}" "C:/Users/krisf/Documents/devel/fftw-3.3.5-dll64.zip"<o:p></o:p></p><p class=MsoNormal> SHOW_PROGRESS<o:p></o:p></p><p class=MsoNormal> # no TIMEOUT<o:p></o:p></p><p class=MsoNormal> STATUS status<o:p></o:p></p><p class=MsoNormal> LOG log<o:p></o:p></p><p class=MsoNormal> )<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks for your help<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:black;mso-fareast-language:EN-GB'>Kris Thielemans<br>Reader in Medical Imaging Physics at University College London,<br>Institute of Nuclear Medicine, UCL Hospital, Tower 5,<br>235 Euston Road, London NW1 2BU, UK<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>