<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=Windows-1252"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> I have been building poppler on my CentOS 6 server by building a recent gcc, and then building poppler with -fabi-version=2 (to use an ABI compatible with CentOS 6 g++ 4.4.7) and -static-libstdc++ (so I don't have to install a new library). I also built static versions of some of the libraries that poppler uses, and sometimes I have to edit the CMakeFiles/*.dir/link.txt files to get a clean link. In the end, I get poppler utility executables that can run on stock CentOS 6 systems.</div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Theoretically any distribution that could still build a recent gcc could build poppler, although would a distribution with an old gcc (I think that -std=gnu++17 was added in gcc 9, released May 2019) push anything but bug fixes for packages?</div> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> William</div> <div> <div><br> </div> <div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0);"> <br> <hr tabindex="-1" style="display:inline-block; width:98%;"> <b>From:</b> poppler on behalf of Oliver Sander<br> <b>Sent:</b> Sunday, September 26, 2021 11:35 PM<br> <b>To:</b> poppler@lists.freedesktop.org<br> <b>Subject:</b> Re: [poppler] Increasing the C++ standard to C++17 <div><br> </div> </div> <div class="BodyFragment"><font size="2"><span style="font-size:11pt;"> <div class="PlainText">No objections besides the one mentioned by Leonard.<br> <br> It would also allow to replace Object by std::variant.<br> <br> Best,<br> Oliver<br> <br> On 27.09.21 00:10, Leonard Rosenthol wrote:<br> > The only downside is that it will prevent the use of Poppler on some Unix/Linux distros due to older GCCs being present…<br> > <br> > Leonard<br> > <br> > *From: *poppler <poppler-bounces@lists.freedesktop.org> on behalf of Albert Astals Cid <aacid@kde.org><br> > *Date: *Sunday, September 26, 2021 at 1:39 PM<br> > *To: *poppler@lists.freedesktop.org <poppler@lists.freedesktop.org><br> > *Subject: *[poppler] Increasing the C++ standard to C++17<br> > <br> > <a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fpoppler%2Fpoppler%2F-%2Fmerge_requests%2F941&data=04%7C01%7Clrosenth%40adobe.com%7Cc33a75763a164819582908d9811496d9%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637682747700153065%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=6nEff8jwrD2KwOnWhi6xsbI1tSb9YXsl%2F%2Fcu4YQciUE%3D&reserved=0" target="_blank" rel="noopener noreferrer" data-auth="NotApplicable"> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fpoppler%2Fpoppler%2F-%2Fmerge_requests%2F941&data=04%7C01%7Clrosenth%40adobe.com%7Cc33a75763a164819582908d9811496d9%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637682747700153065%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=6nEff8jwrD2KwOnWhi6xsbI1tSb9YXsl%2F%2Fcu4YQciUE%3D&reserved=0</a> <<a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fpoppler%2Fpoppler%2F-%2Fmerge_requests%2F941&data=04%7C01%7Clrosenth%40adobe.com%7Cc33a75763a164819582908d9811496d9%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637682747700153065%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=6nEff8jwrD2KwOnWhi6xsbI1tSb9YXsl%2F%2Fcu4YQciUE%3D&reserved=0" target="_blank" rel="noopener noreferrer" data-auth="NotApplicable">https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fpoppler%2Fpoppler%2F-%2Fmerge_requests%2F941&data=04%7C01%7Clrosenth%40adobe.com%7Cc33a75763a164819582908d9811496d9%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637682747700153065%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=6nEff8jwrD2KwOnWhi6xsbI1tSb9YXsl%2F%2Fcu4YQciUE%3D&reserved=0</a>><br> > <br> > Anyone against it?<br> > <br> > It would allow us to use std::optional which would allow us to change things like<br> > <br> > std::unique_ptr<GooString> readMetadata();<br> > <br> > to<br> > <br> > std::optional<std::string> readMetadata();<br> > <br> > where you can differentiate between "no metadata" and "empty metadata" without having to use a pointer.<br> > <br> > Seems better API to me.<br> > <br> > All the things in the gitlab CI built fine and I don't think the mac/windows builders would be a problem to get the increased C++ standard.<br> > <br> > Cheers,<br> > Albert<br> > <br> <br> </div> </span></font></div> </div> </body> </html>