<jmd>Zlib is almost impossible to cross compile because they refuse to use autoconf. Instead they have "rolled their own". <jmd>I wonder if it is worth making a patch which adds a suitable configure.ac ? <jmd>I have the situation where makeinfo crashes during guix build ... -K <jmd>however, if I run make from the resulting /tmp/nix-build-... directory (with the generated environment) it works fine. <jmd>It's not very interesting. *civodul has never seen makeinfo crash <civodul>well, just to understand the context etc. <jmd>../../run-octave -f -q -H ./mk_doc_cache.m doc-cache ../../scripts/DOCSTRINGS ../../src/DOCSTRINGS || { rm -f doc-cache; exit 1; } <jmd>warning: no graphical display found <jmd>error: makeinfo failed with exit status 127! <jmd>error: /tmp/nix-build-octave-3.6.4.drv-0/octave-3.6.4/doc/interpreter/mk_doc_cache.m at line 70, column 3 <jmd>Makefile:2832: recipe for target 'doc-cache' failed <civodul>ok, so it's not a "crash" in the sense of segfault or anything <jmd> error: makeinfo failed with exit status 127! <jmd>This implies a crash. <jmd>Well anyway it fails. <jmd>I can show you the relevant line. <jmd>cmd = [makeinfo_program() " --verbose --no-headers --no-warn --force --no-validate --fill-column=1024 " name]; <jmd>[status, formatted_text] = system (cmd); <jmd>printf ("Formatted text is %s\\n", formatted_text); <jmd>## Did we get the help text? <jmd> error ("makeinfo failed with exit status %d!", status); <civodul>what does makeinfo_program() return? <jmd>(That printf line I put there for debug) <civodul>i bet it's /usr/bin/makeinfo or some such <jmd>Oh. You could be right. <jmd>But then why does it work when I run it manually? <civodul>jmd: because you're outside a chroot, and there is /usr/bin/makeinfo <civodul>if that was after a build failure, you were outside of the chroot <jmd>I did cd /tmp/nix-buildXXXX ; source environment-variables <civodul>(inside the build tree, but outside the chroot) <civodul>IOW, /usr/bin was accessible to you, whereas it's not in the chroot <jmd>Oh wait. You are right. <jmd>Although looking at the source, it seems to be defined as just "makeinfo" . <jmd>I'll add a few more diagnostics. <civodul>check whether $texinfo/bin is in the $PATH in 'environment-variables' <jmd>makeinfo_program returns simply "makeinfo" <civodul>can you check whether $texinfo/bin is in the $PATH in 'environment-variables'? <jmd>/tmp/nix-build-octave-3.6.4.drv-0/octave-3.6.4$ /usr/bin/which makeinfo <jmd>/nix/store/p168gj2y13b0c02wrxi22di8vz5zxjzw-texinfo-4.13a/bin/makeinfo <civodul>ok, and then does it use execlp(3)? something else? <civodul>perhaps you can try to "strace -f" the thing, and look what gets run <civodul>that's how i usually debug this kind of problem :-) <jmd>It seems to be using execve <jmd>execve("/nix/store/p168gj2y13b0c02wrxi22di8vz5zxjzw-texinfo-4.13a/bin/makeinfo", ["makeinfo", "--verbose", "--no-headers", "--no-warn", <jmd>"--force", "--no-validate", "--fill-column=1024", "octave_doc_D20Nsd"], [/* 42 vars */]) = 0 <civodul>could you post the complete output of "strace -f"? <jmd>From the successful run? <jmd>pastebin.ca seems to be broken. <civodul>with 'environment-variables' sourced <jmd>Ugg. There's no option to upload. I have to paste. <jmd>paste.lisp.org is also broken! <jmd>Or doesn't like big pastes... <jmd>civodul: If you want to send me your public ssh key, I can give you a login on the machine where it is. <jmd>No idea where it goes. <civodul>could you try "strace -f -o log the command"? <civodul>hmm, why is there no pid in the first column? <civodul>anyway, here 'makeinfo' just seems to exit successfully <civodul>could it be that it's some other process that fails? <jmd>Yes. This is the successfull run. <jmd>Oh yes. -o prints the pid before each line. <civodul>i was thinking of "strace -f -o log make thing-that-fails" <jmd>Well thats the annoying thing. It works when I run it manually. Only guix build fails <jmd>So far as I can see, the -o version is no more enlightening. Do you want it? *jmd Starts on his second drink for the evening, and is therefore absolved from all responsibility of his actions, henceforth. <a_e>mark_weaver: Hi Mark, did you try to compile qt-4.8.5 on mips? It fails for me. <a_e>Okay. Then I should maybe send a bug report. <a_e>You mean, you also tried it outside of guix? <mark_weaver>the qt-5.1.1 build failed because the assembler didn't like the syntax of an asm instruction it was given. <a_e>The 4.8.5 one looks less dramatic, it fails with <a_e>error: invalid conversion from 'const void*' to 'void* <a_e>Which does not look specific to mips, strangely. <a_e>civodul: I suppose updating bison and binutils should be done in core-updates? <Steap>What's the difference between #:import and #:imported-modules ? <a_e>Is there a command that shows which packages depend, directly or indirectly, on a given package? ***schjetne_ is now known as schjetne
<civodul>a_e: so, binutils in core-updates, and bison in master <civodul>Steap: #:modules says which modules should be visible, and #:imported-modules says which ones should be imported in the build env <civodul>for instance, (ice-9 ftw) is part of Guile itself <civodul>so if you want to use it, you add it to #:modules <civodul>but you don't need to add it to #:imported-modules, because it's already in the chroot env. <civodul>jmd: it's OK to get the "strace -f -o log" output for the succeeding command, because it allows us to check if it uses commands from /usr, for instance <jmd>I have grepped for it. So far as I can see, it does not. <jmd>The only reference to / I see is: 6980 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) <jmd>Could there be a /etc/ld.so.preload in the chroot ? <jxself>The software to encode WebM video. <jxself>Yep, Flash really isn't needed for YouTube anymore. I once read somewhere that Google has said that 80% of the stuff was available as WebM. <jmd>But you still need flash to view it. <jxself>Not really. I can see that video just fine without Flash. The whole point is that browsers like GNU IceCat have built-in support for the <audio> and <video> tags. <a_e>It works on the icecat in guix! <jxself>Practically everyone supports WebM out of the box, except for Internet Explorer & Safari (not surprisingly) but even those can do it with a plugin. <jmd>Maybe it has changed recently. I remember reading somewhere on fsf.org that nothing on youtube could be viewed with free software. <jxself>Is that what you're thinking of? <jxself>And they also had their open letter to Google. <Steap>There are lots of youtube videos that still require Flash <jmd>But you still need non-free javascript ? <jxself>steap: Not in my experience, unless you're talking of the rentals? Those may because of DRM? <jxself>jmd: It does seem so. It's good to have things like VLC & Totem where you can paste the URL into the Open dialog box. <Steap>jxself: I'm talking about normal youtube videos <jxself>That's sad. Offhand I can't recall any video that wasn't available as WebM. <jxself>Not in HD though, but still there. <jxself>I've yet to find one that isn't. :) <Steap>oh yeah, I can youtube-dl it <Steap>but it won't read inside my browser <jxself>And it's in a free format too - called Webm :) <jxself>Take a look at that output showing available formats :) <Steap>Instead of automatically switching to WebM, youtube just asks me to install Flash Player <jxself>Not sure about that - I think there's a browser add-on available that lets you select other formats to play. <Steap>jxself: it does not solve the problem for real end users <Steap>It's still easier for them to just install Flash <jxself>steap: I'm watching that video though right now, without Flash, and in my browser. Trisquel can automatically play them. <jxself>Reason # 724 to use free software ;) <Steap>jxself: that's fun, I wonder why Firefox does not do that <a_e>Steap: Try icecat from guix! <Steap>a_e: isn't ti just Firefox rebranded and without JS ? :p <a_e>And several add-ons; actually I disabled the check for non-free javascript, as it was too restrictive. <a_e>But I like RequestPolicy a lot. It prevents downloads from third party sites unless explicitly told so. <Steap>oh ok, so it's one of the addons that does that <Steap>a_e: does it include a well-configured adblock too ? <jxself>steap: I don't know but I have yet to find one I cannot play. ;) <a_e>No, but you can add it. And RequestPolicy already blocks a lot (google analytics and so on). <Steap>jxself: you do realize I use a free browser, right ? :p <Steap>a_e: I'm willing to block all the "share" buttons <Steap>Adblock seemed quite complex to properly configure :/ <a_e>It works quite well out of the box for me. <Steap>It's a Firefox extension that shows what websites you visit when visiting a given website <Steap>so for instance, let's say you go to foobar.com <a_e>What do you mean? All the websites from which you download something? <Steap>if it has "share" buttons, the extension will show you that reaching foobar.com forced you to reach facebook and twitter <Steap>if there are ads, it will show you that google ads knows you went to foobar.com <a_e>Okay. RequestPolicy is better: It blocks all these third-party resources. <a_e>And for each site, you can configure with a few clicks that you allow some of them. <Steap>Isn't that an issue sometimes ? <a_e>For instance, www.lemonde.fr does not show much. <a_e>But in the right corner of the icecat window, there is a red flag. <a_e>When you click on it, it shows that the site wants to download from lemde.fr and viamichelin.com. <a_e>lemde.fr looks reasonable. So you temporarily enable it for the session. <a_e>It reloads the page; now you have pictures and pretty css. <a_e>So next time, you can enable lemde.fr permanently (with an option to go back any time you want). <a_e>Just try our icecat! <Steap>But I think for most users, it'd be best to just blacklist ads OR social crap OR ... <a_e>Blacklisting everything is clearer. How do you decide what to show on lemonde.fr? <a_e>Let the user decide! <Steap>a_e: most users won't have such patience :) <a_e>It is so easy and convenient that you do not need patience. <Steap>so, telling them "hey, we can disable ads" is an easy way to give them more freedom <a_e>And to just get rid of ads, use Adblock plus. <Steap>a_e: tell that to your mom and dad, see their reaction :) <Steap>It'sa ctually called the "dad test" or something like that <a_e>I installed Adblock plus for my family, indeed. <Steap>which is "easier" than RequestPolicy <Steap>I'll have to try both in a clean profile <Steap>and see which one is more convenient/efficient <a_e>Yes, agreed, Adblockplus is easier. But RequestPolicy is also easy and filters out more. And then both can coincide. <viric>Steap: what is "a mon viens si viens"? <Steap>viric: where do you find these ? :p 