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Diffstat (limited to 'doc/bugs/2.45_Compilation_error.mdwn')
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diff --git a/doc/bugs/2.45_Compilation_error.mdwn b/doc/bugs/2.45_Compilation_error.mdwn new file mode 100644 index 000000000..63147b656 --- /dev/null +++ b/doc/bugs/2.45_Compilation_error.mdwn @@ -0,0 +1,198 @@ +I have perl 5.10.0. Ikiwiki 2.44 compiles fine. Compiling 2.45 fails after 'make': + + perl -Iblib/lib ikiwiki.out -libdir . -setup docwiki.setup -refresh + refreshing wiki.. + docwiki.setup: Failed to load plugin IkiWiki::Plugin::goodstuff: Failed to load plugin IkiWiki::Plugin::shortcut: Too many arguments for IkiWiki::srcfile at IkiWiki/Plugin/shortcut.pm line 16, near "1)" + Compilation failed in require at (eval 31) line 2. + BEGIN failed--compilation aborted at (eval 31) line 2. + BEGIN failed--compilation aborted at (eval 23) line 2. + BEGIN failed--compilation aborted at (eval 10) line 21. + make: *** [extra_build] Error 255 + +> I can't reproduce this. It looks like your IkiWiki.pm is out of sync with +> your IkiWiki/Plugin/shortcut.pm. The ones distributed in 2.45 are in +> sync. Or your perl is failing to use the right version of Ikiwiki.pm, +> perhaps using a previously installed version. But the -Iblib/lib +> instructs perl to look in that directory first, and the Makefile +> puts Ikiwiki.pm there. --[[Joey]] + +>> I removed all traces of the previous installation, and now 2.45 compiles. +>> I don't know why it was picking up the old version of Ikiwiki.pm, but now it +>> works. Please close this bug, and thanks for the help. + +>>> Where were the files from the old installation? I still don't +>>> understand why they would be seen, since -Iblib/lib is passed to perl. +>>> --[[Joey]] + +>>>> They were under /usr/local/{bin,lib,share}. I can try to provide more info, +>>>> or try to reproduce it, if you need me to. + +>>>>> Well, here are some things to try. + + perl -Iblib/lib -V + +>>>>> This should have blib/lib first in the listed @INC + + joey@kodama:~/src/ikiwiki>strace perl -Iblib/lib -e 'use IkiWiki' 2>&1 |grep IkiWiki.pm + stat64("blib/lib/IkiWiki.pmc", 0xbfa1594c) = -1 ENOENT (No such file or directory) + stat64("blib/lib/IkiWiki.pm", {st_mode=S_IFREG|0444, st_size=31982, ...}) = 0 + open("blib/lib/IkiWiki.pm", O_RDONLY|O_LARGEFILE) = 5 + +>>>>> This is how perl finds IkiWiki.pm here. Note that I've run "make" first. + +OK, this is what I'm getting: + + $ perl -Iblib/lib -V + @INC: + blib/lib + /usr/lib/perl5/site_perl/5.10.0 + /usr/share/perl5/site_perl/5.10.0 + /usr/lib/perl5/vendor_perl + /usr/share/perl5/vendor_perl + /usr/share/perl5/vendor_perl + /usr/lib/perl5/core_perl + /usr/share/perl5/core_perl + /usr/lib/perl5/current + /usr/lib/perl5/site_perl/current + +I ran the following in my current 2.45 source dir, where the `make` already succeded. If you need it, I can post the output +in the case where `make` fails. + + $ strace perl -Iblib/lib -e 'use IkiWiki' 2>&1 |grep IkiWiki.pm + stat64("blib/lib/IkiWiki.pmc", 0xbfa6167c) = -1 ENOENT (No such file or directory) + stat64("blib/lib/IkiWiki.pm", {st_mode=S_IFREG|0444, st_size=31901, ...}) = 0 + open("blib/lib/IkiWiki.pm", O_RDONLY|O_LARGEFILE) = 3 + +> I need to see it in the case where it's failing. --[[Joey]] + +I finally had some time to look into this again. + +I wiped ikiwiki off my system, and then installed version 2.41. I tried installing +2.46 and get the same error as above, so I'll be using 2.46 below. (BTW, the debian +page still lists 2.45 as current; I had to fiddle with the download link to get 2.46). + +After running `./Makefile.PL` I get: + + $ perl -Iblib/lib -V + [bunch of lines snipped] + @INC: + blib/lib + [bunch of paths snipped] + +Running the strace: + + $ strace perl -Iblib/lib -e 'use IkiWiki' 2>&1 |grep IkiWiki.pm + +I get a bunch of ENOENTs and then at the end: + + stat64("./IkiWiki.pmc", 0xbfa2fe5c) = -1 ENOENT (No such file or directory) + stat64("./IkiWiki.pm", {st_mode=S_IFREG|0644, st_size=31987, ...}) = 0 + open("./IkiWiki.pm", O_RDONLY|O_LARGEFILE) = 3 + +After running `make` (and having it fail as described above): + + $ strace perl -Iblib/lib -e 'use IkiWiki' 2>&1 |grep IkiWiki.pm + stat64("blib/lib/IkiWiki.pmc", 0xbfd7999c) = -1 ENOENT (No such file or directory) + stat64("blib/lib/IkiWiki.pm", {st_mode=S_IFREG|0444, st_size=31901, ...}) = 0 + open("blib/lib/IkiWiki.pm", O_RDONLY|O_LARGEFILE) = 3 + +I don't know what is going on, but I'll run any more tests you need me to. + +> No help. +> The only further thing I can think to try is `strace -f` the entire failing +> `make` run (or the ikiwiki command that's failing in it, if you can +> reproduce the failure at the command line). --[[Joey]] + +I have 2.46 installed and I can reproduce the bug reported against 2.49. The command that fails is: + + $ /usr/bin/perl -Iblib/lib ikiwiki.out -libdir . -setup docwiki.setup -refresh + docwiki.setup: Failed to load plugin IkiWiki::Plugin::inline: Too many arguments for IkiWiki::htmlize at IkiWiki/Plugin/inline.pm line 359, near "))" + Compilation failed in require at (eval 14) line 2. + BEGIN failed--compilation aborted at (eval 14) line 2. + BEGIN failed--compilation aborted at (eval 10) line 21. + +strace -f produces a 112K file. I don't know enough to be comfortable analyzing it. +However, lines like: + + stat64("/usr/local/share/perl5/site_perl/5.10.0/IkiWiki.pm", {st_mode=S_IFREG|0444, st_size=31982, ...}) = 0 + +make me think the make process is not completely independent of a previous +installation. Joey, should I email you the strace log file? + +> Email it (joey@ikiwiki.info), or post it to a website somewhere. +> --[[Joey]] + +> The relevant part of the file is: + + execve("/usr/bin/perl", ["/usr/bin/perl", "-Iblib/lib", "ikiwiki.out", "-libdir", ".", "-setup", "docwiki.setup", "-refresh"], [/* 55 vars */]) = 0 + [...] + stat64("blib/lib/5.10.0/i686-linux-thread-multi", 0xbfa72240) = -1 ENOENT (No such file or directory) + stat64("blib/lib/5.10.0", 0xbfa72240) = -1 ENOENT (No such file or directory) + stat64("blib/lib/i686-linux-thread-multi", 0xbfa72240) = -1 ENOENT (No such file or directory) + [...] + stat64("/usr/local/share/perl5/site_perl/5.10.0/IkiWiki.pmc", 0xbfa71e5c) = -1 ENOENT (No such file or directory) + stat64("/usr/local/share/perl5/site_perl/5.10.0/IkiWiki.pm", {st_mode=S_IFREG|0444, st_size=31982, ...}) = 0 + open("/usr/local/share/perl5/site_perl/5.10.0/IkiWiki.pm", O_RDONLY|O_LARGEFILE) = 4 + +> So it doesn't look for IkiWiki.pm in blib at all. But it clearly has been asked to look in blib, since it +> looks for the 3 directories in it. When I run the same thing locally, I get: + + execve("/usr/bin/perl", ["/usr/bin/perl", "-Iblib/lib", "ikiwiki.out", "-libdir", ".", "-setup", "docwiki.setup", "-refresh"], [/* 55 vars */]) = 0 + [...] + stat64("blib/lib/5.10.0/i486-linux-gnu-thread-multi", 0xbf84f320) = -1 ENOENT (No such file or directory) + stat64("blib/lib/5.10.0", 0xbf84f320) = -1 ENOENT (No such file or directory) + stat64("blib/lib/i486-linux-gnu-thread-multi", 0xbf84f320) = -1 ENOENT (No such file or directory) + [...] + stat64("blib/lib/IkiWiki.pmc", 0xbf84ef4c) = -1 ENOENT (No such file or directory) + stat64("blib/lib/IkiWiki.pm", {st_mode=S_IFREG|0444, st_size=32204, ...}) = 0 + open("blib/lib/IkiWiki.pm", O_RDONLY|O_LARGEFILE) = 6 + +> The thing I really don't understand is why, on the system where perl fails +> to look in blib when straced as above, we've already established it *does* +> look for it when `perl -Iblib/lib -e 'use IkiWiki'` is straced. +> +> The only differences between the two calls to perl seem to be: +> * One runs `perl`, and the other `/usr/bin/perl` -- are these really +> the same program? Does `perl -lblib/lib ikiwiki.out -libdir . -setup docwiki.setup -refresh` +> fail the same way as the `/usr/bin/perl` variant? +> * The `-libdir .`, which causes ikiwiki to modify `@INC`, adding "." to +> the front of it. +> +> I'm entirely at a loss as to why I cannot reproduce this with the same +> versions of perl and ikiwiki as the two people who reported it. There must +> be something unusual about your systems that we have not figured out yet. --[[Joey]] + +Joey, thanks for your time and effort looking into this. + +I checked with `which`: `perl` is indeed `/usr/bin/perl`. The commands fail similarly when +calling `perl` and `/usr/bin/perl`. + +However, you might be into something with your `libdir` idea. If I remove it from the +command line, the command succeeds. In other words, if I run + + perl -Iblib/lib ikiwiki.out -setup docwiki.setup -refresh + +then it works perfectly. + +> Well, that's just weird, because `libdir` is handled by code in IkiWiki.pm. +> So I don't see how setting it could affect its searching for IkiWiki.pm at all, +> actually. It could only affect its searching for files loaded later. Anyway, +> can I get a strace of it succeeding this way? +> +> Also, can you show me the first 15 lines of your `ikiwiki.out`? It's occurred to me +> you might have an unusual `use lib` line in it. + +By the way, I'm running Arch linux. The perl build script is a bit long, but I +see they install a patch to modify @INC: <http://repos.archlinux.org/viewvc.cgi/perl/repos/core-i686/perl-5.10.0-archlinux-inc-order.patch?revision=1&view=markup> + +Would you suggest I try rebuilding perl without this patch? Debian has a huge perl patch (102K!); +it's not straightforward for me to see if they do something similar to Arch. + +> I think Debian has a similar patch. + +--- + +[[done]] -- apparently this was a problem due to a distribution's +customisation to perl, or something. Seems to late now to track down what, +unfortunatly. And ikiwiki's Makefile no longer uses the "-libdir" switch +that seemed to trigger the bug. --[[Joey]] |