--- Log opened Wed Jan 26 00:00:05 2011
00:00 < niemeyer> jnwhiteh: Aha, ok
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00:00 < niemeyer> jnwhiteh: What kind of symbol?
00:00 < jnwhiteh> http://paste.pocoo.org/show/326939/ is the results of
compilation and http://paste.pocoo.org/show/326915/ is the test program in
question
00:00 < niemeyer> jnwhiteh: Hmmmm
00:01 < niemeyer> jnwhiteh: What Lua version are you using?
00:01 < jnwhiteh> that's stock 5.1.4, freshly downloaded and in the repo =)
00:02 < jnwhiteh> https://github.com/jnwhiteh/cgo-lua-test is what I'm
working on
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00:05 < niemeyer> Ok, yeah, let me check that out
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00:21 < uriel> 23:50 < KBme> seemed logical that it would only work
with gccgo but ah well, my logic is probably flawed
00:22 < uriel> KBme: it is flawed, gccgo doesn't need and can't use cgo
(AFAIK)
00:23 < uriel> jnwhiteh: do you have problems building other bindings?
00:23 < jnwhiteh> uriel: I've never tried, to be honest
00:23 < jnwhiteh> I can try to build the stdio bindings real quick, one sec
00:24 < jnwhiteh> the stdio/hello example works properly
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00:25 < uriel> ok, that is good to know then
00:25 < niemeyer> jnwhiteh: I see..
00:26 < niemeyer> jnwhiteh: Yeah, that's not going to work like that
00:26 < jnwhiteh> can you point me in the right direction?  =)
00:27 < jnwhiteh> then I can avoid mailing the entire list for what is (as
expected) my mistake :P
00:27 < niemeyer> jnwhiteh: Yes, you can link against the shared library, or
you can include the raw .o files so that they get packed together
00:27 < jnwhiteh> I've done both of those
00:28 < jnwhiteh> one sec and I'll show you
00:28 < niemeyer> make[1]: Leaving directory
`/home/niemeyer/src/tmp/cgo-lua-test/lua-5.1.4'
00:28 < niemeyer> cp _obj/golua.a
"/home/niemeyer/src/go/pkg/linux_amd64/golua.a"
00:28 < niemeyer> 6g basic.go
00:28 < niemeyer> 6l -o basic basic.6
00:30 < jnwhiteh> niemeyer: http://paste.pocoo.org/show/326949/
00:30 < niemeyer> jnwhiteh: See above
00:30 < jnwhiteh> you can see there that I'm linking against the individual
.o
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00:32 < jnwhiteh> niemeyer: I get the same issue regardless of what I do
00:32 < jnwhiteh> so I'm clearly missing something =)
00:34 < niemeyer> Hmm
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00:36 < jnwhiteh> niemeyer: I've tried to link against -llua, the .o files
themselves and ensured that the package was being installed after each time.  What
changes did you end up making that let it build?
00:38 < niemeyer> jnwhiteh: I just built it as usual for linking with a
shared library
00:38 < jnwhiteh> which is how?  =)
00:38 < niemeyer> jnwhiteh: CGO_LDFLAGS=-llua5.1
00:39 < niemeyer> jnwhiteh: and -lm
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00:40 < jnwhiteh> perhaps it has something to do with the way lua has been
installed on my system
00:40 < jnwhiteh> let me check that out quick
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00:43 < jnwhiteh> so I removed Lua from my system (it was installed using
homebrew).  I then compiled Lua from clean source, and installed it to /usr/local.
I've then built the library using make install and tried to manually 6g/6l
basic.go/6 and I'm getting the same results.
00:43 < jnwhiteh> It's odd that you encountered the same problem but then
were able to fix it
00:45 < niemeyer> jnwhiteh: Still investigating here..  I think there is
something catchy there
00:45 < niemeyer> jnwhiteh: The static linking isn't working as I'd expect
either
00:46 < jnwhiteh> testing on a mac as well or experiencing the issue
elsewhere?
00:46 < jnwhiteh> I previously had issues with Homebrew stripping symbols
from the libraries, but that got fixed when we got luarocks installing alongside
it
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00:47 < niemeyer> jnwhiteh: No, Linux
00:47 < jnwhiteh> ah, okay
00:47 < jnwhiteh> they both use the same defines at the toplevel in 5.1.4,
so that should be fine
00:48 < niemeyer> jnwhiteh: Ah, man..
00:48 < niemeyer> DUh
00:48 < niemeyer> Let me confirm something
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00:54 < niemeyer> jnwhiteh: Nope..  recompiled lua with proper flags (-fPIC,
etc)..  no game still
00:55 < krakensden> hey, I've been trying to compile of C library wrappers,
and I have the same problem with each of them.  8g makes a _cgo_defun.c file it
can't compile, most of the errors look like so: 'function args not checked:
cgocall'
00:55 < jnwhiteh> Blah, okay.  I've posted to the mailing list, perhaps
someone there will see what I can't
00:57 < niemeyer> jnwhiteh: Yeah, I'll have to dig in into the compiler to
see what's up
00:57 < niemeyer> jnwhiteh: Russ will know for sure, either way
00:57 < jnwhiteh> no problem.  I'm always here so feel free to ping me and
I'll get back to you in the morning..  or respond to the email thread I suppose so
the whole world can see =)
00:58 < jnwhiteh>
http://groups.google.com/group/golang-nuts/browse_thread/thread/c535d0118e4c2322
00:58 < jnwhiteh> and thank you for your help!
00:59 < niemeyer> jnwhiteh: No problem, sorry I couldn't solve the actual
issue
01:00 < niemeyer> yet :-)
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01:02 < niemeyer> jnwhiteh: Btw, I think the email you sent will likely
yield a more trivial answer
01:02 < niemeyer> jnwhiteh: You're building a .o using a static library..
the symbol simply won't be there
01:03 < niemeyer> jnwhiteh: If you open up golua.a, there will be no trace
of liblua
01:03 < niemeyer> jnwhiteh: The more interesting case is why including the
objects themselves crash with undefined symbols, even though they *are* there
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03:39 < moderation> Newbie question - I have an int64 slice comprised of
approx 200 Twitter 'friend' Id values.  Is there a way similar to strings.Index or
bytes.Index for me to lookup the slice to find specific Id's?
03:43 < Ina> Trying ./all.bash on windows now.  :)
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04:18 < anticw> moderation: no, use a map if you need that bahavior
04:18 < anticw> Ina: does cross-compilation work for that?
04:20 < Ina> anticw, right now, it's not working at all, go itself compiled,
but mingw is giving me build errors for the pkg part
04:21 < moderation> anticw: makes sense re: maps.  Thanks
04:21 < anticw> Ina: i guess ./make.bash is what i mean anyhow
04:22 < anticw> all does tests which won't work when crossed
04:22 < anticw> Ina: what arch?
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04:25 < anticw> Ina: i tried here and it's pulling in unistd.h ...  that
seems odd
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04:25 < Ina> anticw, 386
04:32 < anticw> Ina: what local changes do you have there?
04:33 < Ina> As of yet, trying for a plain install using mingw
04:33 < anticw> oh, this is windows on windows?
04:33 < anticw> not a cross?
04:33 < Ina> yeah
04:35 < Ina> It's runtime\windows\386\sys.s that seems to be failing, syntax
errors
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04:38 < Ina> aha, a google search suggests this is related to gawk.
Apparently you need nawk to build this thing on windows.
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04:40 < Ina> replaced gawk with nawk, retrying
04:41 < Ina> the adventures of trying to build go on windows.  :)
04:44 < anticw> ok, i got a cross mostly built
04:44 < anticw> won't run though
04:44 < anticw> i had to stub some things out in ugly ways
04:44 < anticw> but every encouraging it's close
04:44 < anticw> Ina: do you have a windos.h that was autogenerated?
04:46 < Ina> anticw, where should it be located?
04:46 < anticw> im not sure if it's generated or expected to be supplied
04:46 < anticw> do you have find from cygwin?
04:47 < Ina> No, I'm running MSYS/MinGW, not cygwin
04:48 < anticw> mingw probably has windows.h
04:48 < Ina> Should probably have it, yes.
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04:49 < Ina> But I'm getting the exact same error someone else did, and that
one was apparently an awk error.
04:50 < anticw> LocalAlloc is a macro?
04:51 < anticw> wow.  it built entirely with very little stubbed out
04:52 < anticw> that's quite impressive, if i will in those gaps i wonder if
it would even work
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05:06 < plexdev> http://is.gd/uGXCiU by [Andrew Gerrand] in 2 subdirs of go/
-- doc/codelab/wiki: update to work with template changes, add to run.bash
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07:39 < plexdev> http://is.gd/Z109Gt by [Andrew Gerrand] in
go/doc/codelab/wiki/ -- doc/codelab/wiki: rename textarea name from Body to body
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10:59 < CrazyThinker> Hi
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11:48 < jnwhiteh> niemeyer_biab: I'm not trying to be difficult, I just
honestly am trying to put together all the pieces.  This is the problem with doing
a PhD..  all you do while you're researching is losing your broader skill-set =)
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11:58 < jnwhiteh> niemeyer_biab: responded via email, but I'm around here as
well now.
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13:42 < plexdev> http://is.gd/TENCLj by [Russ Cox] in 4 subdirs of
go/src/pkg/runtime/ -- runtime: remove tiny
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13:46 < niemeyer> jnwhiteh: Please see the last reply
13:46 < niemeyer> jnwhiteh: Just patch Go for now..  I'll propose a proper
fix for this once I have a moment
13:47 < niemeyer> jnwhiteh: Which may even be the patch I sent you by
itself, but I need to think more about the consequences of applying it
13:47 < jnwhiteh> okay, I'll check it out.
13:47 < niemeyer> jnwhiteh: Either way, it won't be a problem for you..  it
may just be allowing linkage with things which it shouldn't, which won't be an
issue in your case.
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14:02 < jnwhiteh> niemeyer: I've reverted my changes to luaconf.h and
applied the patch to src/cmd/ld.  I've recompiled the entire source tree and
confirmed that I'm using the 6l I just compiled, and I continue to get the
"unexpected GOT reloc for non-dynamic symbol luaO_nilobject_" error.
14:02 < niemeyer> jnwhiteh: Have you run make clean within your project?
14:03 < niemeyer> jnwhiteh: and also rebuilt the lua library with the new
flags?
14:08 < jnwhiteh> yes, I've done a make pristine (restores to github state)
and then run make on the cgo library, which is building the Lua source itself due
to CGO_OFILES
14:09 < jnwhiteh> http://paste.pocoo.org/show/327192/
14:10 < jnwhiteh> http://paste.pocoo.org/show/rqej4lvwwDQ4fWQyWr1B/ has the
same without my mid-stream input
14:11 < niemeyer> jnwhiteh: Ok, please push your changes
14:11 < jnwhiteh> they're already pushed
14:11 < niemeyer> jnwhiteh: Thanks, checking
14:11 < jnwhiteh> it was just the revert of the luaconf.h changes
14:13 < jnwhiteh> on another note, the test dial for google is failing when
building the source tree, which is sad and unfortunate =)
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14:32 < niemeyer> jnwhiteh: Your branch works for me..  git clone + make +
make basic
14:32 < jnwhiteh> hrm
14:34 < jnwhiteh> it still doesn't for me.  Is it due to the difference in
platform?  I know these GOT reloc statements are in a few different branches based
on the commits from mid-december
14:34 < jnwhiteh> There was a more recent one relating to Mach
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14:38 < jnwhiteh>
http://groups.google.com/group/golang-checkins/browse_thread/thread/3d81450113d77090
is the thread I'm thinking of, but I'm not terribly familiar with the
compiler/linker
14:39 < niemeyer> jnwhiteh: Not sure..  the change introduced in ld is
common
14:40 < niemeyer> Off for lunch..  back soon
14:40 < jnwhiteh> yep, links just fine on my fedora/intel machine
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14:42 < jnwhiteh> Interesting that is fails to link on one platform and
works fine on the other.
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14:43 < KBme> uriel: typo on this page:
http://go-lang.cat-v.org/text-editors/gedit/
14:44 < KBme> Download: [go-al.lang)(go-al.lang)
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14:58 < niemeyer> jnwhiteh: Could be the flags from luaconf.h
14:59 < niemeyer> jnwhiteh: Try preprocessing it on both platforms to see
what is really happening there
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15:08 < gmilleramilar> ls
15:09 < niemeyer> file not found
15:09 < gmilleramilar> man this system is slow
15:10 < mpl> No manual entry for this system is slow
15:12 < niemeyer> ROTFL
15:13 < mpl> ;)
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15:15 < plexdev> http://is.gd/4aSA3o by [Brad Fitzpatrick] in
go/src/pkg/encoding/line/ -- encoding/line: make it an io.Reader too
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15:24 < uriel> KBme: thanks, fixed
15:25 < jnwhiteh> niemeyer: I'm not sure I know how to do that and in both
cases I'm using the posix target, so the only conditional stuff should be the GCC
stuff with LUAI_FUNC and LUAI_DATA (that's all I see in luaconf.h)
15:26 < niemeyer> jnwhiteh: gcc -E
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15:29 < jnwhiteh> I don't see anything jumping out at me either way
http://paste.pocoo.org/show/jBF9VdN2R3H6baJLjlc6/ and
http://paste.pocoo.org/show/ssyT63z4776tQzkPNaBU/
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15:30 < TheSeeker> go fukung http://fuk.ly/5Be
15:33 < niemeyer> jnwhiteh: Reading
15:35 < niemeyer> jnwhiteh: Uh, it's completely empty?
15:35 < jnwhiteh> that's the output of gcc -E luaconf.h
15:40 < niemeyer> jnwhiteh: Hmm, yeah, that actually makes sense..  we're
just not able to see the definitions..
15:40 < niemeyer> jnwhiteh: Try gcc -E -dM
15:41 < niemeyer> jnwhiteh: Try gcc -E -dM luaconf.h | grep LUAI
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15:43 < jnwhiteh> if we're looking at DATA and FLAGS, on the linux machine
LUAI_FUNC is set to __attribute__(visibility("hidden"))) extern, whereas on the
mac machine they are both extern
15:44 < jnwhiteh> so its the missing __ELF__ define that's causing the issue
15:44 < jnwhiteh> or at least, that's whats causing that attribute to not be
set when compiling on macos
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15:50 < jnwhiteh> and those are the only differences on all LUAI macros
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16:11 < jnwhiteh> gah, connection issues are no fun.  I missed anything you
said since I last responses (which may have been nothing)
16:11 < Namegduf> Wasn't anything.
16:11 < jnwhiteh> thanks =)
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16:12 < niemeyer> jnwhiteh: Yeah, no nick mentioned no highlighting :)
16:13 < niemeyer> jnwhiteh: Yes, that may be related to the problem
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16:13 < jnwhiteh> the main difference I see between the two of these is that
one is MachO and one is Elf..  but I run into a brick wall of knowledge there =)
16:13 < aiju> wow
16:13 < aiju> what ugly things are you talking about?
16:14 < jnwhiteh> the same thing we were talking about last night..
16:14 < aiju> Go doesn't have __attribute__ :P
16:14 < aiju> #define __asshole__ __attribute__ is appropriate
16:15 < jnwhiteh> It's a macro defined for the C source that is being
compiled to ensure that functions and data types that don't need to be exported
aren't.
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16:16 < niemeyer> jnwhiteh: I get a similar error if I define both as extern
16:16 < jnwhiteh> so perhaps we need to find the MachO way of hiding
16:16 < niemeyer> jnwhiteh: I'll dig further tonight
16:17 < jnwhiteh> thanks
16:17 < jnwhiteh> I'll play around a bit as well
16:17 < niemeyer> jnwhiteh: Nah, I think this is a bug in the Go linker
still
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16:17 < jnwhiteh> alright
16:18 < aiju> 14:44 < plexdev> http://is.gd/TENCLj by [Russ Cox] in 4
subdirs of go/src/pkg/runtime/ -- runtime: remove tiny
16:18 < aiju> WHAT
16:18 < jnwhiteh> niemeyer: hiding it on mac fixes the problem
16:19 < jnwhiteh> just FYI :P
16:19 < aiju> what's this hiding stuff about?  dynamic linking bureaucracy?
16:20 < niemeyer> jnwhiteh: That's awesome, thanks
16:20 < jnwhiteh> for non-exported functions and data types there's a macro
LUAI_FUNC and LUAI_DATA.  On gcc/elf these are extern but 'hidden' by the
attribute I posted earlier.  If they are extern'd and not hidden then there are
errors when 6l attempts to link a program against the cgo library.
16:20 < niemeyer> jnwhiteh: It doesn't make much sense from a linker
standpoint I believe, but it's good you got it working
16:21 < jnwhiteh> niemeyer: *nod* perhaps we can figuer out something that
makes more sense :P
16:21 < niemeyer> Hmm
16:21 * niemeyer tries something real quick
16:21 < niemeyer> (I was really supposed to be doing something else now..
:)
16:23 < jnwhiteh> then go do it =)
16:24 < jnwhiteh> this is just a hobby project
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16:28 < jnwhiteh> and with that change I can get golua compiling properly
against an embedded version of the Lua source rather than requiring it be
installed.
16:28 < niemeyer> jnwhiteh: I know, it's just too interesting to resist
16:31 < niemeyer> Even more now that I have a reproducer
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16:33 < jnwhiteh> sorry it took so long to get to a reproducable condition
:P
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16:43 < niemeyer> jnwhiteh: Hmm, I think I've already figured the proper fix
for the hidden flag itself
16:43 < niemeyer> jnwhiteh: Doesn't fix the extern issue yet
16:44 < jnwhiteh> well it was worth a quick try =)
16:44 < jnwhiteh> I'll be buried in benchmarking for the next day or two so
I wont' be doing much Go coding in the meantime, but I'll be around if I can
assist in any way =)
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16:46 < niemeyer> jnwhiteh: Awesome, thanks
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17:35 < wrtp> anyone know how to give a project a name on the Go Dashboard?
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17:46 < jodaro> go-nuts
17:46 < jodaro> hi
17:46 < skelterjohn> hi
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17:47 < plexdev> http://is.gd/HBw4SQ by [Russ Cox] in go/src/pkg/net/ --
net: fix build
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18:04 < plexdev> http://is.gd/ErPnRG by [Russ Cox] in go/doc/codelab/wiki/
-- codelab/wiki: fix build
18:04 < plexdev> http://is.gd/X8K10C by [Russ Cox] in go/doc/codelab/wiki/
-- codelab/wiki: fix freebsd build
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18:44 < aiju> hm why are go builds so slow suddenly
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18:50 < plexdev> http://is.gd/GKpQjD by [Rob Pike] in go/doc/ -- faq: fix
minor errors in programs reported by Wojciech Mikanik
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18:55 < niemeyer> aiju: Are they slow or is it locked down running network
tests?
18:59 < aiju> no, the builds themselves seem slower than usual …
19:00 < KBme> anyone know where the kate syntax highlighting file goes?
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19:08 <+iant> KBme: misc/kate
19:08 < aiju> /dev/null
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19:11 < KBme> iant: yeah, i mean where i have to copy it
19:11 < KBme> aiju: thanks
19:11 < aiju> :D
19:12 < aiju> to quote uriel, "text is text and not a rainbow" :P
19:12 <+iant> KBme: oh, sorry, don't know
19:12 < taruti> aiju: btw do you use acme?
19:12 < aiju> not on laptops
19:12 * taruti would like to have a rainbow-acme on desktop
19:12 < aiju> it's too awkward without a proper mouse
19:13 < taruti> yes
19:13 < KBme> aiju: i have been using acme for quite a while now too, but
every once in a while i check at where the other editors are
19:14 < KBme> (nowhere imo :)
19:14 < aiju> i don't use syntax highlighting in any other editor either
19:15 < adu> lol
19:15 < KBme> oh really?  care to elaborate on your reasons to not use
syntax highlighting?  please!  we're really interested!
19:15 < aiju> i'm not using crayons to colour the verbs in books i read
either
19:16 < KBme> aha!  very interesting!
19:16 < KBme> tell us moar!
19:16 < aiju> and wrong syntax highlighting slightly irritates me
19:16 < aiju> most syntax highlighting is wrong
19:16 < adu> aiju: I think most syntax highlighting is faulty, because of
badly written regexes, although even proper parsers can get things wrong, like JS
in HTML or SQL in strings
19:17 < adu> aiju: are you saying that even 100% correct syntax highlighting
is somehow bad for the soul?
19:17 < aiju> and i don't consider it too much of a help
19:17 < aiju> it's not bad
19:17 < aiju> it's just … unnecessary
19:18 < adu> aiju: I think that there are 2 things that in-editor parsers
are good for: completion and making comments gray, everything else, i would agree
is somewhat unnecessary
19:18 < aiju> i don't think completion is necessary and i can recognize
comments myself
19:18 < adu> no, end-tag completion while writing XML by hand _is_ necessary
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19:19 < KBme> +1
19:19 < aiju> 20:20 < aiju> but yeah, marking comments is the best use
of syntax highlighting i can think of
19:19 < aiju> 20:20 < aiju> adu: bad tools for bad tasks …
19:20 < aiju> 20:20 < aiju> i don't write XML :P
19:20 * KBme solves that by not writing xml
19:20 < aiju> (got reconnected)
19:20 < aiju> "IDE features are language smells"
19:20 < adu> perhaps 1-2 line comments, but for 1000-line comments it's a
bit trickier
19:20 < aiju> who writes 1000 line comments
19:20 < aiju> i call those "text files"
19:22 < skelterjohn> people who want the comment to show up in godoc?
19:22 < plexdev> http://is.gd/QXUzLq by [Rob Pike] in go/src/pkg/fmt/ --
fmt/doc: define width and precision for strings.
19:22 < plexdev> http://is.gd/CPpDXe by [Robert Griesemer] in go/doc/ -- go
spec: clarify address operators.
19:23 < aiju> if the code contains text, it's easily recognizable
19:23 < aiju> eh
19:23 < aiju> the comment
19:23 < aiju> if it's code, it can be moved to /dev/null
19:23 < adu> what I really don't like is the red comment themes, I usually
try to make the comments as light as possible so they're less distracting
19:23 < aiju> yeah, and while you're wondering which comment colour matches
the curtains, i get cracking :P
19:24 < adu> lol
19:24 < adu> well, do what you want
19:25 < adu> just don't make anti-bikeshedding your new bikeshed
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19:26 < skelterjohn> does that even mean anything?
19:26 < adu> skelterjohn: yes, it's meta
19:27 < Namegduf> I think we should anti-bikeshed only when they want to
paint it bad colours.
19:27 < skelterjohn> well then.
19:27 < Namegduf> </meta>
19:28 < aiju> amd64 allows the CS to be loaded with the null selector
19:28 < aiju> really, wtf
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19:33 < skelterjohn> what's a CS
19:33 < aiju> code selector
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19:34 < skelterjohn> what's bad about it being loaded with the null sector?
19:34 < aiju> null selector, which is invalid
19:34 <+iant> you can't execute any code
19:35 < aiju> iant: the weird thing is, you can
19:35 <+iant> wow, cool
19:35 < aiju> but if it is checked eventually, it will crash
19:35 <+iant> do you go into real mode or something?
19:35 < aiju> no
19:35 <+iant> bizarre
19:36 < aiju> amd64 is often quite bizarre
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19:41 < jumzi> bizarre, intressting...  it's all good
19:41 < jumzi> keeps one bussy
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20:18 < aiju> i still have to get used to {} after EVERY if
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20:30 < taruti> someone had taken the old dns code as a library, any link to
that?
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20:54 < plexdev> http://is.gd/uuNwKn by [Russ Cox] in go/src/pkg/net/ --
net: fix build on old Linux kernels
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21:02 < jodaro`> i've got a question about some of the bson stuff in
gomongo, if anyone happens to be reasonably familiar with it ...
21:03 < jodaro`> trying to figure out if/how i can append binary data, i.e.
equivalent to what i'd get from the C++ BSONBuilders appendBinData method
21:03 < dario_> New doesnt work as member function
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21:10 < jodaro`> hmm, actually ...
21:11 < jodaro`> maybe its not implemented yet
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21:20 < gobeginner1> Does anybody recognise the cause of this error?
21:20 < gobeginner1> "bash >6cov ./helloworld
21:20 < gobeginner1> 6cov: cannot read pc: can't translate address 90"
21:21 < aiju> what's 6cov supposed to do after all
21:21 < gobeginner1> I'm just trying the tools, 6prov work fine on the
binary but 6cov errors
21:22 < gobeginner1> from reading the docs I thin it prints the line number
of the source files executed during the run
21:22 < gobeginner1> I thin== I think
21:22 < aiju> it doesn't work here either
21:22 < aiju> are you on x86 or amd64?
21:24 < gobeginner1> intel core2 duo
21:25 < aiju> well 32 or 64 bit?
21:25 < gobeginner1> 64
21:30 < erus`> Is there a guide to making packages?
21:31 < aiju> just read an example
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21:32 < aiju> log is quite simple
21:33 < skelterjohn> erus`: what is the part that has you hung up?  the
coding or the building?
21:34 < erus`> got my code i want to package
21:34 < erus`> how do i set up the makefile
21:34 < aiju> erus`: read log
21:34 < aiju> damnit
21:34 < skelterjohn> two ways
21:34 < skelterjohn> you can take a look at another makefile that is in
another package and copy it
21:34 < skelterjohn> replacing its source list with your own
21:35 < skelterjohn> or you can use one of the available 3rd party build
tools (eg http://go-gb.googlecode.com)
21:35 < aiju> you can also write a shellscript called "run" with the build
commands
21:36 < aiju> and see old UNIX folks smile
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21:38 < erus`> mine complains about no main function...
21:38 < skelterjohn> i like the doc for gopack:
http://golang.org/cmd/gopack/
21:38 < skelterjohn> erus`: then you took the makefile from a cmd rather
htan a package
21:38 < skelterjohn> the only difference is you include Make.pkg instead of
Make.cmd
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21:39 < skelterjohn> you can probably edit the makefile
21:39 < skelterjohn> but your life will be easier if you use gb (the tool i
mentioned earlier) O:-)
21:40 < erus`> ok builds now
21:40 < erus`> is it worth putting each type in its own package
21:41 < skelterjohn> not even a little bit
21:41 < skelterjohn> don't try to write java using go
21:41 < erus`> so i can have my Simple 3D Math package s3dm.  With s3dm.V3
and s3dm.Mat4
21:41 < erus`> thats good practise?
21:41 < skelterjohn> that'd be appropriate, yes
21:41 < erus`> super
21:42 < skelterjohn> btw there is an existing matrix library
21:42 < erus`> mines for games
21:42 < skelterjohn> though yours might be optimized for graphics stuff
21:42 < erus`> Rotations and forward vectors etc
21:42 < skelterjohn> i don't know what a forward vector is, so i'll take
your word for it
21:43 < erus`> ok can i use this package without putting it in my
GOROOT/pkg?
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21:43 < skelterjohn> depends
21:43 < erus`> because its messy at the mo
21:43 < skelterjohn> there are two ways to do it without installing
21:43 < skelterjohn> one is you can just build it there and then you'd
import "./s3dm" from somewhere else
21:43 < skelterjohn> another is you can use gb and it will take care of
everything for you
21:44 < aiju> just do make install
21:44 < aiju> it will install the pac - oh wait
21:44 < aiju> sorry, i thought you meant GOROOT/src/pkg
21:45 < skelterjohn> the problem with just using makefiles and local imports
("./s3dm", etc) is that it's a pain to do incremental building
21:45 < aiju> erus`: what's wrong with putting it in GOROOT/pkg?
21:45 < erus`> maybe I will
21:45 < erus`> its not finished yet
21:46 < aiju> you don't need to manually put it there
21:46 < aiju> just do make install
21:46 < skelterjohn> i don't know about erus` use-case specifically, but i
have libraries that have stable versions (gomatrix) that i might want to work on,
and have something else import the worked on version, while something else would
use the stable version
21:46 < skelterjohn> if you do make install you could break some other stuff
21:46 < skelterjohn> also general GOROOT pollution
21:46 < aiju> what are you worried about?  EPA?
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21:47 < erus`> will further gomake installs over right the old crap?
21:47 < skelterjohn> funny, but the first thing i said is what i'm worried
about
21:47 < skelterjohn> erus`: yes
21:47 < aiju> you said "general GOROOT pollution"
21:47 < skelterjohn> oh - tons of crap in goroot
21:47 < aiju> anything beyond the stable/dev thing?
21:47 < skelterjohn> it's ugle
21:47 < skelterjohn> ugly
21:48 < skelterjohn> i shouldn't have said "also", that was misleading
21:50 < skelterjohn> is gomake a clone of make written in go, done so that
you can build go without having make installed?
21:50 < aiju> no
21:50 < skelterjohn> or is there something extra about it
21:50 < aiju> afaik gomake is a shellscript setting GOROOT
21:50 < skelterjohn> ah interesting
21:50 < aiju> export GOROOT=${GOROOT:-/home/aiju/go}
21:50 < aiju> exec make "$@"
21:50 < aiju> in my case
21:51 < aiju> i set GOROOT in my .bashrc and don't use gomake thus
21:51 < skelterjohn> me too
21:52 < aiju> it's annoying that those makefile templates check GOOS
21:52 < aiju> else one could build gofy without changing anything in the
goroot (except for "general GOROOT pollution" in pkg/ :P)
21:53 < skelterjohn> well...  without knowing GOOS, how would they know
which Xg to use?
21:55 < erus`> can I do something like from s3dm import V3 like in python
21:55 < skelterjohn> you would do: import "s3dm"
21:55 < skelterjohn> and then you can use s3dm.V3
21:56 < skelterjohn> erus`: what do you intend to use for drawing?
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21:57 < erus`> I am using banthar/opengl for my game and the image/png
package for my raytracer
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22:04 < aiju> skelterjohn: eh
22:04 < aiju> skelterjohn: you're mixing things up
22:04 < aiju> skelterjohn: GOOS is not GOARCH
22:04 < skelterjohn> ah right
22:05 < aiju> GOOS just chooses the runtime
22:06 < erus`> Oh no somethings not working like on windows
22:06 < aiju> erus`: usually a good sign
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22:11 < erus`> is there an os.Open() example because what i have doesnt work
on linux.  I suspect its a permissions issue
22:12 < skelterjohn> http://code.google.com/p/go-gb/source/browse/gb/pkg.go
line 129
22:12 < aiju> os.Open("file", os.O_RDONLY, 0)
22:12 < erus`> aiju: i need to create and write to (not append) a file
22:12 < aiju> os.Open("file", os.WRONLY, 0666)
22:12 < skelterjohn> just a note - 0666 is not the same as 666
22:13 < skelterjohn> 0666 is is octodecimal
22:13 < skelterjohn> err
22:13 < aiju> octal
22:13 < skelterjohn> octal
22:13 < skelterjohn> thanks hah
22:13 < erus`> myfile, err := os.Open("tracer.png", os.O_CREATE, 0666)
worked on windows
22:13 < aiju> kids these days don't know octal anymore
22:13 < aiju> erus`: you also need to specify os.O_WRONLY
22:13 < skelterjohn> os.O_CREATE | os.O_WRONLY
22:14 < erus`> thanks skelterjohn, was about to ask
22:14 < skelterjohn> they're bit-flags - same as with C
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22:15 < erus`> hurrah I can raytrace a sphere in linux too
22:15 < erus`> using my new package :)
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22:47 < erus`> my packaged package, if anyone's interested:
https://github.com/tm1rbrt/s3dm
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23:07 < rm445> heh, I was about to say isn't it O_CREAT, but I see Go has a
helpful synonym for it :-)
23:07 < aiju> they once asked thompson what he would have made different if
he could redo unix
23:08 < aiju> "i would spell creat() with an e"
23:08 < mpl> http://en.wikiquote.org/wiki/Kenneth_Thompson
23:08 < rm445> yeah, I was about to say, it's nice he finally gets to fix
his biggest regret :-)
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23:45 < erus`> anyone using OpenGL?
23:46 < erus`> gl.TexImage2D has been replaced
23:46 < erus`> im trying to use TexSubImage2D in its place but its not
loading
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23:57 < plexdev> http://is.gd/lph7be by [Ian Lance Taylor] in
go/src/pkg/netchan/ -- netchan: Avoid race condition in test.
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--- Log closed Thu Jan 27 00:00:05 2011