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[00:00:02] <jepler> log1p(x) is equivalent to log(1+x), except that it is more accurate when x is close to zero
[00:00:36] <memleak> i wonder how seb was able to build RTAI debs if i cant get past this stupid stubs-32 issue..
[00:01:11] <memleak> i could just modify /usr/include/stubs.h and that'd fix it (for me)
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[00:02:06] <jepler> s_log1p.c has an implementation of log1p named log1p, so it's probably because of a lack of a proper declaration of log1p that you're encountering a problem
[00:02:16] <jepler> so you need a header which declares it
[00:02:26] <memleak> or modify mathP.h
[00:02:58] <memleak> http://dpaste.com/14BDJ5E
[00:03:15] <memleak> debian's userspace headers shouldnt be broken in the first place
[00:03:25] <jepler> they aren't broken
[00:03:39] <memleak> # include <gnu/stubs-32.h> is a nonexistant file
[00:03:56] <memleak> its in i386-linux-gnu/gnu/ not gnu/
[00:04:30] <jepler> $ cat are-stubs-broken.c
[00:04:30] <jepler> #include <gnu/stubs.h>
[00:04:30] <jepler> int main() { return 0; }
[00:04:30] <jepler> $ gcc are-stubs-broken.c
[00:04:30] <jepler> $
[00:04:37] <jepler> does this work for you?
[00:05:08] <jepler> I very much doubt gnu/stubs.h is broken; *including it from a kernel module* is never something that the linux kernel folks nor the glibc folks have defined as working
[00:05:25] <jepler> it may have worked for years by coincidence, but as you no doubt know that statement is true about a bunch of stuff in rtai that is better fixed properly
[00:06:00] <memleak> that .c file works fine.
[00:08:17] <memleak> +extern double __ieee754_log1p(double); to mathP.h and return __ieee754_log1p(t+__ieee754_sqrt(2.0*t+t*t));
[00:08:24] <memleak> is that right now?
[00:09:11] <memleak> if i had your skills this would be fixed in seconds
[00:09:40] <jepler> to me it looked like the source file base/math/s_log1p.c defined a function named log1p, and I did not see a file that defined a function named __ieee754_log1p
[00:10:50] <memleak> i added __ieee754_log1p to mathP.h
[00:10:58] <memleak> (just now for testing)
[00:11:02] <jepler> you added a *declaration*
[00:11:10] <jepler> the declaration is not so useful without a *definition*
[00:11:19] <jepler> however, I would expect modpost to diagnose the problem
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[00:14:51] <jepler> (huh, log1p was not in C89)
[00:15:57] <memleak> jepler if you can fix a few .c files in base/math I can do the rest but its getting it started that i cant do, i hardly know any C
[00:16:56] <memleak> ill be more than happy to copypasta and sed the entire math tree once i have a baseline
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[01:00:34] <jepler> memleak: I can't test it, but ..
[01:02:13] <jepler> https://github.com/NTULINUX/RTAI/pull/3
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[01:12:10] <jepler> (like the pull request says, compile-tested but not run-tested)
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[04:58:38] <memleak> linuxcnc and latency-test work with your new math changes jepler
[04:58:44] <memleak> pull request merged
[04:58:58] <memleak> sweet, now i can make debs in the next few days
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[20:12:49] <memleak> how i restart the deb-pkg versions system? i messed up a few kernels but the sub version keeps accumulating, i.e. linux-firmware-image-3.14.18_3.14.18-4_i386 how do i restart it back to linux-firmware-image-3.14.18 ?
[20:14:42] <memleak> i dont want my first .deb packages that ill be posting online to have cruft from previous local builds
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[21:18:32] <jepler> memleak: probably there's some metadata in debian/, possibly debian/changelog
[21:21:42] <jepler> I was hoping that "regal" would let axis run accelerated on systems where only "OpenGL ES" is accelerated, but I didn't even succeed in getting regal's own demo programs to switch from glx/opengl to egl/opengles on my odroid. No doubt I've done *something* wrong in the process.
[21:21:54] <jepler> https://github.com/p3/regal
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[21:30:02] <memfrob> i even deleted the debian folder, no change
[21:32:40] <memfrob> its pulling it from somewhere
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[22:30:39] <memfrob> ah it stores it in .version
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[23:19:37] <jepler> > Why should anyone use an operating system when IT is a fast advancing field of technology?
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