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LFS is a project that provides you with the steps necessary to build your own custom Linux system.


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Old 08-10-2009, 03:46 PM   #1
LQ Newbie
Registered: Nov 2006
Distribution: Slackware, Linux from Scratch, Ubuntu
Posts: 24

Rep: Reputation: 16
MPFR-2.4.1 Check Failures in LFS 6.5 RC2


I'm having trouble with the tests for MPFR-2.4.1 in Chapter 6 of the RC. I
didn't get any compilation or compiling errors; they only showed up in the
test suite. The two tests that failed were tset_ld and tcmp_ld. Because
I'm in chapter 6, this shouldn't matter, but my host operating system is
Ubuntu Netbook Remix, which is based on 9.04.

The relevant parts of the check follow:
Error: mpfr_get_ld o mpfr_set_ld <> Id
d=[FA 99 04 08 00 00 00 00 00 00 DD BF] 4.903825107657432356e-4943
e=[00 00 00 00 00 00 00 00 00 00 04 08] 4.9038254357253902254e-4943
FAIL: tset_ld
Error in mpfr_cmp_ld 2.34763465 and 2.34763464999999982296685629990
FAIL: tcmp_ld

Thanks in advance for your help.
Joe McLaughlin
Old 08-12-2009, 06:53 PM   #2
LQ Newbie
Registered: Nov 2006
Distribution: Slackware, Linux from Scratch, Ubuntu
Posts: 24

Original Poster
Rep: Reputation: 16
How I got past this was to copy the GMP and MPFR directories into the GCC directory, like in Chapter 5, and then compile GCC. Most of the checks passed, as is expected by the book. Does anyone here know what the consequences are of compiling GMP and MPFR as part of GCC versus compiling them separately?



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