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docs: add known issue about missing forced unwind support

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This has been reported many times, and has become a FAQ.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
This commit is contained in:
Yann E. MORIN" 2011-04-07 19:02:56 +02:00
parent bdf0b26e19
commit bc35f9a934
1 changed files with 17 additions and 0 deletions
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17
docs/B - Known issues.txt
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@ -146,3 +146,20 @@ Workaround:
labelled "Use sjlj for exceptions".
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Symptoms:
Installing the C library headers and start files fails because of
missing unwind support, with a message like:
configure: error: forced unwind support is required
Explanations:
The issue seems to be related to building NPTL on old versions
of glibc (and possibly eglibc as well) on some architectures
(seen on powerpc, s390, s390x and x86_64).
Fix:
None so far. It would require some glibc hacking.
Workaround:
Try setting "Force unwind support" in the "C-library" menu.
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