From bc35f9a9349284b5ed1637cc0bb72259592af5d3 Mon Sep 17 00:00:00 2001 From: "Yann E. MORIN\"" Date: Thu, 7 Apr 2011 19:02:56 +0200 Subject: docs: add known issue about missing forced unwind support This has been reported many times, and has become a FAQ. Signed-off-by: "Yann E. MORIN" diff --git a/docs/B - Known issues.txt b/docs/B - Known issues.txt index e09d3f5..5b8824b 100644 --- a/docs/B - Known issues.txt +++ b/docs/B - Known issues.txt @@ -146,3 +146,20 @@ Workaround: labelled "Use sjlj for exceptions". -------------------------------- +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. + +-------------------------------- -- cgit v0.10.2-6-g49f6