I probably have the same problem: running Sid x86_64 I updated to eglibc 2.11.1-3 (from 2.10.2-9) and apps are crashing. E.g. I tried to build Qt 4.6.3 and qmake is crashing while configuring.
cat /proc/cpuinfo: model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz gcc -v: gcc version 4.4.4 (Debian 4.4.4-4) gdb qmake: (gdb) r Starting program: qmake Program received signal SIGSEGV, Segmentation fault. 0x000000000072a060 in strlen () (gdb) where #0 0x000000000072a060 in strlen () #1 0x000000000045b4ba in qstrlen(char const*) () #2 0x0000000000594f47 in QString::fromLatin1_helper(char const*, int) () #3 0x00000000005950c8 in QString::fromAscii_helper(char const*, int) () #4 0x00000000005951c5 in QString::fromAscii(char const*, int) () #5 0x0000000000420b61 in QString::operator=(char const*) () #6 0x0000000000549ca5 in VCCustomBuildTool::VCCustomBuildTool() () #7 0x000000000054c894 in VCFilter::VCFilter() () #8 0x0000000000553539 in __static_initialization_and_destruction_0 () #9 0x0000000000553565 in global constructors keyed to _ZN16VCCLCompilerToolC2Ev () #10 0x0000000000654d76 in __do_global_ctors_aux () #11 0x00000000006b664b in _init () #12 0x00007ffff7dc2c50 in ?? () from /usr/lib/libstdc++.so.6 #13 0x0000000000654cd5 in __libc_csu_init () #14 0x00007ffff72f0be0 in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=0x654c90 <__libc_csu_init>, fini=0x7ffff762e300 <initial>, rtld_fini=0x7ffff7dc2420 <typeinfo for std::locale::facet>, stack_end=0x7fffffffe0b8) at libc-start.c:187 #15 0x0000000000402779 in _start () -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org