Package: libc6 Version: 2.3.1-15 After updating to libc6 2.3.1-15 some programs (I noticed this behavior in Evolution 1.0.5 and Gabber 0.8.7-2) give a segmentation fault on startup. I traced it with gdb and it turned out that the function call in which the segfault occurs is to iconv_close() in libc6. It works fine with libc6 2.2.5-11.2.