Many Japanese RedHat 5.x Users using libwcsmbs package, this package adds wcstombs function to glibc 2.0.x . Now , RedHat 6.x and Raw Hide handle glibc 2.1.x, that already have wcstombs function. so, when Upgrade system (have libwcsmbs installed) to RedHat 6.x (or RawHide) then system don't start unless reboot from rescue disk and delete /etc/ld.so.preload To solve this problem. Please add just two line to glibc-2.1.x SPEC file. Provides: libwcsmbs Obsoletes: libwcsmbs
That is not a package shipped by Red Hat and we can not change our packages to accomodate changes made by contributed RPMs. Especially with glibc, which is very sensitive to any change in the list of provides and/or obsoletes.