After upgrading sles 11 sp3 to sp4 Yast isn't working anymore,
seems I am missing some package,
how can I determine which package I need exactly?


sles11:~ # yast
libgcc_s.so.1 => not found
libgcc_s.so.1 => not found
libgcc_s.so.1 => not found
warning: the ncurses frontend is installed but does not work
package yast2-gtk is not installed
Something is wrong with the YaST user interface.
sles11:~ # zypper in yast2-gtk
zypper: error while loading shared libraries: libgcc_s.so.1: cannot open shared object file: No such file or directory
sles11:~ # ldd `which zypper`
linux-vdso.so.1 => (0x00007fff823eb000)
libzypp.so.908 => /usr/lib64/libzypp.so.908 (0x00007f2c97301000)
libreadline.so.5 => /lib64/libreadline.so.5 (0x00007f2c970bf000)
libaugeas.so.0 => /usr/lib64/libaugeas.so.0 (0x00007f2c96e7d000)
librt.so.1 => /lib64/librt.so.1 (0x00007f2c96c74000)
libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007f2c9696c000)
libm.so.6 => /lib64/libm.so.6 (0x00007f2c966f2000)
libgcc_s.so.1 => not found
libc.so.6 => /lib64/libc.so.6 (0x00007f2c96376000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f2c96158000)
libutil.so.1 => /lib64/libutil.so.1 (0x00007f2c95f55000)
librpm-4.4.so => /usr/lib64/librpm-4.4.so (0x00007f2c95cbd000)
libcurl.so.4 => /usr/lib64/libcurl.so.4 (0x00007f2c95a74000)
libxml2.so.2 => /usr/lib64/libxml2.so.2 (0x00007f2c95718000)
libz.so.1 => /lib64/libz.so.1 (0x00007f2c95502000)
libexpat.so.1 => /lib64/libexpat.so.1 (0x00007f2c952d7000)
libcrypto.so.0.9.8 => /usr/lib64/libcrypto.so.0.9.8 (0x00007f2c94f37000)
libhal.so.1 => /usr/lib64/libhal.so.1 (0x00007f2c94d26000)
libhal-storage.so.1 => /usr/lib64/libhal-storage.so.1 (0x00007f2c94b1a000)
libdbus-1.so.3 => /lib64/libdbus-1.so.3 (0x00007f2c948dc000)
libgcc_s.so.1 => not found
libncurses.so.5 => /lib64/libncurses.so.5 (0x00007f2c94693000)
libfa.so.1 => /usr/lib64/libfa.so.1 (0x00007f2c94481000)
/lib64/ld-linux-x86-64.so.2 (0x00007f2c97a4a000)
libgcc_s.so.1 => not found
librpmdb-4.4.so => /usr/lib64/librpmdb-4.4.so (0x00007f2c94176000)
librpmio-4.4.so => /usr/lib64/librpmio-4.4.so (0x00007f2c93ea5000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f2c93ca1000)
liblzma.so.5 => /lib64/liblzma.so.5 (0x00007f2c93a7d000)
libbz2.so.1 => /lib64/libbz2.so.1 (0x00007f2c9386e000)
libpopt.so.0 => /lib64/libpopt.so.0 (0x00007f2c93665000)
libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f2c93446000)
libidn.so.11 => /usr/lib64/libidn.so.11 (0x00007f2c93213000)
libssl.so.0.9.8 => /usr/lib64/libssl.so.0.9.8 (0x00007f2c92fbc000)
libldap-2.4.so.2 => /usr/lib64/libldap-2.4.so.2 (0x00007f2c92d72000)
libgssapi_krb5.so.2 => /usr/lib64/libgssapi_krb5.so.2 (0x00007f2c92b46000)
libkrb5.so.3 => /usr/lib64/libkrb5.so.3 (0x00007f2c928a4000)
libk5crypto.so.3 => /usr/lib64/libk5crypto.so.3 (0x00007f2c9267d000)
libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007f2c92479000)
libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007f2c92276000)
libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f2c9205e000)
libuuid.so.1 => /lib64/libuuid.so.1 (0x00007f2c91e59000)
libsmbios.so.2 => /usr/lib64/libsmbios.so.2 (0x00007f2c91bb7000)
liblber-2.4.so.2 => /usr/lib64/liblber-2.4.so.2 (0x00007f2c919a8000)
libsasl2.so.2 => /usr/lib64/libsasl2.so.2 (0x00007f2c9178c000)
libkrb5support.so.0 => /usr/lib64/libkrb5support.so.0 (0x00007f2c91583000)
libgcc_s.so.1 => not found