'emerge apr-util' fails with: ... checking for unistd.h... yes checking for ldap support... checking for ldap_init in -lldap50... no checking for ldap_init in -lldapssl41... no checking for ldap_init in -lldapssl40... no checking for ldap_init in -lldapssl30... no checking for ldap_init in -lldapssl20... no checking for ldap_init in -lldapsdk... no checking for ldap_init in -lldapsdk... no checking for ldap_init in -lldap... no checking for ldap_init in -lldap... no checking for ldap_init in -lldap... no checking for ldap_init in -lldap... no configure: error: could not find an LDAP library !!! Please attach the following file when seeking support: !!! /var/tmp/portage/dev-libs/apr-util-1.4.1/work/apr-util-1.4.1/config.log * ERROR: dev-libs/apr-util-1.4.1 failed (configure phase): * econf failed root@cheetahnew:/root(19)# qlist -Iv openldap net-nds/openldap-2.4.33 root@cheetahnew:/root(22)# ldd /usr/lib/libldap*.so /usr/lib/libldapcpp.so: linux-vdso.so.1 (0x00007fff751c1000) libldap-2.4.so.2 => /usr/lib64/libldap-2.4.so.2 (0x00007fc628a77000) liblber-2.4.so.2 => /usr/lib64/liblber-2.4.so.2 (0x00007fc628868000) libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/libstdc++.so.6 (0x00007fc628562000) libc.so.6 => /lib64/libc.so.6 (0x00007fc6281ba000) libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fc627fa4000) libsasl2.so.2 => /usr/lib64/libsasl2.so.2 (0x00007fc627d86000) libresolv.so.2 => /lib64/libresolv.so.2 (0x00007fc627b6f000) libgnutls.so.26 => not found libgcrypt.so.11 => /usr/lib64/libgcrypt.so.11 (0x00007fc6278ef000) libm.so.6 => /lib64/libm.so.6 (0x00007fc6275fd000) /lib64/ld-linux-x86-64.so.2 (0x00007fc628f50000) libdl.so.2 => /lib64/libdl.so.2 (0x00007fc6273f9000) libgpg-error.so.0 => /usr/lib64/libgpg-error.so.0 (0x00007fc6271f4000) /usr/lib/libldap_r.so: linux-vdso.so.1 (0x00007fffd37da000) liblber-2.4.so.2 => /usr/lib64/liblber-2.4.so.2 (0x00007f4056e42000) libsasl2.so.2 => /usr/lib64/libsasl2.so.2 (0x00007f4056c25000) libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f4056a0d000) libgnutls.so.26 => not found libgcrypt.so.11 => /usr/lib64/libgcrypt.so.11 (0x00007f405678e000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f4056570000) libc.so.6 => /lib64/libc.so.6 (0x00007f40561c8000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f4055fc4000) libgpg-error.so.0 => /usr/lib64/libgpg-error.so.0 (0x00007f4055dbf000) /lib64/ld-linux-x86-64.so.2 (0x00007f40572f9000) /usr/lib/libldap.so: linux-vdso.so.1 (0x00007fff6c5ff000) liblber-2.4.so.2 => /usr/lib64/liblber-2.4.so.2 (0x00007f750d312000) libsasl2.so.2 => /usr/lib64/libsasl2.so.2 (0x00007f750d0f5000) libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f750cedd000) libgnutls.so.26 => not found libgcrypt.so.11 => /usr/lib64/libgcrypt.so.11 (0x00007f750cc5e000) libc.so.6 => /lib64/libc.so.6 (0x00007f750c8b5000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f750c6b1000) libgpg-error.so.0 => /usr/lib64/libgpg-error.so.0 (0x00007f750c4ad000) /lib64/ld-linux-x86-64.so.2 (0x00007f750d7c1000) and 'emerge openldap' fails now due to bug 440748.
Created attachment 327944 [details] /var/tmp/portage/dev-libs/apr-util-1.4.1/work/apr-util-1.4.1/config.log
You said it yourself - "...due to broken openldap after gnutls-3.1.3 upgrade.". Most likely, once that's fixed, there won't be a problem here. Reopen, if it's otherwise.