During 11gR1 and 11gR2 installation on AIX6 you can hit this error:

make -f $ORACLE_HOME/sysman/lib/ins_emagent.mk relink_sharedobj SHAREDOBJ=libnmemso

The solution is described in below Metalink note:

Linking Fails With “ld: 0706-010 The binder was killed by a signal: Segmentation fault” On AIX 6.1 [ID 1264074.1]

The solution is simple, No reboot is normally required after applying the patch.

For AIX 6.1 TL6 SP1, IBM has released fix IZ88711:
After installing the AIX fix, run the following command to link the libnmemso.so library.

% make -f $ORACLE_HOME/sysman/lib/ins_emagent.mk relink_sharedobj SHAREDOBJ=libnmemso