I was trying to install Oracle 10g on the Solaris 10 SPARC 64 and during linking I got the following error message:
Error in invoking 'ioracle' of makefile '/opt/home/oracle10g/rdbms/lib/ins_rdbms.mk'.
I successfully had installed 10g clusterware, just got this error on oracle database server installation.
I was able to fix it by editing /etc/system file and adding following,
after a reboot, i did the installation successfully.