General :: Find Equivalent Cc Options For Gcc Compiler ?

I am comiling some programs on Linux using gcc previously compiled using cc compiler on Solaris. Below are some of the confusions:

1. There is -xildoff option in cc which is giving error "language ildoff not recognized". xildoff in cc is for switching off the option of incremental editor ild. Is there anything equivalent on gcc?

2. There is runtime link option in cc as -R but gcc just says "unrecognised option". Does gcc only supports LD_RUN_PATH?

3. There is -Xa option to force cc to chose a particular flavor of c.Its for default c and K&R C. gcc has -std option but not sure which one is equivalent to -Xa in c. It seems -std=c90?