"Sathyanarayanan, Sayee" <s.sathyanarayanan@xxxxxxxxxxxx> writes: > We have some Old SAPI C applications that were built using gcc 2.96 and > we are moving to CentOS 4 and are currently using gcc 3.3.1. Initially > we > passed the options -WO0,-lang-c to the preprocessor. This is not > recognized in the newer version of gcc. Could you please assist in > rebuilding this binary. I tried passing -x c to the preprocessor using > Wp but to no avail. gcc 2.96 is ancient and even gcc 3.3.1 is very old. The current version of gcc is 4.4.0. Normally you should not need to pass -lang-c or -x c to the preprocessor. I think gcc 3.3.1 included the integrated preprocessor in any case. I think you need to tell us what you are doing and what is going wrong. Ian