Hi All Ignore my earlier mail. Since I was porting this software, I was not aware that there was a macro converting Fortran calls to equivalent C function names. Upon using the macros and also using -fno-second-underscore, I was able to successfully get past the issue. With Regards Vardhan -----Original Message----- From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx]On Behalf Of Vardhan, Sundara (GE Infra, Energy) Sent: Tuesday, July 22, 2008 3:24 PM To: gcc-help@xxxxxxxxxxx Subject: Linking fortran with C libs Hi All I installed gcc 4.2.3 with gfortran on AIX 5.3. Compiled and created a shared object with programs written in C. Compiled fortran code with gfortran and tried to link with the earlier created shared object. I get the following error undefined reference to `.rtregister_' where rt_register is the 'C' function call that is required. The same set of programs worked fine on a Linux box with g77. Am I missing anything? Your help will be greatly appreciated. With Regards Vardhan
