Hi All I am using gfortran to compile and AIX ld for linker/loader. For this application, I need to use the bmaxdata loader option for which I used -W1,-bmaxdata:0x40000000 and passed it to gfortran. After compile and link, when I run the dump command to examine the binary, maxdata is not set to 0x40000000 but to 0. Any idea if what I am doing is wrong? Is it not that we need use -W1,option for passing any thing to the loader? Does it not apply to gfortran? As always I would appreciate your input and advice. Thanks and Regards Vardhan