MD
Tells the linker to search for unresolved references in a multithreaded, dynamic-link run-time library.
MDs
Tells the linker to search for unresolved references in a single-threaded, dynamic-link run-time library. This is a deprecated option. There is no replacement option.
MT
Tells the linker to search for unresolved references in a multithreaded, static run-time library.
nodefaultlibs
Prevents the compiler from using standard libraries when linking.
nofor-main
Specifies that the main program is not written in Fortran.