Shorthand Options

The following options serve as "shorthand" for other options accepted by the compiler:

-fugly

Specify that certain "ugly" constructs are to be quietly accepted. Same as:

-fugly-args -fugly-assign -fugly-assumed
-fugly-comma -fugly-complex -fugly-init
-fugly-logint

These constructs are considered inappropriate to use in new or well-maintained portable Fortran code, but widely used in old code. See section Distensions, for more information. Note: The `-fugly' option is likely to be removed in a future version. Implicitly enabling all the `-fugly-*' options is unlikely to be feasible, or sensible, in the future, so users should learn to specify only those `-fugly-*' options they really need for a particular source file.

-fno-ugly

Specify that all "ugly" constructs are to be noisily rejected. Same as:

-fno-ugly-args -fno-ugly-assign -fno-ugly-assumed
-fno-ugly-comma -fno-ugly-complex -fno-ugly-init
-fno-ugly-logint

See section Distensions, for more information.

-ff66

Specify that the program is written in idiomatic FORTRAN 66. Same as `-fonetrip -fugly-assumed'. The `-fno-f66' option is the inverse of `-ff66'. As such, it is the same as `-fno-onetrip -fno-ugly-assumed'. The meaning of this option is likely to be refined as future versions of g77 provide more compatibility with other existing and obsolete Fortran implementations.

-ff77

Specify that the program is written in idiomatic UNIX FORTRAN 77 and/or the dialect accepted by the f2c product. Same as `-fbackslash -fno-typeless-boz'. The meaning of this option is likely to be refined as future versions of g77 provide more compatibility with other existing and obsolete Fortran implementations.

-fno-f77

The `-fno-f77' option is not the inverse of `-ff77'. It specifies that the program is not written in idiomatic UNIX FORTRAN 77 or f2c, but in a more widely portable dialect. `-fno-f77' is the same as `-fno-backslash'. The meaning of this option is likely to be refined as future versions of g77 provide more compatibility with other existing and obsolete Fortran implementations.

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