diff options
Diffstat (limited to 'gcc/fortran/invoke.texi')
| -rw-r--r-- | gcc/fortran/invoke.texi | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/gcc/fortran/invoke.texi b/gcc/fortran/invoke.texi index e90656e4eef..e8b8409319e 100644 --- a/gcc/fortran/invoke.texi +++ b/gcc/fortran/invoke.texi @@ -115,7 +115,8 @@ by type. Explanations are in the following sections. @item Fortran Language Options @xref{Fortran Dialect Options,,Options controlling Fortran dialect}. @gccoptlist{-fall-intrinsics -fbackslash -fcray-pointer -fd-lines-as-code @gol --fd-lines-as-comments -fdefault-double-8 -fdefault-integer-8 @gol +-fd-lines-as-comments @gol +-fdec -fdec-structure -fdefault-double-8 -fdefault-integer-8 @gol -fdefault-real-8 -fdollar-ok -ffixed-line-length-@var{n} @gol -ffixed-line-length-none -ffree-form -ffree-line-length-@var{n} @gol -ffree-line-length-none -fimplicit-none -finteger-4-integer-8 @gol @@ -228,6 +229,24 @@ given they are treated as if the first column contained a blank. If the @option{-fd-lines-as-comments} option is given, they are treated as comment lines. +@item -fdec +@opindex @code{fdec} +DEC compatibility mode. Enables extensions and other features that mimic +the default behavior of older compilers (such as DEC). +These features are non-standard and should be avoided at all costs. +For details on GNU Fortran's implementation of these extensions see the +full documentation. + +Other flags enabled by this switch are: +@option{-fdollar-ok} @option{-fcray-pointer} @option{-fdec-structure} + +@item -fdec-structure +@opindex @code{fdec-structure} +Enable DEC @code{STRUCTURE} and @code{RECORD} as well as @code{UNION}, +@code{MAP}, and dot ('.') as a member separator (in addition to '%'). This is +provided for compatibility only; Fortran 90 derived types should be used +instead where possible. + @item -fdollar-ok @opindex @code{fdollar-ok} @cindex @code{$} |