diff options
Diffstat (limited to 'gcc/doc/options.texi')
| -rw-r--r-- | gcc/doc/options.texi | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/doc/options.texi b/gcc/doc/options.texi index e39d79e..608afa2 100644 --- a/gcc/doc/options.texi +++ b/gcc/doc/options.texi @@ -364,7 +364,8 @@ for later processing. @item Alias(@var{opt}) @itemx Alias(@var{opt}, @var{arg}) @itemx Alias(@var{opt}, @var{posarg}, @var{negarg}) -The option is an alias for @option{-@var{opt}}. In the first form, +The option is an alias for @option{-@var{opt}} (or the negative form +of that option, depending on @code{NegativeAlias}). In the first form, any argument passed to the alias is considered to be passed to @option{-@var{opt}}, and @option{-@var{opt}} is considered to be negated if the alias is used in negated form. In the second form, the @@ -387,6 +388,13 @@ not need to handle it and no @samp{OPT_} enumeration value is defined for it; only the canonical form of the option will be seen in those places. +@item NegativeAlias +For an option marked with @code{Alias(@var{opt})}, the option is +considered to be an alias for the positive form of @option{-@var{opt}} +if negated and for the negative form of @option{-@var{opt}} if not +negated. @code{NegativeAlias} may not be used with the forms of +@code{Alias} taking more than one argument. + @item Ignore This option is ignored apart from printing any warning specified using @code{Warn}. The option will not be seen by specs and no @samp{OPT_} |