diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 18 |
1 files changed, 3 insertions, 15 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 0c2db4739d0..9126d437ace 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -99,24 +99,12 @@ from being defined in the @file{.h} file to being part of the @c prevent bad page break with this line You can control the compilation driver. -@defmac SWITCH_TAKES_ARG (@var{char}) -A C expression which determines whether the option @option{-@var{char}} -takes arguments. The value should be the number of arguments that -option takes--zero, for many options. - -By default, this macro is defined as -@code{DEFAULT_SWITCH_TAKES_ARG}, which handles the standard options -properly. You need not define @code{SWITCH_TAKES_ARG} unless you -wish to add additional options which take arguments. Any redefinition -should call @code{DEFAULT_SWITCH_TAKES_ARG} and then check for -additional options. -@end defmac - @defmac WORD_SWITCH_TAKES_ARG (@var{name}) A C expression which determines whether the option @option{-@var{name}} takes arguments. The value should be the number of arguments that -option takes--zero, for many options. This macro rather than -@code{SWITCH_TAKES_ARG} is used for multi-character option names. +option takes--zero, for many options. +This macro does not need to handle options defined in @file{.opt} +files, only those that are handled purely through specs. By default, this macro is defined as @code{DEFAULT_WORD_SWITCH_TAKES_ARG}, which handles the standard options |