diff options
| author | manu <manu@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-16 15:31:46 +0000 |
|---|---|---|
| committer | manu <manu@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-10-16 15:31:46 +0000 |
| commit | 77b27208e4842b5adb8d007d52ca6bbaa03f0e6d (patch) | |
| tree | 4ce566a273abe5c8b53f22c6bfb4b3a8226b26e0 /gcc/doc/options.texi | |
| parent | b2a4240a1c8eeb25325a5ba4a8dd68f5406bff6b (diff) | |
| download | gcc-77b27208e4842b5adb8d007d52ca6bbaa03f0e6d.tar.gz | |
2012-10-16 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR c/53063
PR c/40989
gcc/
* optc-gen.awk: Handle new form of LangEnabledBy.
* opts.c (set_Wstrict_aliasing): Declare here. Make static.
* common.opt (Wstrict-aliasing=,Wstrict-overflow=): Do not use Init.
* doc/options.texi (LangEnabledBy): Document new form.
* flags.h (set_Wstrict_aliasing): Do not declare.
c-family/
* c.opt (Wstrict-aliasing=,Wstrict-overflow=): Use LangEnabledBy.
* c-opts.c (c_common_handle_option): Do not set them here. Add
comment.
(c_common_post_options): Likewise.
testsuite/
* gcc.dg/Wstrict-overflow-24.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@192502 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc/options.texi')
| -rw-r--r-- | gcc/doc/options.texi | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/doc/options.texi b/gcc/doc/options.texi index 9c004c8cd3f..8011502f9f1 100644 --- a/gcc/doc/options.texi +++ b/gcc/doc/options.texi @@ -463,11 +463,15 @@ value of @option{-fmath-errno} for languages that do not use If not explicitly set, the option is set to the value of @option{-@var{opt}}. @item LangEnabledBy(@var{language}, @var{opt}) +@itemx LangEnabledBy(@var{language}, @var{opt}, @var{posarg}, @var{negarg}) When compiling for the given language, the option is set to the value -of @option{-@var{opt}}, if not explicitly set. It is possible to -specify several different languages. Each @var{language} must have -been declared by an earlier @code{Language} record. @xref{Option file -format}. +of @option{-@var{opt}}, if not explicitly set. In the second form, if +@var{opt} is used in the positive form then @var{posarg} is considered +to be passed to the option, and if @var{opt} is used in the negative +form then @var{negarg} is considered to be passed to the option. It +is possible to specify several different languages. Each +@var{language} must have been declared by an earlier @code{Language} +record. @xref{Option file format}. @item NoDWARFRecord The option is omitted from the producer string written by |