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| author | nicola <nicola@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-08-29 22:50:27 +0000 |
|---|---|---|
| committer | nicola <nicola@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-08-29 22:50:27 +0000 |
| commit | 88bf0fb137e7d0ac89f870100f37034f0ce8f718 (patch) | |
| tree | 91362e7c51ef31f510cdfdb144ade271ed7e720a /gcc/doc/cpp.texi | |
| parent | a4cad234222856c8d5066511b9cd458436bc8d5c (diff) | |
| download | gcc-88bf0fb137e7d0ac89f870100f37034f0ce8f718.tar.gz | |
Extended documentation on ObjC macros and flags
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@56668 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc/cpp.texi')
| -rw-r--r-- | gcc/doc/cpp.texi | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/doc/cpp.texi b/gcc/doc/cpp.texi index 0770e418a83..e84cf5f78c2 100644 --- a/gcc/doc/cpp.texi +++ b/gcc/doc/cpp.texi @@ -2028,8 +2028,10 @@ mechanism based on @code{setjmp} and @code{longjmp} for exception handling. @item __NEXT_RUNTIME__ -This macro is defined, with value 1, when the NeXT runtime -(as in @option{-fnext-runtime}) is in use for Objective-C. +This macro is defined, with value 1, if (and only if) the NeXT runtime +(as in @option{-fnext-runtime}) is in use for Objective-C. If the GNU +runtime is used, this macro is not defined, so that you can use this +macro to determine which runtime (NeXT or GNU) is being used. @item __TARGET_BITS_ORDER__ This macro describes the target's bits order in a byte. Its value is |