extend.texi: Edit "gnu_inline" documentation.

* doc/extend.texi: Edit "gnu_inline" documentation.
* doc/invoke.texi: Edit "-fgnu89-inline" documentation.

From-SVN: r122870

3 files changed, 22 insertions, 14 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f123d10a4d8..5fc37781c2b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>
 
+	* doc/extend.texi: Edit "gnu_inline" documentation.
+	* doc/invoke.texi: Edit "-fgnu89-inline" documentation.
+
+2007-03-12  Brooks Moses  <brooks.moses@codesourcery.com>
+
 	* doc/extend.texi: Fix cpp.info cross-reference.
 	* doc/invoke.texi: Fix cpp.info cross-reference.
 	* doc/passes.texi: Fix gcc.info cross-reference.
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 19bcc5e9787..0ba7c29b500 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -1654,10 +1654,11 @@ preprocessor macros @code{__GNUC_GNU_INLINE__} or
 @code{__GNUC_STDC_INLINE__} are defined.  @xref{Inline,,An Inline
 Function is As Fast As a Macro}.
 
-Note that since the first version of GCC to support C99 inline
-semantics is 4.3, earlier versions of GCC which accept this attribute
-effectively ignore it.  Its only effect is to disable warnings about
-using inline functions in C99 mode.
+Note that since the first version of GCC to support C99 inline semantics
+is 4.3, earlier versions of GCC which accept this attribute effectively
+assume that it is always present, whether or not it is given explicitly.
+In versions prior to 4.3, the only effect of explicitly including it is
+to disable warnings about using inline functions in C99 mode.
 
 @cindex @code{flatten} function attribute
 @item flatten
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index dc3abf1c9e6..90f9d5a9caa 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -1218,16 +1218,18 @@ these standard versions.
 @opindex fgnu89-inline
 The option @option{-fgnu89-inline} tells GCC to use the traditional
 GNU semantics for @code{inline} functions when in C99 mode.
-@xref{Inline,,An Inline Function is As Fast As a Macro}.  This option
-is accepted and ignored by GCC versions 4.1.3 up to but not including
-4.3.  In GCC versions 4.3 and later it changes the behavior of GCC in
-C99 mode.  Using this option is roughly equivalent to adding the
-@code{gnu_inline} function attribute to all inline functions
-(@pxref{Function Attributes}).
-
-The option @option{-fno-gnu89-inline} is not supported in versions of
-GCC before 4.3.  It will be supported only in C99 or gnu99 mode, not
-in C89 or gnu89 mode.
+@xref{Inline,,An Inline Function is As Fast As a Macro}.  Using this
+option is roughly equivalent to adding the @code{gnu_inline} function
+attribute to all inline functions (@pxref{Function Attributes}).
+
+This option is accepted by GCC versions 4.1.3 and up.  In GCC versions
+prior to 4.3, C99 inline semantics are not supported, and thus this
+option is effectively assumed to be present regardless of whether or not
+it is specified; the only effect of specifying it explicitly is to
+disable warnings about using inline functions in C99 mode.  Likewise,
+the option @option{-fno-gnu89-inline} is not supported in versions of
+GCC before 4.3.  It will be supported only in C99 or gnu99 mode, not in
+C89 or gnu89 mode.
 
 The preprocesor macros @code{__GNUC_GNU_INLINE__} and
 @code{__GNUC_STDC_INLINE__} may be used to check which semantics are