From Zack Weinberg <zack@rabi.phys.columbia.edu> and H.J. Lu

	<hjl@gnu.org>:
	* ar.c (usage): Mention S modifier.
	(main): Add S modifier.
	* ar.1, binutils.texi: Document S modifier.

2 files changed, 33 insertions, 3 deletions

diff --git a/binutils/ar.1 b/binutils/ar.1
index a138e4a..e4e8cff 100644
--- a/binutils/ar.1
+++ b/binutils/ar.1
@@ -14,7 +14,7 @@ ar \- create, modify, and extract from archives.
 .hy 0
 .na
 .BR ar " [\|" "-" "\|]"\c
-.I {dmpqrtx}[abcilosuvV] \c
+.I {dmpqrtx}[abcilosSuvV] \c
 [\|\c
 .I membername\c
 \&\|] \c
@@ -215,6 +215,15 @@ index is not updated, even if it already existed; you can use `\|\c
 .B ranlib\c
 \& explicitly to update the symbol table index.
 
+However, too many different systems assume quick append rebuilds the
+index, so GNU
+.B ar
+implements `\|\c
+.B q\c
+\|' as a synonym for `\|\c
+.B r\c
+\|'.
+
 .TP
 .B r
 Insert \c
@@ -416,6 +425,19 @@ archive is equivalent to running `\|\c
 \|' on it.
 
 .TP
+.B S
+Do not generate an archive symbol table.  This can speed up building a
+large library in several steps.  The resulting archive can not be used
+with the linker.  In order to build a symbol table, you must omit the
+`\|\c
+.B S\c
+\|' modifier on the last execution of `\|\c
+.B ar\c
+\|', or you must run `\|\c
+.B ranlib\c
+\|' on the archive.
+
+.TP
 .B u
 Normally, \c
 .B ar r\c
diff --git a/binutils/binutils.texi b/binutils/binutils.texi
index 040df8f..ff6ecd3 100644
--- a/binutils/binutils.texi
+++ b/binutils/binutils.texi
@@ -279,8 +279,8 @@ Since the point of this operation is speed, the archive's symbol table
 index is not updated, even if it already existed; you can use @samp{ar s} or
 @code{ranlib} explicitly to update the symbol table index.
 
-However, too many different system assume quick append rebuilds the
-index, so GNU ar treats @code{q} to same way its treats @code{r}.
+However, too many different systems assume quick append rebuilds the
+index, so GNU ar implements @code{q} as a synonym for @code{r}.
 
 @item r
 @cindex replacement in archive
@@ -388,6 +388,14 @@ even if no other change is made to the archive.  You may use this modifier
 flag either with any operation, or alone.  Running @samp{ar s} on an
 archive is equivalent to running @samp{ranlib} on it.
 
+@item S
+@cindex not writing archive index
+Do not generate an archive symbol table.  This can speed up building a
+large library in several steps.  The resulting archive can not be used
+with the linker.  In order to build a symbol table, you must omit the
+@samp{S} modifier on the last execution of @samp{ar}, or you must run
+@samp{ranlib} on the archive.
+
 @item u
 @cindex updating an archive
 Normally, @samp{ar r}@dots{} inserts all files