[PATCH] Document PSTL linker flags

[Thomas Rodgers]

         * doc/xml/manual/using.xml: Add PSTL linker flags to table 3.1.


>From eabe72642bf51b813f454c54ae3cc4e873cf34be Mon Sep 17 00:00:00 2001
From: Thomas Rodgers <trodg...@redhat.com>
Date: Tue, 23 Apr 2019 09:50:13 -0700
Subject: [PATCH] Document PSTL linker flags

	 * doc/xml/manual/using.xml: Add PSTL linker flags to table
           3.1.
---
 libstdc++-v3/doc/xml/manual/using.xml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libstdc++-v3/doc/xml/manual/using.xml b/libstdc++-v3/doc/xml/manual/using.xml
index 9e8fe0715a3..8e099d9c3d8 100644
--- a/libstdc++-v3/doc/xml/manual/using.xml
+++ b/libstdc++-v3/doc/xml/manual/using.xml
@@ -107,6 +107,15 @@
       <entry><literal>-fopenmp</literal></entry>
       <entry>For <link linkend="manual.ext.parallel_mode">parallel</link> mode.</entry>
     </row>
+    
+    <row>
+      <entry><literal>-ltbb</literal></entry>
+      <entry>Linking to tbb (Thread Building Blocks) is required for use of the
+        Parallel Standard Algorithms and execution policies in
+        <filename class="headerfile">&lt;execution&gt;</filename>.
+      </entry>
+    </row>
+    
   </tbody>
 
 </tgroup>
-- 
2.20.1