Add a warning flag for when the Prelude is implicitly imported (trac #1317)

[ghc-hetmet.git] / docs / users_guide / flags.xml

diff --git a/docs/users_guide/flags.xml b/docs/users_guide/flags.xml
index 48cf03a..8e18570 100644 (file)
--- a/docs/users_guide/flags.xml
+++ b/docs/users_guide/flags.xml
@@ -733,7 +733,7 @@
          </row>
          <row>
            <entry><option>-Wall</option></entry>
-           <entry>enable all warnings</entry>
+           <entry>enable almost all warnings (details in <xref linkend="options-sanity"/>)</entry>
            <entry>dynamic</entry>
            <entry><option>-w</option></entry>
          </row>
@@ -766,6 +766,13 @@
            <entry><option>-fno-warn-hi-shadowing</option></entry>
          </row>
 
+          <row>
+            <entry><option>-fwarn-implicit-prelude</option></entry>
+            <entry>warn when the Prelude is implicitly imported</entry>
+            <entry>dynamic</entry>
+            <entry><option>-fno-warn-implicit-prelude</option></entry>
+          </row>
+
          <row>
            <entry><option>-fwarn-incomplete-patterns</option></entry>
            <entry>warn when a pattern match could fail</entry>