m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC): Add more warnings.

[gnulib.git] / m4 / manywarnings.m4

diff --git a/m4/manywarnings.m4 b/m4/manywarnings.m4
index b0c413e..93b1315 100644 (file)
--- a/m4/manywarnings.m4
+++ b/m4/manywarnings.m4
@@ -90,5 +90,15 @@ AC_DEFUN([gl_MANYWARN_ALL_GCC],
   ; do
     gl_manywarn_set="$gl_manywarn_set $gl_manywarn_item"
   done
+ # The following are not documented in the manual but are included in
+ # output from gcc --help=warnings.
+ for gl_manywarn_item in \
+   -Wattributes \
+   -Wcoverage-mismatch \
+   -Wmultichar \
+   -Wunused-macros \
+  ; do
+    gl_manywarn_set="$gl_manywarn_set $gl_manywarn_item"
+  done
   $1=$gl_manywarn_set
 ])