1 files changed, 6 insertions, 4 deletions

diff --git a/src/doc.c b/src/doc.c
index 25f6625d404..4cd43f0ae90 100644
--- a/src/doc.c
+++ b/src/doc.c
@@ -691,15 +691,17 @@ the same file name is found in the `doc-directory'.  */)
               if (fromfile[len-1] == 'c')
                 fromfile[len-1] = 'o';
 
-              if (EQ (Fmember (build_string (fromfile), Vbuild_files), Qnil))
-                skip_file = 1;
-              else
-                skip_file = 0;
+              skip_file = NILP (Fmember (build_string (fromfile),
+                                         Vbuild_files));
             }
 
           sym = oblookup (Vobarray, p + 2,
                           multibyte_chars_in_text (p + 2, end - p - 2),
                           end - p - 2);
+          /* Check skip_file so that when a function is defined several
+             times in different files (typically, once in xterm, once in
+             w32term, ...), we only pay attention to the one that
+             matters.  */
           if (! skip_file && SYMBOLP (sym))
             {
               /* Attach a docstring to a variable?  */