Fix strerror() handling for systems which set ANSI_STRING.

Don't print errors if "include" is specified with no arguments.
New test suite for the $(shell ...) function.

1 files changed, 3 insertions, 5 deletions

diff --git a/read.c b/read.c
index 024567a..a6e18b0 100644
--- a/read.c
+++ b/read.c
@@ -800,12 +800,10 @@ eval (struct ebuffer *ebuf, int set_default)
 	  int noerror = (p[0] != 'i');
 
 	  p = allocated_variable_expand (p2);
+
+          /* If no filenames, it's a no-op.  */
 	  if (*p == '\0')
-	    {
-	      error (fstart,
-                     _("no file name for `%sinclude'"), noerror ? "-" : "");
-	      continue;
-	    }
+            continue;
 
 	  /* Parse the list of file names.  */
 	  p2 = p;