c-pragma.c (handle_pragma_token): Handle `#pragma pack()' correctly.

        * c-pragma.c (handle_pragma_token): Handle `#pragma pack()'
        correctly.

From-SVN: r27432

gcc/ChangeLog

+Wed Jun  9 03:10:34 1999  Mumit Khan  <khan@xraylith.wisc.edu>
+
+	* c-pragma.c (handle_pragma_token): Handle `#pragma pack()'
+	correctly.
+
 Tue Jun  8 13:06:15 1999  Jim Wilson  <wilson@cygnus.com>
 
 	* configure.in (rs6000-ibm-aix4.[12]*): Change rx6000 to rs6000.

gcc/c-pragma.c

@@ -383,8 +383,17 @@ handle_pragma_token (string, token)
     case ps_left:
 
       if (token == NULL_TREE)
-	state = (strcmp (string, ")") ? ps_bad : ps_right);
-
+	{
+	  /* #pragma pack () resets packing rules to their
+	     defaults.  */
+	  if (strcmp (string, ")") == 0)
+	    {
+	      align = 0;
+	      state = ps_right;
+	    }
+	  else
+	    state = ps_bad;
+	}
       else if (TREE_CODE (token) == INTEGER_CST)
 	goto handle_align;