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

        correctly.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@27432 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 11 insertions, 2 deletions

diff --git a/gcc/c-pragma.c b/gcc/c-pragma.c
index eedd0a13f0d..de9cfb899e5 100644
--- a/gcc/c-pragma.c
+++ b/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;