* category.h (CHAR_HAS_CATEGORY): Define as inline.

(CATEGORY_MEMBER): Enforce 1/0 value.
* category.c (_temp_category_set): Remove.

src/ChangeLog

+2012-06-16  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* category.h (CHAR_HAS_CATEGORY): Define as inline.
+	(CATEGORY_MEMBER): Enforce 1/0 value.
+	* category.c (_temp_category_set): Remove.
+
 2012-06-16  Eli Zaretskii  <eliz@gnu.org>
 
 	* window.c (Fdelete_other_windows_internal)

src/category.c

@@ -50,9 +50,6 @@ static int category_table_version;
 
 static Lisp_Object Qcategory_table, Qcategoryp, Qcategorysetp, Qcategory_table_p;
 
-/* Temporary internal variable used in macro CHAR_HAS_CATEGORY.  */
-Lisp_Object _temp_category_set;
-
 /* Make CATEGORY_SET includes (if VAL is t) or excludes (if VAL is
    nil) CATEGORY.  */
 #define SET_CATEGORY_SET(category_set, category, val) \

src/category.h

 /* Declarations having to do with Emacs category tables.
    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-     2005, 2006, 2007, 2008, 2009, 2010, 2011
+     2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
      National Institute of Advanced Industrial Science and Technology (AIST)
      Registration Number H14PRO021
    Copyright (C) 2003
@@ -69,27 +69,27 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define CHECK_CATEGORY_SET(x) \
   CHECK_TYPE (CATEGORY_SET_P (x), Qcategorysetp, x)
 
+/* Return the category set of character C in the current category table.  */
+#define CATEGORY_SET(c) char_category_set (c)
+
 /* Return 1 if CATEGORY_SET contains CATEGORY, else return 0.
    The faster version of `!NILP (Faref (category_set, category))'.  */
 #define CATEGORY_MEMBER(category, category_set)		 		\
-  (XCATEGORY_SET (category_set)->data[(category) / 8]			\
-   & (1 << ((category) % 8)))
-
-/* Temporary internal variable used in macro CHAR_HAS_CATEGORY.  */
-extern Lisp_Object _temp_category_set;
+  ((XCATEGORY_SET (category_set)->data[(category) / 8]			\
+    >> ((category) % 8)) & 1)
 
-/* Return 1 if category set of CH contains CATEGORY, elt return 0.  */
-#define CHAR_HAS_CATEGORY(ch, category)	\
-  (_temp_category_set = CATEGORY_SET (ch),	\
-   CATEGORY_MEMBER (category, _temp_category_set))
+/* Return 1 if category set of CH contains CATEGORY, else return 0.  */
+static inline int
+CHAR_HAS_CATEGORY (int ch, int category)
+{
+  Lisp_Object category_set = CATEGORY_SET (ch);
+  return CATEGORY_MEMBER (category, category_set);
+}
 
 /* The standard category table is stored where it will automatically
    be used in all new buffers.  */
 #define Vstandard_category_table BVAR (&buffer_defaults, category_table)
 
-/* Return the category set of character C in the current category table.  */
-#define CATEGORY_SET(c) char_category_set (c)
-
 /* Return the doc string of CATEGORY in category table TABLE.  */
 #define CATEGORY_DOCSTRING(table, category) \
   XVECTOR (Fchar_table_extra_slot (table, make_number (0)))->contents[(category) - ' ']