c-lex.c (MULTIBYTE_CHARS): #undef if cross compiling.

	* c-lex.c (MULTIBYTE_CHARS): #undef if cross compiling.
	(yylex): Record wide strings using target endianness, not host.

From-SVN: r16315

gcc/ChangeLog

+Tue Nov  4 13:40:35 1997  Doug Evans  <devans@canuck.cygnus.com>
+
+	* c-lex.c (MULTIBYTE_CHARS): #undef if cross compiling.
+	(yylex): Record wide strings using target endianness, not host.
+
 Tue Nov  4 13:13:12 1997  Jeffrey A Law  (law@cygnus.com)
 
 	* mn10200.h (ASM_OUTPUT_BSS): Delete.

gcc/c-lex.c

@@ -35,6 +35,13 @@ Boston, MA 02111-1307, USA.  */
 
 #include <ctype.h>
 
+/* MULTIBYTE_CHARS support only works for native compilers.
+   ??? Ideally what we want is to model widechar support after
+   the current floating point support.  */
+#ifdef CROSS_COMPILE
+#undef MULTIBYTE_CHARS
+#endif
+
 #ifdef MULTIBYTE_CHARS
 #include <stdlib.h>
 #include <locale.h>
@@ -1999,15 +2006,9 @@ yylex ()
 	    bzero (widep + (len * WCHAR_BYTES), WCHAR_BYTES);
 #else
 	    {
-	      union { long l; char c[sizeof (long)]; } u;
-	      int big_endian;
 	      char *wp, *cp;
 
-	      /* Determine whether host is little or big endian.  */
-	      u.l = 1;
-	      big_endian = u.c[sizeof (long) - 1];
-	      wp = widep + (big_endian ? WCHAR_BYTES - 1 : 0);
-
+	      wp = widep + (BYTES_BIG_ENDIAN ? WCHAR_BYTES - 1 : 0);
 	      bzero (widep, (p - token_buffer) * WCHAR_BYTES);
 	      for (cp = token_buffer + 1; cp < p; cp++)
 		*wp = *cp, wp += WCHAR_BYTES;