configure.in: Check for system-provided 'uchar' type.

	* configure.in: Check for system-provided 'uchar' type.
	* configure, config.in: Regenerate.
	* cpphash.h: Only typedef 'uchar' if the system doesn't.

From-SVN: r61516

gcc/ChangeLog

 2003-01-20  Zack Weinberg  <zack@codesourcery.com>
 
 	* configure.in: Check for system-provided 'uchar' type.
-	* configure: Regenerate.
+	* configure, config.in: Regenerate.
 	* cpphash.h: Only typedef 'uchar' if the system doesn't.
 
 2003-01-20  Richard Henderson  <rth@redhat.com>

gcc/config.in

-/* config.in.  Generated automatically from configure.in by autoheader.  */
+/* config.in.  Generated automatically from configure.in by autoheader 2.13.  */
 
 /* Define if using alloca.c.  */
 #undef C_ALLOCA
@@ -498,6 +498,9 @@
 /* Define if <time.h> defines clock_t. */
 #undef HAVE_CLOCK_T
 
+/* Define if <sys/types.h> defines `uchar'. */
+#undef HAVE_UCHAR
+
 /* Define .init_array/.fini_array sections are available and working. */
 #undef HAVE_INITFINI_ARRAY
 

gcc/configure.in

@@ -792,6 +792,19 @@ if test $gcc_cv_type_clock_t = yes; then
   [Define if <time.h> defines clock_t.])
 fi
 
+AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
+[AC_TRY_COMPILE([
+#include "ansidecl.h"
+#include "system.h"
+], 
+[if ((uchar *)0) return 0;
+ if (sizeof(uchar)) return 0;],
+ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
+if test $ac_cv_type_uchar = yes; then
+  AC_DEFINE(HAVE_UCHAR, 1,
+  [Define if <sys/types.h> defines \`uchar'.])
+fi
+
 # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
 CFLAGS="$saved_CFLAGS"
 

gcc/cpphash.h

@@ -29,7 +29,9 @@ struct directive;		/* Deliberately incomplete.  */
 struct pending_option;
 struct op;
 
+#ifndef HAVE_UCHAR
 typedef unsigned char uchar;
+#endif
 #define U (const uchar *)  /* Intended use: U"string" */
 
 #define BITS_PER_CPPCHAR_T (CHAR_BIT * sizeof (cppchar_t))