aclocal.m4: Fixed typo.

        * aclocal.m4: Fixed typo.
        (gcc_AC_HEADER_STDBOOL): Define.
        (gcc_AC_C__BOOL): Define.
        * configure.in: Use them.
        (AC_CHECK_HEADERS): Remove stdbool.h
        * configure, config.in: Regenerate.

From-SVN: r42578

gcc/ChangeLog

+2001-05-25  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
+
+	* aclocal.m4: Fixed typo.
+	(gcc_AC_HEADER_STDBOOL): Define.
+	(gcc_AC_C__BOOL): Define.
+	* configure.in: Use them.
+	(AC_CHECK_HEADERS): Remove stdbool.h
+	* configure, config.in: Regenerate.
+
 2001-05-25  Richard Henderson  <rth@redhat.com>
 
 	* function.c (expand_function_start): Don't abort on PARALLEL

gcc/aclocal.m4

-Fdnl See whether we can include both string.h and strings.h.
+dnl See if stdbool.h properly defines bool and true/false.
+AC_DEFUN(gcc_AC_HEADER_STDBOOL,
+[AC_CACHE_CHECK([for working stdbool.h],
+  ac_cv_header_stdbool_h,
+[AC_TRY_COMPILE([#include <stdbool.h>],
+[bool foo = false;],
+ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
+if test $ac_cv_header_stdbool_h = yes; then
+  AC_DEFINE(HAVE_STDBOOL_H, 1,
+  [Define if you have a working <stdbool.h> header file.])
+fi
+])
+
+dnl See whether we can include both string.h and strings.h.
 AC_DEFUN(gcc_AC_HEADER_STRING,
 [AC_CACHE_CHECK([whether string.h and strings.h may both be included],
   gcc_cv_header_string,
@@ -197,6 +210,18 @@ if test $gcc_cv_c_long_double = yes; then
 fi
 ])
 
+dnl Check whether _Bool is built-in.
+AC_DEFUN(gcc_AC_C__BOOL,
+[AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
+[AC_TRY_COMPILE(,
+[_Bool foo;],
+gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
+])
+if test $gcc_cv_c__bool = yes; then
+  AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
+fi
+])
+
 dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
 dnl of the usual 2.
 AC_DEFUN(gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG,

gcc/config.in

@@ -221,9 +221,6 @@
 /* Define if you have the <nl_types.h> header file.  */
 #undef HAVE_NL_TYPES_H
 
-/* Define if you have the <stdbool.h> header file.  */
-#undef HAVE_STDBOOL_H
-
 /* Define if you have the <stddef.h> header file.  */
 #undef HAVE_STDDEF_H
 
@@ -305,6 +302,9 @@
 /* Define if your compiler supports the `__int64' type. */
 #undef HAVE___INT64
 
+/* Define if the `_Bool' type is built-in. */
+#undef HAVE__BOOL
+
 /* The number of bytes in type short */
 #undef SIZEOF_SHORT
 
@@ -326,6 +326,9 @@
 /* Always define this when using the GNU C Library */
 #undef _GNU_SOURCE
 
+/* Define if you have a working <stdbool.h> header file. */
+#undef HAVE_STDBOOL_H
+
 /* Define if you can safely include both <string.h> and <strings.h>. */
 #undef STRING_WITH_STRINGS
 

gcc/configure.in

@@ -366,6 +366,7 @@ gcc_AC_C_VOLATILE
 
 gcc_AC_C_LONG_DOUBLE
 gcc_AC_C_LONG_LONG
+gcc_AC_C__BOOL
 
 # sizeof(char) is 1 by definition.
 gcc_AC_COMPILE_CHECK_SIZEOF(short)
@@ -450,12 +451,13 @@ gcc_AC_PROG_INSTALL
 
 AC_HEADER_STDC
 AC_HEADER_TIME
+gcc_AC_HEADER_STDBOOL
 gcc_AC_HEADER_STRING
 AC_HEADER_SYS_WAIT
 AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
 		 fcntl.h unistd.h sys/file.h sys/time.h \
 		 sys/resource.h sys/param.h sys/times.h sys/stat.h \
-		 direct.h malloc.h langinfo.h iconv.h stdbool.h)
+		 direct.h malloc.h langinfo.h iconv.h)
 
 # Check for thread headers.
 AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])