From c4d9dcacc96376d3b605e81c063292b66ac35d8f Mon Sep 17 00:00:00 2001
From: Alejandro Colomar <alx@kernel.org>
Date: Fri, 2 Dec 2022 16:51:05 +0100
Subject: [PATCH] Assume <stdbool.h> exists
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ISO C99 requires <stdbool.h>.

Many files in the project already include <stdbool.h> unconditionally,
so it's reasonable to assume that it is always available.

Link: <https://github.com/shadow-maint/shadow/pull/600>
Cc: Christian Göttsche <cgzones@googlemail.com>
Cc: Iker Pedrosa <ipedrosa@redhat.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 configure.ac  |  2 --
 lib/defines.h | 16 +---------------
 2 files changed, 1 insertion(+), 17 deletions(-)

diff --git a/configure.ac b/configure.ac
index a22b47bd..c39da0f0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,8 +36,6 @@ LT_INIT
 dnl Checks for libraries.
 
 dnl Checks for header files.
-AC_HEADER_STDBOOL
-
 AC_CHECK_HEADERS(crypt.h errno.h fcntl.h limits.h unistd.h sys/time.h utmp.h \
 	utmpx.h termios.h termio.h sgtty.h sys/ioctl.h syslog.h paths.h \
 	utime.h ulimit.h sys/capability.h sys/random.h sys/resource.h \
diff --git a/lib/defines.h b/lib/defines.h
index 7950cdfa..a47f2571 100644
--- a/lib/defines.h
+++ b/lib/defines.h
@@ -6,21 +6,7 @@
 
 #include "config.h"
 
-#if HAVE_STDBOOL_H
-# include <stdbool.h>
-#else
-# if ! HAVE__BOOL
-#  ifdef __cplusplus
-typedef bool _Bool;
-#  else
-typedef unsigned char _Bool;
-#  endif
-# endif
-# define bool _Bool
-# define false (0)
-# define true  (1)
-# define __bool_true_false_are_defined 1
-#endif
+#include <stdbool.h>
 
 /* Take care of NLS matters.  */
 #ifdef S_SPLINT_S