From c93897a8d71b9b1790caf3b2dee38dbe62518ae3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Esser?= <besser82@fedoraproject.org>
Date: Thu, 24 Jun 2021 12:39:27 +0200
Subject: [PATCH] lib/defines.h: Include <crypt.h> if present on the system.
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The functions crypt(3), crypt_gensalt(3), and their
feature test macros may be defined in there.

Signed-off-by: Björn Esser <besser82@fedoraproject.org>
---
 configure.ac  |  2 +-
 lib/defines.h | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 111de09e..881c8382 100644
--- a/configure.ac
+++ b/configure.ac
@@ -42,7 +42,7 @@ AC_HEADER_STDC
 AC_HEADER_SYS_WAIT
 AC_HEADER_STDBOOL
 
-AC_CHECK_HEADERS(errno.h fcntl.h limits.h unistd.h sys/time.h utmp.h \
+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 \
 	gshadow.h lastlog.h locale.h rpc/key_prot.h netdb.h acl/libacl.h \
diff --git a/lib/defines.h b/lib/defines.h
index 2fb1b56e..e1500a76 100644
--- a/lib/defines.h
+++ b/lib/defines.h
@@ -4,6 +4,8 @@
 #ifndef _DEFINES_H_
 #define _DEFINES_H_
 
+#include "config.h"
+
 #if HAVE_STDBOOL_H
 # include <stdbool.h>
 #else
@@ -94,6 +96,14 @@ char *strchr (), *strrchr (), *strtok ();
 # include <unistd.h>
 #endif
 
+/*
+ * crypt(3), crypt_gensalt(3), and their
+ * feature test macros may be defined in here.
+ */
+#if HAVE_CRYPT_H
+# include <crypt.h>
+#endif
+
 #if TIME_WITH_SYS_TIME
 # include <sys/time.h>
 # include <time.h>