From: Guus Sliepen <guus@tinc-vpn.org>
Date: Mon, 20 Jan 2020 20:12:17 +0000 (+0100)
Subject: Include stddef.h if available.
X-Git-Tag: release-1.1pre18~21
X-Git-Url: https://tinc-vpn.org/git/browse?a=commitdiff_plain;h=0cd2953d4136a72ddb38b54054f63d497b0e5526;p=tinc

Include stddef.h if available.

This is necessary to compile fd_device.c.
---

diff --git a/configure.ac b/configure.ac
index d593dadc..dc24f7c7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -168,7 +168,7 @@ AS_IF([test "x$enable_hardening" != "xno"],
 dnl Checks for header files.
 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
 
-AC_CHECK_HEADERS([syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h getopt.h])
+AC_CHECK_HEADERS([syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h sys/un.h sys/wait.h netdb.h arpa/inet.h dirent.h getopt.h stddef.h])
 AC_CHECK_HEADERS([net/if.h net/if_types.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h],
   [], [], [#include "$srcdir/src/have.h"]
 )
diff --git a/src/have.h b/src/have.h
index 402f8028..318d549f 100644
--- a/src/have.h
+++ b/src/have.h
@@ -57,6 +57,10 @@
 
 /* Include system specific headers */
 
+#ifdef HAVE_STDDEF_H
+#include <stddef.h>
+#endif
+
 #ifdef HAVE_SYSLOG_H
 #include <syslog.h>
 #endif