Include stddef.h if available.

This is necessary to compile fd_device.c.

diff --git a/configure.ac b/configure.ac
index d593dad..dc24f7c 100644 (file)
--- 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 402f802..318d549 100644 (file)
--- 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