From bc2cd89715155fe1fead19338dac5f4059917dfe Mon Sep 17 00:00:00 2001 From: Michael Forney Date: Thu, 20 Jun 2019 13:52:22 -0700 Subject: [PATCH] Provide fallback definition for __packed Otherwise, systems that don't support it will treat it as a name for a global `struct ntp_msg` variable. --- include/sys/types.h | 4 ++++ m4/check-os-options.m4 | 1 + 2 files changed, 5 insertions(+) diff --git a/include/sys/types.h b/include/sys/types.h index 86821c7..5492e20 100644 --- a/include/sys/types.h +++ b/include/sys/types.h @@ -22,6 +22,10 @@ # define __bounded__(x, y, z) #endif +#if !defined(HAVE_ATTRIBUTE__PACKED) && !defined(__packed) +# define __packed __attribute__((__packed__)) +#endif + /* * Define BSD-style unsigned bits types for systems that do not have them. */ diff --git a/m4/check-os-options.m4 b/m4/check-os-options.m4 index d4d02d9..4883d1f 100644 --- a/m4/check-os-options.m4 +++ b/m4/check-os-options.m4 @@ -69,6 +69,7 @@ case $host_os in HOST_ABI=elf AC_DEFINE([HAVE_ATTRIBUTE__BOUNDED__], [1], [OpenBSD gcc has bounded]) AC_DEFINE([HAVE_ATTRIBUTE__DEAD], [1], [OpenBSD gcc has __dead]) + AC_DEFINE([HAVE_ATTRIBUTE__PACKED], [1], [OpenBSD gcc has __packed]) ;; *solaris*) HOST_OS=solaris