[libvirt] [PATCH] configure: Check for MSG_NOSIGNAL availability

The symbol being missing has been reported as causing build failures on OS X. Check for its availability before using it. --- See https://www.redhat.com/archives/libvir-list/2016-July/msg00613.html configure.ac | 4 ++++ src/util/virsystemd.c | 4 ++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/configure.ac b/configure.ac index 2c81c95..af5d2f8 100644 --- a/configure.ac +++ b/configure.ac @@ -402,6 +402,10 @@ AC_CHECK_TYPE([struct sockpeercred], [], [[#include <sys/socket.h> ]]) +AC_CHECK_DECLS([MSG_NOSIGNAL], + [], [], [[#include <sys/socket.h> + ]]) + AC_CHECK_DECLS([ETH_FLAG_TXVLAN, ETH_FLAG_NTUPLE, ETH_FLAG_RXHASH, ETH_FLAG_LRO, ETHTOOL_GGSO, ETHTOOL_GGRO, ETHTOOL_GFLAGS, ETHTOOL_GFEATURES], [], [], [[#include <linux/ethtool.h> diff --git a/src/util/virsystemd.c b/src/util/virsystemd.c index 969cd68..d2f4bfb 100644 --- a/src/util/virsystemd.c +++ b/src/util/virsystemd.c @@ -482,7 +482,7 @@ int virSystemdTerminateMachine(const char *name) void virSystemdNotifyStartup(void) { -#ifdef HAVE_SYS_UN_H +#if defined(HAVE_SYS_UN_H) && defined(HAVE_MSG_NOSIGNAL) const char *path; const char *msg = "READY=1"; int fd; @@ -526,7 +526,7 @@ virSystemdNotifyStartup(void) VIR_WARN("Failed to notify systemd"); VIR_FORCE_CLOSE(fd); -#endif /* HAVE_SYS_UN_H */ +#endif /* defined(HAVE_SYS_UN_H) && defined(HAVE_MSG_NOSIGNAL) */ } static int -- 2.7.4