Open bentley opened 6 years ago
Clang-5.0.1 on OpenBSD complains when compiling dns.c:
cc -std=gnu99 -Wall -Wextra -O2 -g -fstack-protector -O2 -pipe -DDNS_DEBUG -DDNS_MAIN -o dns dns.c dns.c:383:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if HAVE___ATOMIC_FETCH_ADD && __GCC_ATOMIC_LONG_LOCK_FREE == 2 ^ dns.c:375:34: note: expanded from macro 'HAVE___ATOMIC_FETCH_ADD' #define HAVE___ATOMIC_FETCH_ADD (defined __ATOMIC_RELAXED) ^ dns.c:392:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if HAVE___ATOMIC_FETCH_SUB && __GCC_ATOMIC_LONG_LOCK_FREE == 2 ^ dns.c:379:33: note: expanded from macro 'HAVE___ATOMIC_FETCH_SUB' #define HAVE___ATOMIC_FETCH_SUB HAVE___ATOMIC_FETCH_ADD ^ dns.c:375:34: note: expanded from macro 'HAVE___ATOMIC_FETCH_ADD' #define HAVE___ATOMIC_FETCH_ADD (defined __ATOMIC_RELAXED) ^ dns.c:788:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if DNS_HAVE_SOCKADDR_UN ^ dns.c:782:31: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:788:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] dns.c:782:51: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:843:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if DNS_HAVE_SOCKADDR_UN ^ dns.c:782:31: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:843:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] dns.c:782:51: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:849:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if DNS_HAVE_SOCKADDR_UN ^ dns.c:782:31: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:849:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] dns.c:782:51: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:909:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if DNS_HAVE_SOCKADDR_UN ^ dns.c:782:31: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:909:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] dns.c:782:51: note: expanded from macro 'DNS_HAVE_SOCKADDR_UN' #define DNS_HAVE_SOCKADDR_UN (defined AF_UNIX && !defined _WIN32) ^ dns.c:6134:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if HAVE_SOCK_CLOEXEC ^ dns.c:6118:28: note: expanded from macro 'HAVE_SOCK_CLOEXEC' #define HAVE_SOCK_CLOEXEC (defined SOCK_CLOEXEC) ^ dns.c:6137:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if HAVE_SOCK_NONBLOCK ^ dns.c:6122:29: note: expanded from macro 'HAVE_SOCK_NONBLOCK' #define HAVE_SOCK_NONBLOCK (defined SOCK_NONBLOCK) ^ dns.c:6143:25: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if defined F_SETFD && !HAVE_SOCK_CLOEXEC ^ dns.c:6118:28: note: expanded from macro 'HAVE_SOCK_CLOEXEC' #define HAVE_SOCK_CLOEXEC (defined SOCK_CLOEXEC) ^ dns.c:6148:28: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if defined O_NONBLOCK && !HAVE_SOCK_NONBLOCK ^ dns.c:6122:29: note: expanded from macro 'HAVE_SOCK_NONBLOCK' #define HAVE_SOCK_NONBLOCK (defined SOCK_NONBLOCK) ^ dns.c:6206:26: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] #if (defined F_SETFD && !HAVE_SOCK_CLOEXEC) || (defined O_NONBLOCK && !H... ^ dns.c:6118:28: note: expanded from macro 'HAVE_SOCK_CLOEXEC' #define HAVE_SOCK_CLOEXEC (defined SOCK_CLOEXEC) ^ dns.c:6206:72: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined] ...F_SETFD && !HAVE_SOCK_CLOEXEC) || (defined O_NONBLOCK && !HAVE_SOCK_NONB... ^ dns.c:6122:29: note: expanded from macro 'HAVE_SOCK_NONBLOCK' #define HAVE_SOCK_NONBLOCK (defined SOCK_NONBLOCK) ^ 16 warnings generated.
Clang-5.0.1 on OpenBSD complains when compiling dns.c: