]> granicus.if.org Git - strace/blobdiff - configure.ac
io.c: move sendfile parsers to a separate file
[strace] / configure.ac
index 39832ef130aa12a972b812135c61180200951935..0819f8390cba4ae279c1dfa6bcef60cb76bf7118 100644 (file)
@@ -11,6 +11,7 @@ AM_MAINTAINER_MODE
 AC_CANONICAL_HOST
 
 AC_PROG_CC
+AX_PROG_CC_FOR_BUILD
 AC_USE_SYSTEM_EXTENSIONS
 
 AC_MSG_CHECKING([for supported architecture])
@@ -52,13 +53,12 @@ alpha*)
        AC_DEFINE([ALPHA], 1, [Define for the Alpha architecture.])
        ;;
 powerpc*)
-       arch=powerpc
        AC_DEFINE([POWERPC], 1, [Define for the PowerPC architecture.])
        AC_TRY_COMPILE(
 [#ifndef __LP64__
 # error 32 bit
-#endif], [], ppc_bits=64, ppc_bits=32)
-       if test "$ppc_bits" = "64"; then
+#endif], [], arch=powerpc64, arch=powerpc)
+       if test "$arch" = "powerpc64"; then
                AC_DEFINE([POWERPC64], 1, [Define for the PowerPC64 architecture.])
        fi
        ;;
@@ -125,6 +125,11 @@ microblaze*)
        arch=microblaze
        AC_DEFINE([MICROBLAZE], 1, [Define for the MicroBlaze architecture.])
        ;;
+nios2*)
+       arch=nios2
+       AC_DEFINE([NIOS2], 1, [Define for the Nios-II architecture.])
+       ;;
+
 or1k*)
        arch=or1k
        AC_DEFINE([OR1K], 1, [Define for the OpenRISC 1000 architecture.])
@@ -144,14 +149,50 @@ AC_MSG_RESULT($arch)
 
 AC_SUBST(arch)
 
-AM_CONDITIONAL([I386], [test x$arch = xi386])
-AM_CONDITIONAL([X86_64], [test x$arch = xx86_64])
-AM_CONDITIONAL([X32], [test x$arch = xx32])
+if test "$arch" = mips; then
+       AC_CACHE_CHECK([for _MIPS_SIM], [st_cv__MIPS_SIM],
+                      [AC_COMPUTE_INT([st_cv__MIPS_SIM], [_MIPS_SIM],
+                                      [#include <sgidefs.h>],
+                                      [AC_MSG_ERROR([_MIPS_SIM cannot be determined])])])
+
+       AC_CACHE_CHECK([for MIPS ABI], [st_cv_mips_abi],
+               [AC_COMPILE_IFELSE(
+                       [AC_LANG_PROGRAM([[#include <sgidefs.h>]],
+                                        [[int i[_MIPS_SIM == _MIPS_SIM_ABI32 ? 1 : - 1];]])],
+                       [st_cv_mips_abi=o32],
+               [AC_COMPILE_IFELSE(
+                       [AC_LANG_PROGRAM([[#include <sgidefs.h>]],
+                                        [[int i[_MIPS_SIM == _MIPS_SIM_NABI32 ? 1 : - 1];]])],
+                       [st_cv_mips_abi=n32],
+               [AC_COMPILE_IFELSE(
+                       [AC_LANG_PROGRAM([[#include <sgidefs.h>]],
+                                        [[int i[_MIPS_SIM == _MIPS_SIM_ABI64 ? 1 : - 1];]])],
+                       [st_cv_mips_abi=n64],
+                       [st_cv_mips_abi=unknown])])])])
 
-AC_INCLUDEDIR
+       case "$st_cv_mips_abi" in
+               o32) AC_DEFINE([LINUX_MIPSO32], [1], [Define for _MIPS_SIM_ABI32.]);;
+               n32) AC_DEFINE([LINUX_MIPSN32], [1], [Define for _MIPS_SIM_NABI32.]);;
+               n64) AC_DEFINE([LINUX_MIPSN64], [1], [Define for _MIPS_SIM_ABI64.]);;
+               *) AC_MSG_ERROR([Unsupported _MIPS_SIM]);;
+       esac
+fi
+
+AC_ARG_ENABLE([arm-oabi],
+             [AS_HELP_STRING([--enable-arm-oabi],
+                             [enable OABI support on ARM EABI])],
+             [], [enable_arm_oabi=no])
+case "$enable_arm_oabi" in
+       yes) enable_arm_oabi=1 ;;
+       no) enable_arm_oabi=0 ;;
+       *) AC_MSG_ERROR([bad value $enable_arm_oabi for arm-oabi option]) ;;
+esac
+AC_DEFINE_UNQUOTED([ENABLE_ARM_OABI], [$enable_arm_oabi],
+                  [Define to 1 if you want OABI support on ARM EABI.])
 
 gl_WARN_ADD([-Wall])
 gl_WARN_ADD([-Wwrite-strings])
+gl_WARN_ADD([-Wsign-compare])
 AC_ARG_ENABLE([gcc-Werror],
   [AS_HELP_STRING([--enable-gcc-Werror], [turn on gcc's -Werror option])],
   [case $enableval in
@@ -171,24 +212,23 @@ AC_HEADER_STDBOOL
 AC_HEADER_DIRENT
 AC_HEADER_STAT
 AC_CHECK_MEMBERS(m4_normalize([
-       struct stat.st_aclcnt,
+       struct stat.st_atim.tv_nsec,
        struct stat.st_blksize,
        struct stat.st_blocks,
+       struct stat.st_ctim.tv_nsec,
        struct stat.st_flags,
        struct stat.st_fstype,
        struct stat.st_gen,
-       struct stat.st_level,
+       struct stat.st_mtim.tv_nsec,
        struct stat.st_rdev
 ]))
-AC_STAT64
-AC_STATFS64
 
 AC_TYPE_SIGNAL
 AC_TYPE_UID_T
 AC_TYPE_MODE_T
 AC_TYPE_GETGROUPS
 AC_HEADER_MAJOR
-AC_CHECK_TYPES([sig_atomic_t, siginfo_t],,, [#include <signal.h>])
+AC_CHECK_TYPES([sig_atomic_t],,, [#include <signal.h>])
 AC_CHECK_MEMBERS([struct sockaddr_in6.sin6_scope_id],,,
 [#include <sys/types.h>
 #include <sys/socket.h>
@@ -196,15 +236,22 @@ AC_CHECK_MEMBERS([struct sockaddr_in6.sin6_scope_id],,,
 AC_LITTLE_ENDIAN_LONG_LONG
 
 AC_CHECK_FUNCS(m4_normalize([
+       fanotify_mark
        fopen64
        fork
        fputs_unlocked
        if_indextoname
        inet_ntop
+       inet_pton
+       pipe2
        prctl
+       preadv
        process_vm_readv
+       pwritev
        sendmsg
+       sendmmsg
        sigaction
+       signalfd
        stpcpy
        strerror
        strsignal
@@ -212,29 +259,32 @@ AC_CHECK_FUNCS(m4_normalize([
 AC_CHECK_HEADERS(m4_normalize([
        asm/cachectl.h
        asm/sysmips.h
+       bluetooth/bluetooth.h
        elf.h
        inttypes.h
        ioctls.h
-       linux/capability.h
+       linux/bsg.h
+       linux/falloc.h
+       linux/filter.h
+       linux/hiddev.h
+       linux/mmtimer.h
        linux/perf_event.h
-       linux/ptrace.h
+       linux/seccomp.h
+       linux/securebits.h
        linux/utsname.h
        mqueue.h
        netinet/sctp.h
-       poll.h
        scsi/sg.h
        stropts.h
-       sys/acl.h
-       sys/asynch.h
        sys/conf.h
        sys/epoll.h
-       sys/filio.h
+       sys/eventfd.h
+       sys/fanotify.h
        sys/ioctl.h
-       sys/poll.h
-       sys/ptrace.h
        sys/reg.h
-       sys/uio.h
+       sys/signalfd.h
        sys/vfs.h
+       sys/xattr.h
 ]))
 AC_CHECK_HEADERS([linux/icmp.h linux/in6.h linux/netlink.h linux/if_packet.h],
                  [], [], [#include <stddef.h>
@@ -244,49 +294,443 @@ AC_CHECK_HEADERS([asm/sigcontext.h], [], [], [#include <signal.h>])
 AC_CHECK_TYPES([struct sigcontext],,, [#include <signal.h>])
 AC_CHECK_HEADERS([netinet/tcp.h netinet/udp.h],,, [#include <netinet/in.h>])
 
+AC_CHECK_TYPES([struct mmsghdr],,, [#include <sys/socket.h>])
 AC_CHECK_MEMBERS([struct msghdr.msg_control],,, [#include <sys/socket.h>])
 
+AC_CHECK_MEMBERS(m4_normalize([
+       struct stat.st_atime_nsec,
+       struct stat.st_ctime_nsec,
+       struct stat.st_mtime_nsec
+]),,, [#include <sys/types.h>
+#include <asm/stat.h>])
+
+AC_CHECK_TYPES([struct stat64],,, [#include <sys/types.h>
+#include <asm/stat.h>])
 AC_CHECK_TYPES([struct __old_kernel_stat],,, [#include <asm/stat.h>])
+AC_CHECK_TYPES([struct statfs64],,, [#include <sys/vfs.h>])
 
 AC_CHECK_TYPES([struct pt_all_user_regs, struct ia64_fpreg, struct ptrace_peeksiginfo_args],,,
               [#include <sys/ptrace.h>])
 
-AC_CHECK_TYPES([struct user_desc],,, [#include <asm/ldt.h>])
-
 AC_CHECK_MEMBERS([struct utsname.domainname],,, [#include <sys/utsname.h>])
 
 AC_CHECK_MEMBERS([struct sigevent._sigev_un._pad,
                  struct sigevent.__pad,
-                 siginfo_t.si_syscall],,, [#include <signal.h>])
+                 siginfo_t.si_syscall,
+                 siginfo_t.si_timerid,
+                 siginfo_t.si_overrun],,, [#include <signal.h>])
 
 AC_CHECK_TYPES([struct flock64],,, [#include <fcntl.h>])
 
+AC_CHECK_HEADERS([libaio.h], [
+       AC_CHECK_MEMBERS([struct iocb.u.c.flags],,, [#include <libaio.h>])
+       AC_CHECK_DECLS([IO_CMD_PWRITE, IO_CMD_PWRITEV],,, [#include <libaio.h>])
+])
+
+AC_CHECK_HEADERS([linux/input.h], [
+       AC_CHECK_MEMBERS([struct input_absinfo.resolution],,, [#include <linux/input.h>])
+])
+
+AC_CHECK_HEADERS([linux/bpf.h], [
+       AC_CACHE_CHECK([whether union bpf_attr.log_buf initialization works],
+                      [st_cv_have_union_bpf_attr_log_buf],
+               [AC_COMPILE_IFELSE(
+                       [AC_LANG_PROGRAM([[#include <linux/bpf.h>]],
+                                        [[union bpf_attr a = { .log_buf = 0 };]])],
+                       [st_cv_have_union_bpf_attr_log_buf=yes],
+                       [st_cv_have_union_bpf_attr_log_buf=no])])
+       if test $st_cv_have_union_bpf_attr_log_buf = yes; then
+               AC_DEFINE(HAVE_UNION_BPF_ATTR_LOG_BUF, [1],
+                         [Define to 1 if union bpf_attr.log_buf initialization works])
+       fi
+])
+
 AC_CHECK_DECLS([sys_errlist])
 AC_CHECK_DECLS(m4_normalize([
-       PTRACE_EVENT_CLONE,
-       PTRACE_EVENT_EXEC,
-       PTRACE_EVENT_EXIT,
-       PTRACE_EVENT_FORK,
-       PTRACE_EVENT_VFORK,
-       PTRACE_EVENT_VFORK_DONE,
-       PTRACE_GETEVENTMSG,
-       PTRACE_GETSIGINFO,
-       PTRACE_O_TRACECLONE,
-       PTRACE_O_TRACEEXEC,
-       PTRACE_O_TRACEEXIT,
-       PTRACE_O_TRACEFORK,
-       PTRACE_O_TRACESYSGOOD,
-       PTRACE_O_TRACEVFORK,
        PTRACE_PEEKUSER,
-       PTRACE_POKEUSER,
-       PTRACE_SETOPTIONS
+       PTRACE_POKEUSER
 ]),,, [#include <sys/ptrace.h>])
 
 AC_CHECK_DECLS(m4_normalize([
+       P_PID,
+       P_PPID,
+       P_PGID,
+       P_SID,
+       P_CID,
+       P_UID,
+       P_GID,
+       P_ALL,
+       P_LWPID
+]),,, [#include <sys/wait.h>])
+
+AC_CHECK_DECLS(m4_normalize([
+       LO_FLAGS_READ_ONLY,
        LO_FLAGS_AUTOCLEAR,
        LO_FLAGS_PARTSCAN
 ]),,, [#include <linux/loop.h>])
 
+AC_CHECK_DECLS(m4_normalize([
+       CTL_KERN,
+       CTL_VM,
+       CTL_NET,
+       CTL_PROC,
+       CTL_FS,
+       CTL_DEBUG,
+       CTL_DEV,
+       CTL_BUS,
+       CTL_ABI,
+       CTL_CPU,
+       CTL_ARLAN,
+       CTL_S390DBF,
+       CTL_SUNRPC,
+       CTL_PM,
+       CTL_FRV,
+       KERN_OSTYPE,
+       KERN_OSRELEASE,
+       KERN_OSREV,
+       KERN_VERSION,
+       KERN_SECUREMASK,
+       KERN_PROF,
+       KERN_NODENAME,
+       KERN_DOMAINNAME,
+       KERN_PANIC,
+       KERN_REALROOTDEV,
+       KERN_SPARC_REBOOT,
+       KERN_CTLALTDEL,
+       KERN_PRINTK,
+       KERN_NAMETRANS,
+       KERN_PPC_HTABRECLAIM,
+       KERN_PPC_ZEROPAGED,
+       KERN_PPC_POWERSAVE_NAP,
+       KERN_MODPROBE,
+       KERN_SG_BIG_BUFF,
+       KERN_ACCT,
+       KERN_PPC_L2CR,
+       KERN_RTSIGNR,
+       KERN_RTSIGMAX,
+       KERN_SHMMAX,
+       KERN_MSGMAX,
+       KERN_MSGMNB,
+       KERN_MSGPOOL,
+       KERN_SYSRQ,
+       KERN_MAX_THREADS,
+       KERN_RANDOM,
+       KERN_SHMALL,
+       KERN_MSGMNI,
+       KERN_SEM,
+       KERN_SPARC_STOP_A,
+       KERN_SHMMNI,
+       KERN_OVERFLOWUID,
+       KERN_OVERFLOWGID,
+       KERN_SHMPATH,
+       KERN_HOTPLUG,
+       KERN_IEEE_EMULATION_WARNINGS,
+       KERN_S390_USER_DEBUG_LOGGING,
+       KERN_CORE_USES_PID,
+       KERN_TAINTED,
+       KERN_CADPID,
+       KERN_PIDMAX,
+       KERN_CORE_PATTERN,
+       KERN_PANIC_ON_OOPS,
+       KERN_HPPA_PWRSW,
+       KERN_HPPA_UNALIGNED,
+       KERN_PRINTK_RATELIMIT,
+       KERN_PRINTK_RATELIMIT_BURST,
+       KERN_PTY,
+       KERN_NGROUPS_MAX,
+       KERN_SPARC_SCONS_PWROFF,
+       KERN_HZ_TIMER,
+       KERN_UNKNOWN_NMI_PANIC,
+       KERN_BOOTLOADER_TYPE,
+       KERN_RANDOMIZE,
+       KERN_SETUID_DUMPABLE,
+       KERN_SPIN_RETRY,
+       KERN_ACPI_VIDEO_FLAGS,
+       KERN_IA64_UNALIGNED,
+       KERN_COMPAT_LOG,
+       KERN_MAX_LOCK_DEPTH,
+       KERN_NMI_WATCHDOG,
+       KERN_PANIC_ON_NMI,
+       NET_CORE,
+       NET_ETHER,
+       NET_802,
+       NET_UNIX,
+       NET_IPV4,
+       NET_IPX,
+       NET_ATALK,
+       NET_NETROM,
+       NET_AX25,
+       NET_BRIDGE,
+       NET_ROSE,
+       NET_IPV6,
+       NET_X25,
+       NET_TR,
+       NET_DECNET,
+       NET_ECONET,
+       NET_SCTP,
+       NET_LLC,
+       NET_NETFILTER,
+       NET_DCCP,
+       NET_IRDA,
+       NET_CORE_WMEM_MAX,
+       NET_CORE_RMEM_MAX,
+       NET_CORE_WMEM_DEFAULT,
+       NET_CORE_RMEM_DEFAULT,
+       NET_CORE_DESTROY_DELAY,
+       NET_CORE_MAX_BACKLOG,
+       NET_CORE_FASTROUTE,
+       NET_CORE_MSG_COST,
+       NET_CORE_MSG_BURST,
+       NET_CORE_OPTMEM_MAX,
+       NET_CORE_HOT_LIST_LENGTH,
+       NET_CORE_DIVERT_VERSION,
+       NET_CORE_NO_CONG_THRESH,
+       NET_CORE_NO_CONG,
+       NET_CORE_LO_CONG,
+       NET_CORE_MOD_CONG,
+       NET_CORE_DEV_WEIGHT,
+       NET_CORE_SOMAXCONN,
+       NET_CORE_BUDGET,
+       NET_CORE_AEVENT_ETIME,
+       NET_CORE_AEVENT_RSEQTH,
+       NET_CORE_WARNINGS,
+       NET_IPV4_FORWARD,
+       NET_IPV4_DYNADDR,
+       NET_IPV4_CONF,
+       NET_IPV4_NEIGH,
+       NET_IPV4_ROUTE,
+       NET_IPV4_FIB_HASH,
+       NET_IPV4_NETFILTER,
+       NET_IPV4_TCP_TIMESTAMPS,
+       NET_IPV4_TCP_WINDOW_SCALING,
+       NET_IPV4_TCP_SACK,
+       NET_IPV4_TCP_RETRANS_COLLAPSE,
+       NET_IPV4_DEFAULT_TTL,
+       NET_IPV4_AUTOCONFIG,
+       NET_IPV4_NO_PMTU_DISC,
+       NET_IPV4_TCP_SYN_RETRIES,
+       NET_IPV4_IPFRAG_HIGH_THRESH,
+       NET_IPV4_IPFRAG_LOW_THRESH,
+       NET_IPV4_IPFRAG_TIME,
+       NET_IPV4_TCP_MAX_KA_PROBES,
+       NET_IPV4_TCP_KEEPALIVE_TIME,
+       NET_IPV4_TCP_KEEPALIVE_PROBES,
+       NET_IPV4_TCP_RETRIES1,
+       NET_IPV4_TCP_RETRIES2,
+       NET_IPV4_TCP_FIN_TIMEOUT,
+       NET_IPV4_IP_MASQ_DEBUG,
+       NET_TCP_SYNCOOKIES,
+       NET_TCP_STDURG,
+       NET_TCP_RFC1337,
+       NET_TCP_SYN_TAILDROP,
+       NET_TCP_MAX_SYN_BACKLOG,
+       NET_IPV4_LOCAL_PORT_RANGE,
+       NET_IPV4_ICMP_ECHO_IGNORE_ALL,
+       NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS,
+       NET_IPV4_ICMP_SOURCEQUENCH_RATE,
+       NET_IPV4_ICMP_DESTUNREACH_RATE,
+       NET_IPV4_ICMP_TIMEEXCEED_RATE,
+       NET_IPV4_ICMP_PARAMPROB_RATE,
+       NET_IPV4_ICMP_ECHOREPLY_RATE,
+       NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES,
+       NET_IPV4_IGMP_MAX_MEMBERSHIPS,
+       NET_TCP_TW_RECYCLE,
+       NET_IPV4_ALWAYS_DEFRAG,
+       NET_IPV4_TCP_KEEPALIVE_INTVL,
+       NET_IPV4_INET_PEER_THRESHOLD,
+       NET_IPV4_INET_PEER_MINTTL,
+       NET_IPV4_INET_PEER_MAXTTL,
+       NET_IPV4_INET_PEER_GC_MINTIME,
+       NET_IPV4_INET_PEER_GC_MAXTIME,
+       NET_TCP_ORPHAN_RETRIES,
+       NET_TCP_ABORT_ON_OVERFLOW,
+       NET_TCP_SYNACK_RETRIES,
+       NET_TCP_MAX_ORPHANS,
+       NET_TCP_MAX_TW_BUCKETS,
+       NET_TCP_FACK,
+       NET_TCP_REORDERING,
+       NET_TCP_ECN,
+       NET_TCP_DSACK,
+       NET_TCP_MEM,
+       NET_TCP_WMEM,
+       NET_TCP_RMEM,
+       NET_TCP_APP_WIN,
+       NET_TCP_ADV_WIN_SCALE,
+       NET_IPV4_NONLOCAL_BIND,
+       NET_IPV4_ICMP_RATELIMIT,
+       NET_IPV4_ICMP_RATEMASK,
+       NET_TCP_TW_REUSE,
+       NET_TCP_FRTO,
+       NET_TCP_LOW_LATENCY,
+       NET_IPV4_IPFRAG_SECRET_INTERVAL,
+       NET_IPV4_IGMP_MAX_MSF,
+       NET_TCP_NO_METRICS_SAVE,
+       NET_TCP_DEFAULT_WIN_SCALE,
+       NET_TCP_MODERATE_RCVBUF,
+       NET_TCP_TSO_WIN_DIVISOR,
+       NET_TCP_BIC_BETA,
+       NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR,
+       NET_TCP_CONG_CONTROL,
+       NET_TCP_ABC,
+       NET_IPV4_IPFRAG_MAX_DIST,
+       NET_TCP_MTU_PROBING,
+       NET_TCP_BASE_MSS,
+       NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS,
+       NET_TCP_DMA_COPYBREAK,
+       NET_TCP_SLOW_START_AFTER_IDLE,
+       NET_CIPSOV4_CACHE_ENABLE,
+       NET_CIPSOV4_CACHE_BUCKET_SIZE,
+       NET_CIPSOV4_RBM_OPTFMT,
+       NET_CIPSOV4_RBM_STRICTVALID,
+       NET_TCP_AVAIL_CONG_CONTROL,
+       NET_TCP_ALLOWED_CONG_CONTROL,
+       NET_TCP_MAX_SSTHRESH,
+       NET_TCP_FRTO_RESPONSE,
+       NET_IPV4_ROUTE_FLUSH,
+       NET_IPV4_ROUTE_MIN_DELAY,
+       NET_IPV4_ROUTE_MAX_DELAY,
+       NET_IPV4_ROUTE_GC_THRESH,
+       NET_IPV4_ROUTE_MAX_SIZE,
+       NET_IPV4_ROUTE_GC_MIN_INTERVAL,
+       NET_IPV4_ROUTE_GC_TIMEOUT,
+       NET_IPV4_ROUTE_GC_INTERVAL,
+       NET_IPV4_ROUTE_REDIRECT_LOAD,
+       NET_IPV4_ROUTE_REDIRECT_NUMBER,
+       NET_IPV4_ROUTE_REDIRECT_SILENCE,
+       NET_IPV4_ROUTE_ERROR_COST,
+       NET_IPV4_ROUTE_ERROR_BURST,
+       NET_IPV4_ROUTE_GC_ELASTICITY,
+       NET_IPV4_ROUTE_MTU_EXPIRES,
+       NET_IPV4_ROUTE_MIN_PMTU,
+       NET_IPV4_ROUTE_MIN_ADVMSS,
+       NET_IPV4_ROUTE_SECRET_INTERVAL,
+       NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS,
+       NET_IPV4_CONF_FORWARDING,
+       NET_IPV4_CONF_MC_FORWARDING,
+       NET_IPV4_CONF_PROXY_ARP,
+       NET_IPV4_CONF_ACCEPT_REDIRECTS,
+       NET_IPV4_CONF_SECURE_REDIRECTS,
+       NET_IPV4_CONF_SEND_REDIRECTS,
+       NET_IPV4_CONF_SHARED_MEDIA,
+       NET_IPV4_CONF_RP_FILTER,
+       NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE,
+       NET_IPV4_CONF_BOOTP_RELAY,
+       NET_IPV4_CONF_LOG_MARTIANS,
+       NET_IPV4_CONF_TAG,
+       NET_IPV4_CONF_ARPFILTER,
+       NET_IPV4_CONF_MEDIUM_ID,
+       NET_IPV4_CONF_NOXFRM,
+       NET_IPV4_CONF_NOPOLICY,
+       NET_IPV4_CONF_FORCE_IGMP_VERSION,
+       NET_IPV4_CONF_ARP_ANNOUNCE,
+       NET_IPV4_CONF_ARP_IGNORE,
+       NET_IPV4_CONF_PROMOTE_SECONDARIES,
+       NET_IPV4_CONF_ARP_ACCEPT,
+       NET_IPV4_CONF_ARP_NOTIFY,
+       NET_IPV6_CONF,
+       NET_IPV6_NEIGH,
+       NET_IPV6_ROUTE,
+       NET_IPV6_ICMP,
+       NET_IPV6_BINDV6ONLY,
+       NET_IPV6_IP6FRAG_HIGH_THRESH,
+       NET_IPV6_IP6FRAG_LOW_THRESH,
+       NET_IPV6_IP6FRAG_TIME,
+       NET_IPV6_IP6FRAG_SECRET_INTERVAL,
+       NET_IPV6_MLD_MAX_MSF,
+       NET_IPV6_ROUTE_FLUSH,
+       NET_IPV6_ROUTE_GC_THRESH,
+       NET_IPV6_ROUTE_MAX_SIZE,
+       NET_IPV6_ROUTE_GC_MIN_INTERVAL,
+       NET_IPV6_ROUTE_GC_TIMEOUT,
+       NET_IPV6_ROUTE_GC_INTERVAL,
+       NET_IPV6_ROUTE_GC_ELASTICITY,
+       NET_IPV6_ROUTE_MTU_EXPIRES,
+       NET_IPV6_ROUTE_MIN_ADVMSS,
+       NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS,
+       NET_UNIX_DESTROY_DELAY,
+       NET_UNIX_DELETE_DELAY,
+       NET_UNIX_MAX_DGRAM_QLEN,
+       VM_OVERCOMMIT_MEMORY,
+       VM_PAGE_CLUSTER,
+       VM_DIRTY_BACKGROUND,
+       VM_DIRTY_RATIO,
+       VM_DIRTY_WB_CS,
+       VM_DIRTY_EXPIRE_CS,
+       VM_NR_PDFLUSH_THREADS,
+       VM_OVERCOMMIT_RATIO,
+       VM_PAGEBUF,
+       VM_HUGETLB_PAGES,
+       VM_SWAPPINESS,
+       VM_LOWMEM_RESERVE_RATIO,
+       VM_MIN_FREE_KBYTES,
+       VM_MAX_MAP_COUNT,
+       VM_LAPTOP_MODE,
+       VM_BLOCK_DUMP,
+       VM_HUGETLB_GROUP,
+       VM_VFS_CACHE_PRESSURE,
+       VM_LEGACY_VA_LAYOUT,
+       VM_SWAP_TOKEN_TIMEOUT
+]),,,
+[#include <sys/types.h>
+#include <linux/sysctl.h>])
+
+AC_CHECK_DECLS(m4_normalize([
+       V4L2_FIELD_ANY,
+       V4L2_FIELD_NONE,
+       V4L2_FIELD_TOP,
+       V4L2_FIELD_BOTTOM,
+       V4L2_FIELD_INTERLACED,
+       V4L2_FIELD_SEQ_TB,
+       V4L2_FIELD_SEQ_BT,
+       V4L2_FIELD_ALTERNATE,
+       V4L2_FIELD_INTERLACED_TB,
+       V4L2_FIELD_INTERLACED_BT,
+       V4L2_BUF_TYPE_VIDEO_CAPTURE,
+       V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
+       V4L2_BUF_TYPE_VIDEO_OUTPUT,
+       V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+       V4L2_BUF_TYPE_VIDEO_OVERLAY,
+       V4L2_BUF_TYPE_VBI_CAPTURE,
+       V4L2_BUF_TYPE_VBI_OUTPUT,
+       V4L2_BUF_TYPE_SLICED_VBI_CAPTURE,
+       V4L2_BUF_TYPE_SLICED_VBI_OUTPUT,
+       V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY,
+       V4L2_TUNER_RADIO,
+       V4L2_TUNER_ANALOG_TV,
+       V4L2_TUNER_DIGITAL_TV,
+       V4L2_MEMORY_MMAP,
+       V4L2_MEMORY_USERPTR,
+       V4L2_MEMORY_OVERLAY,
+       V4L2_MEMORY_DMABUF,
+       V4L2_COLORSPACE_SMPTE170M,
+       V4L2_COLORSPACE_SMPTE240M,
+       V4L2_COLORSPACE_REC709,
+       V4L2_COLORSPACE_BT878,
+       V4L2_COLORSPACE_470_SYSTEM_M,
+       V4L2_COLORSPACE_470_SYSTEM_BG,
+       V4L2_COLORSPACE_JPEG,
+       V4L2_COLORSPACE_SRGB,
+       V4L2_PRIORITY_UNSET,
+       V4L2_PRIORITY_BACKGROUND,
+       V4L2_PRIORITY_INTERACTIVE,
+       V4L2_PRIORITY_RECORD,
+       V4L2_FRMSIZE_TYPE_DISCRETE,
+       V4L2_FRMSIZE_TYPE_CONTINUOUS,
+       V4L2_FRMSIZE_TYPE_STEPWISE,
+       V4L2_FRMIVAL_TYPE_DISCRETE,
+       V4L2_FRMIVAL_TYPE_CONTINUOUS,
+       V4L2_FRMIVAL_TYPE_STEPWISE,
+       V4L2_CTRL_TYPE_INTEGER,
+       V4L2_CTRL_TYPE_BOOLEAN,
+       V4L2_CTRL_TYPE_MENU,
+       V4L2_CTRL_TYPE_BUTTON,
+       V4L2_CTRL_TYPE_INTEGER64,
+       V4L2_CTRL_TYPE_CTRL_CLASS,
+       V4L2_CTRL_TYPE_STRING,
+       V4L2_CTRL_TYPE_BITMASK,
+       V4L2_CTRL_TYPE_INTEGER_MENU
+]),,, [#include <linux/videodev2.h>])
+
 AC_CACHE_CHECK([for BLKGETSIZE64], [ac_cv_have_blkgetsize64],
        [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
 #include <stdlib.h>
@@ -299,15 +743,24 @@ AC_CACHE_CHECK([for BLKGETSIZE64], [ac_cv_have_blkgetsize64],
 AC_CHECK_SIZEOF([long])
 AC_CHECK_SIZEOF([long long])
 AC_CHECK_SIZEOF([off_t],,[#include <sys/types.h>])
-AC_CHECK_SIZEOF([rlim_t],,[#include <sys/resource.h>])
+AC_CHECK_SIZEOF([struct i64_i32],,[struct i64_i32 {long long i64; int i32;};])
 
-AC_CACHE_CHECK([for SA_RESTORER], [st_cv_sa_restorer],
-              [st_cv_sa_restorer="$(echo SA_RESTORER |
+AC_CACHE_CHECK([for SIGRTMIN], [st_cv_SIGRTMIN],
+              [[st_cv_SIGRTMIN="$(echo SIGRTMIN |
+                       $CPP $CPPFLAGS -P -imacros asm/signal.h - |
+                       grep '^[0-9]')"
+                test -n "$st_cv_SIGRTMIN" || st_cv_SIGRTMIN=no]])
+if test "x$st_cv_SIGRTMIN" != xno; then
+       AC_DEFINE_UNQUOTED([ASM_SIGRTMIN], [$st_cv_SIGRTMIN],
+                          [SIGRTMIN defined in <asm/signal.h>])
+fi
+AC_CACHE_CHECK([for SA_RESTORER], [st_cv_SA_RESTORER],
+              [st_cv_SA_RESTORER="$(echo SA_RESTORER |
                        $CPP $CPPFLAGS -P -imacros asm/signal.h - |
                        grep ^0x)"
-               test -n "$st_cv_sa_restorer" || st_cv_sa_restorer=no])
-if test "x$st_cv_sa_restorer" != xno; then
-       AC_DEFINE_UNQUOTED([ASM_SA_RESTORER], [$st_cv_sa_restorer],
+               test -n "$st_cv_SA_RESTORER" || st_cv_SA_RESTORER=no])
+if test "x$st_cv_SA_RESTORER" != xno; then
+       AC_DEFINE_UNQUOTED([ASM_SA_RESTORER], [$st_cv_SA_RESTORER],
                           [SA_RESTORER defined in <asm/signal.h>])
 fi
 
@@ -320,7 +773,114 @@ if test "x$st_cv_have___builtin_popcount" = xyes; then
                  [Define to 1 if the system provides __builtin_popcount function])
 fi
 
+AC_CHECK_LIB([dl], [dladdr], [dl_LIBS='-ldl'], [dl_LIBS=])
+if test "x$ac_cv_lib_dl_dladdr" = xyes; then
+       AC_DEFINE([HAVE_DLADDR], [1], [Define to 1 if the system provides dladdr])
+fi
+AC_SUBST(dl_LIBS)
+
 AC_PATH_PROG([PERL], [perl])
 
-AC_CONFIG_FILES([Makefile tests/Makefile])
+dnl stack trace with libunwind
+libunwind_CPPFLAGS=
+libunwind_LDFLAGS=
+libunwind_LIBS=
+AC_ARG_WITH([libunwind],
+            [AS_HELP_STRING([--with-libunwind],
+                            [use libunwind to implement stack tracing support])],
+            [case "${withval}" in
+             yes|no|check) ;;
+             *) with_libunwind=yes
+                libunwind_CPPFLAGS="-I${withval}/include"
+                libunwind_LDFLAGS="-L${withval}/lib" ;;
+             esac],
+            [with_libunwind=check]
+)
+
+use_libunwind=no
+AS_IF([test "x$with_libunwind" != xno],
+      [saved_CPPFLAGS="$CPPFLAGS"
+       CPPFLAGS="$CPPFLAGS $libunwind_CPPFLAGS"
+
+       AC_CHECK_HEADERS([libunwind-ptrace.h],
+         [saved_LDFLAGS="$LDFLAGS"
+          LDFLAGS="$LDFLAGS $libunwind_LDFLAGS"
+
+          AC_CHECK_LIB([unwind], [backtrace],
+            [libunwind_LIBS="-lunwind $libunwind_LIBS"
+
+             AC_MSG_CHECKING([for unw_create_addr_space in libunwind-generic])
+             saved_LIBS="$LIBS"
+             LIBS="-lunwind-generic $libunwind_LIBS $LIBS"
+
+             AC_LINK_IFELSE(
+               [AC_LANG_PROGRAM([[#include <libunwind-ptrace.h>]],
+                                [[return !unw_create_addr_space(0, 0)]])
+               ],
+               [AC_MSG_RESULT([yes])
+                libunwind_LIBS="-lunwind-generic $libunwind_LIBS"
+
+                AC_CHECK_LIB([unwind-ptrace], [_UPT_create],
+                  [libunwind_LIBS="-lunwind-ptrace $libunwind_LIBS"
+                   use_libunwind=yes
+                  ],
+                  [if test "x$with_libunwind" != xcheck; then
+                     AC_MSG_FAILURE([failed to find _UPT_create in libunwind-ptrace])
+                   fi
+                  ],
+                  [$libunwind_LIBS]
+                )
+               ],
+               [AC_MSG_RESULT([no])
+                if test "x$with_libunwind" != xcheck; then
+                  AC_MSG_FAILURE([failed to find unw_create_addr_space in libunwind-generic])
+                fi
+               ]
+             )
+
+             LIBS="$saved_LIBS"
+            ],
+            [if test "x$with_libunwind" != xcheck; then
+               AC_MSG_FAILURE([failed to find libunwind])
+             fi
+            ],
+            [$libunwind_LIBS]
+          )
+
+          LDFLAGS="$saved_LDFLAGS"
+         ],
+         [if test "x$with_libunwind" != xcheck; then
+            AC_MSG_FAILURE([failed to find libunwind-ptrace.h])
+          fi
+         ]
+       )
+
+       CPPFLAGS="$saved_CPPFLAGS"
+      ]
+)
+
+dnl enable libunwind
+AC_MSG_CHECKING([whether to enable stack tracing support using libunwind])
+if test "x$use_libunwind" = xyes; then
+       AC_DEFINE([USE_LIBUNWIND], 1, [Compile stack tracing functionality])
+       AC_SUBST(libunwind_LIBS)
+       AC_SUBST(libunwind_LDFLAGS)
+       AC_SUBST(libunwind_CPPFLAGS)
+fi
+AM_CONDITIONAL([USE_LIBUNWIND], [test "x$use_libunwind" = xyes])
+AC_MSG_RESULT([$use_libunwind])
+
+if test "$arch" = mips && test "$no_create" != yes; then
+       mkdir -p linux/mips
+       if $srcdir/linux/mips/genstub.sh linux/mips; then
+               AC_MSG_RESULT([Generated MIPS syscallent stubs])
+       else
+               AC_MSG_FAILURE([Failed to generate syscallent stubs])
+       fi
+fi
+
+st_MPERS([m32], [aarch64|powerpc64|sparc64|tile|x32|x86_64])
+st_MPERS([mx32], [x86_64])
+
+AC_CONFIG_FILES([Makefile tests/Makefile tests-m32/Makefile tests-mx32/Makefile])
 AC_OUTPUT