AC_INCLUDEDIR
+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
#include <sys/socket.h>
#include <netinet/in.h>])
AC_LITTLE_ENDIAN_LONG_LONG
-AC_OFF_T_IS_LONG_LONG
AC_CHECK_FUNCS(m4_normalize([
+ fopen64
fork
+ fputs_unlocked
if_indextoname
inet_ntop
prctl
+ preadv
process_vm_readv
+ pwritev
sendmsg
+ sendmmsg
sigaction
stpcpy
strerror
strsignal
- _sys_siglist
- sys_siglist
]))
AC_CHECK_HEADERS(m4_normalize([
asm/cachectl.h
asm/sysmips.h
+ bluetooth/bluetooth.h
elf.h
inttypes.h
ioctls.h
- linux/capability.h
linux/perf_event.h
linux/ptrace.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/poll.h
sys/ptrace.h
sys/reg.h
- sys/uio.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>
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_TYPES([struct __old_kernel_stat],,, [#include <asm/stat.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],,, [#include <signal.h>])
+ struct sigevent.__pad,
+ siginfo_t.si_syscall],,, [#include <signal.h>])
+
+AC_CHECK_MEMBERS([struct sysinfo.totalhigh,
+ struct sysinfo.freehigh,
+ struct sysinfo.mem_unit],,, [#include <sys/sysinfo.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_DECLS([sys_errlist])
-AC_CHECK_DECLS([sys_siglist, _sys_siglist],,, [#include <signal.h>])
AC_CHECK_DECLS(m4_normalize([
PTRACE_EVENT_CLONE,
PTRACE_EVENT_EXEC,
PTRACE_O_TRACEFORK,
PTRACE_O_TRACESYSGOOD,
PTRACE_O_TRACEVFORK,
+ PTRACE_PEEKUSER,
+ PTRACE_POKEUSER,
PTRACE_SETOPTIONS
]),,, [#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>
AC_CHECK_SIZEOF([long])
AC_CHECK_SIZEOF([long long])
-AC_CHECK_SIZEOF([rlim_t],,[#include <sys/resource.h>])
+AC_CHECK_SIZEOF([off_t],,[#include <sys/types.h>])
+
+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],
+ [SA_RESTORER defined in <asm/signal.h>])
+fi
+
+AC_CACHE_CHECK([for __builtin_popcount], [st_cv_have___builtin_popcount],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_popcount(0)])],
+ [st_cv_have___builtin_popcount=yes],
+ [st_cv_have___builtin_popcount=no])])
+if test "x$st_cv_have___builtin_popcount" = xyes; then
+ AC_DEFINE([HAVE___BUILTIN_POPCOUNT], [1],
+ [Define to 1 if the system provides __builtin_popcount function])
+fi
AC_PATH_PROG([PERL], [perl])
+dnl stack trace with libunwind
+libunwind_CPPFLAGS=
+libunwind_LDFLAGS=
+libunwind_LIBS=
+AC_ARG_WITH([libunwind],
+ [AS_HELP_STRING([--with-libunwind],
+ [use libunwind to implement stack tracing support])],
+ [case "${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])
+
AC_CONFIG_FILES([Makefile tests/Makefile])
AC_OUTPUT
projects / strace / blobdiff