dnl Process this file with autoconf to create configure. Use autoreconf.
AC_PREREQ(2.57)
AC_INIT([strace],
m4_esyscmd([./git-version-gen .tarball-version]),
[strace-devel@lists.sourceforge.net])
AC_CONFIG_SRCDIR([strace.c])
AC_CONFIG_AUX_DIR([.])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([foreign dist-xz no-dist-gzip silent-rules parallel-tests])
AM_MAINTAINER_MODE
AC_CANONICAL_HOST
AC_PROG_CC
AC_USE_SYSTEM_EXTENSIONS
AC_MSG_CHECKING([for supported architecture])
case "$host_cpu" in
bfin)
arch=bfin
AC_DEFINE([BFIN], 1, [Define for the Blackfin architecture.])
;;
i[[3456]]86|pentium)
arch=i386
AC_DEFINE([I386], 1, [Define for the i386 architecture.])
;;
ia64)
arch=ia64
AC_DEFINE([IA64], 1, [Define for the IA64 architecture.])
;;
m68k)
arch=m68k
AC_DEFINE([M68K], 1, [Define for the m68k architecture.])
;;
sparc64*)
arch=sparc64
AC_DEFINE([SPARC64], 1, [Define for the SPARC64 architecture.])
;;
sparc*)
arch=sparc
AC_DEFINE([SPARC], 1, [Define for the SPARC architecture.])
;;
metag*)
arch=metag
AC_DEFINE([METAG], 1, [Define for the Meta architecture.])
;;
mips*)
arch=mips
AC_DEFINE([MIPS], 1, [Define for the MIPS architecture.])
;;
alpha*)
arch=alpha
AC_DEFINE([ALPHA], 1, [Define for the Alpha architecture.])
;;
powerpc*)
arch=powerpc
AC_DEFINE([POWERPC], 1, [Define for the PowerPC architecture.])
AC_TRY_COMPILE(
[#ifndef __LP64__
# error 32 bit
#endif], [], ppc_bits=64, ppc_bits=32)
if test "$ppc_bits" = "64"; then
AC_DEFINE([POWERPC64], 1, [Define for the PowerPC64 architecture.])
fi
;;
arm*)
arch=arm
AC_DEFINE([ARM], 1, [Define for the ARM architecture.])
;;
aarch64*)
arch=aarch64
AC_DEFINE([AARCH64], 1, [Define for the AArch64 architecture.])
;;
avr32*)
arch=avr32
AC_DEFINE([AVR32], 1, [Define for the AVR32 architecture.])
;;
arc*)
arch=arc
AC_DEFINE([ARC], 1, [Define for the ARC architecture.])
;;
s390)
arch=s390
AC_DEFINE([S390], 1, [Define for the S390 architecture.])
;;
s390x)
arch=s390x
AC_DEFINE([S390X], 1, [Define for the S390x architecture.])
;;
hppa*|parisc*)
arch=hppa
AC_DEFINE([HPPA], 1, [Define for the HPPA architecture.])
;;
sh64*)
arch=sh64
AC_DEFINE([SH64], 1, [Define for the SH64 architecture.])
;;
sh*)
arch=sh
AC_DEFINE([SH], 1, [Define for the SH architecture.])
;;
x86?64*)
AC_TRY_COMPILE(
[#ifndef __ILP32__
# error not x32
#endif], [], arch=x32, arch=x86_64)
if test "$arch" = "x86_64"; then
AC_DEFINE([X86_64], 1, [Define for the 64bit AMD x86-64 architecture.])
else
AC_DEFINE([X32], 1, [Define for the 32bit AMD x86-64 architecture.])
fi
;;
cris|crisv10)
arch=crisv10
AC_DEFINE([CRISV10], 1, [Define for the CRISv10 architecture.])
;;
crisv32)
arch=crisv32
AC_DEFINE([CRISV32], 1, [Define for the CRISv32 architecture.])
;;
tile*)
arch=tile
AC_DEFINE([TILE], 1, [Define for the Tile architecture])
;;
microblaze*)
arch=microblaze
AC_DEFINE([MICROBLAZE], 1, [Define for the MicroBlaze architecture.])
;;
or1k*)
arch=or1k
AC_DEFINE([OR1K], 1, [Define for the OpenRISC 1000 architecture.])
;;
xtensa*)
arch=xtensa
AC_DEFINE([XTENSA], 1, [Define for the Xtensa architecture])
;;
*)
AC_MSG_RESULT([NO!])
AC_MSG_ERROR([architecture $host_cpu is not supported by strace])
;;
esac
AC_MSG_RESULT($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$arch = xx32])
AC_INCLUDEDIR
AC_ARG_ENABLE([arm-oabi],
[AS_HELP_STRING([--enable-arm-oabi],
[enable OABI support on ARM EABI])],
[], [enable_arm_oabi=no])
case "$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])
AC_ARG_ENABLE([gcc-Werror],
[AS_HELP_STRING([--enable-gcc-Werror], [turn on gcc's -Werror option])],
[case $enableval in
yes) gl_WARN_ADD([-Werror]) ;;
no) ;;
*) AC_MSG_ERROR([bad value $enableval for gcc-Werror option]) ;;
esac]
)
AC_SUBST([WARN_CFLAGS])
AC_PROG_CPP
AC_PROG_INSTALL
AC_C_CONST
AC_C_BIGENDIAN
AC_HEADER_STDC
AC_HEADER_STDBOOL
AC_HEADER_DIRENT
AC_HEADER_STAT
AC_CHECK_MEMBERS(m4_normalize([
struct stat.st_aclcnt,
struct stat.st_blksize,
struct stat.st_blocks,
struct stat.st_flags,
struct stat.st_fstype,
struct stat.st_gen,
struct stat.st_level,
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_MEMBERS([struct sockaddr_in6.sin6_scope_id],,,
[#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>])
AC_LITTLE_ENDIAN_LONG_LONG
AC_CHECK_FUNCS(m4_normalize([
fopen64
fork
fputs_unlocked
if_indextoname
inet_ntop
prctl
process_vm_readv
sendmsg
sigaction
stpcpy
strerror
strsignal
]))
AC_CHECK_HEADERS(m4_normalize([
asm/cachectl.h
asm/sysmips.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/ioctl.h
sys/poll.h
sys/ptrace.h
sys/reg.h
sys/uio.h
sys/vfs.h
]))
AC_CHECK_HEADERS([linux/icmp.h linux/in6.h linux/netlink.h linux/if_packet.h],
[], [], [#include <stddef.h>
#include <sys/socket.h>
#include <asm/types.h>])
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_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_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>])
AC_CHECK_TYPES([struct flock64],,, [#include <fcntl.h>])
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
]),,, [#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_CACHE_CHECK([for BLKGETSIZE64], [ac_cv_have_blkgetsize64],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
#include <stdlib.h>
#include <linux/fs.h>], [return !BLKGETSIZE64;])],
[ac_cv_have_blkgetsize64=yes], [ac_cv_have_blkgetsize64=no])]
if test $ac_cv_have_blkgetsize64 = yes; then
AC_DEFINE([HAVE_BLKGETSIZE64], [1], [Define to 1 if you have BLKGETSIZE64.])
fi)
AC_CHECK_SIZEOF([long])
AC_CHECK_SIZEOF([long long])
AC_CHECK_SIZEOF([off_t],,[#include <sys/types.h>])
AC_CACHE_CHECK([for SA_RESTORER], [st_cv_sa_restorer],
[st_cv_sa_restorer="$(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