• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1dnl Process this file with autoconf to create configure.  Use autoreconf.
2AC_PREREQ(2.57)
3AC_INIT([strace],
4	m4_esyscmd([./git-version-gen .tarball-version]),
5	[strace-devel@lists.sourceforge.net])
6AC_CONFIG_SRCDIR([strace.c])
7AC_CONFIG_AUX_DIR([.])
8AC_CONFIG_HEADERS([config.h])
9AM_INIT_AUTOMAKE([foreign dist-xz no-dist-gzip silent-rules parallel-tests])
10AM_MAINTAINER_MODE
11AC_CANONICAL_HOST
12
13AC_PROG_CC
14AC_USE_SYSTEM_EXTENSIONS
15
16AC_MSG_CHECKING([for supported architecture])
17case "$host_cpu" in
18bfin)
19	arch=bfin
20	AC_DEFINE([BFIN], 1, [Define for the Blackfin architecture.])
21	;;
22i[[3456]]86|pentium)
23	arch=i386
24	AC_DEFINE([I386], 1, [Define for the i386 architecture.])
25	;;
26ia64)
27	arch=ia64
28	AC_DEFINE([IA64], 1, [Define for the IA64 architecture.])
29	;;
30m68k)
31	arch=m68k
32	AC_DEFINE([M68K], 1, [Define for the m68k architecture.])
33	;;
34sparc64*)
35	arch=sparc64
36	AC_DEFINE([SPARC64], 1, [Define for the SPARC64 architecture.])
37	;;
38sparc*)
39	arch=sparc
40	AC_DEFINE([SPARC], 1, [Define for the SPARC architecture.])
41	;;
42metag*)
43	arch=metag
44	AC_DEFINE([METAG], 1, [Define for the Meta architecture.])
45	;;
46mips*)
47	arch=mips
48	AC_DEFINE([MIPS], 1, [Define for the MIPS architecture.])
49	;;
50alpha*)
51	arch=alpha
52	AC_DEFINE([ALPHA], 1, [Define for the Alpha architecture.])
53	;;
54powerpc*)
55	arch=powerpc
56	AC_DEFINE([POWERPC], 1, [Define for the PowerPC architecture.])
57	AC_TRY_COMPILE(
58[#ifndef __LP64__
59# error 32 bit
60#endif], [], ppc_bits=64, ppc_bits=32)
61	if test "$ppc_bits" = "64"; then
62		AC_DEFINE([POWERPC64], 1, [Define for the PowerPC64 architecture.])
63	fi
64	;;
65arm*)
66	arch=arm
67	AC_DEFINE([ARM], 1, [Define for the ARM architecture.])
68	;;
69aarch64*)
70	arch=aarch64
71	AC_DEFINE([AARCH64], 1, [Define for the AArch64 architecture.])
72	;;
73avr32*)
74	arch=avr32
75	AC_DEFINE([AVR32], 1, [Define for the AVR32 architecture.])
76	;;
77arc*)
78	arch=arc
79	AC_DEFINE([ARC], 1, [Define for the ARC architecture.])
80	;;
81s390)
82	arch=s390
83	AC_DEFINE([S390], 1, [Define for the S390 architecture.])
84	;;
85s390x)
86	arch=s390x
87	AC_DEFINE([S390X], 1, [Define for the S390x architecture.])
88	;;
89hppa*|parisc*)
90	arch=hppa
91	AC_DEFINE([HPPA], 1, [Define for the HPPA architecture.])
92	;;
93sh64*)
94	arch=sh64
95	AC_DEFINE([SH64], 1, [Define for the SH64 architecture.])
96	;;
97sh*)
98	arch=sh
99	AC_DEFINE([SH], 1, [Define for the SH architecture.])
100	;;
101x86?64*)
102	AC_TRY_COMPILE(
103[#ifndef __ILP32__
104# error not x32
105#endif], [], arch=x32, arch=x86_64)
106	if test "$arch" = "x86_64"; then
107		AC_DEFINE([X86_64], 1, [Define for the 64bit AMD x86-64 architecture.])
108	else
109		AC_DEFINE([X32], 1, [Define for the 32bit AMD x86-64 architecture.])
110	fi
111	;;
112cris|crisv10)
113	arch=crisv10
114	AC_DEFINE([CRISV10], 1, [Define for the CRISv10 architecture.])
115	;;
116crisv32)
117	arch=crisv32
118	AC_DEFINE([CRISV32], 1, [Define for the CRISv32 architecture.])
119	;;
120tile*)
121	arch=tile
122	AC_DEFINE([TILE], 1, [Define for the Tile architecture])
123	;;
124microblaze*)
125	arch=microblaze
126	AC_DEFINE([MICROBLAZE], 1, [Define for the MicroBlaze architecture.])
127	;;
128or1k*)
129	arch=or1k
130	AC_DEFINE([OR1K], 1, [Define for the OpenRISC 1000 architecture.])
131	;;
132
133xtensa*)
134	arch=xtensa
135	AC_DEFINE([XTENSA], 1, [Define for the Xtensa architecture])
136	;;
137
138*)
139	AC_MSG_RESULT([NO!])
140	AC_MSG_ERROR([architecture $host_cpu is not supported by strace])
141	;;
142esac
143AC_MSG_RESULT($arch)
144
145AC_SUBST(arch)
146
147AM_CONDITIONAL([I386], [test x$arch = xi386])
148AM_CONDITIONAL([X86_64], [test x$arch = xx86_64])
149AM_CONDITIONAL([X32], [test x$arch = xx32])
150
151AC_INCLUDEDIR
152
153AC_ARG_ENABLE([arm-oabi],
154	      [AS_HELP_STRING([--enable-arm-oabi],
155			      [enable OABI support on ARM EABI])],
156	      [], [enable_arm_oabi=no])
157case "$enable_arm_oabi" in
158	yes) enable_arm_oabi=1 ;;
159	no) enable_arm_oabi=0 ;;
160	*) AC_MSG_ERROR([bad value $enable_arm_oabi for arm-oabi option]) ;;
161esac
162AC_DEFINE_UNQUOTED([ENABLE_ARM_OABI], [$enable_arm_oabi],
163		   [Define to 1 if you want OABI support on ARM EABI.])
164
165gl_WARN_ADD([-Wall])
166gl_WARN_ADD([-Wwrite-strings])
167AC_ARG_ENABLE([gcc-Werror],
168  [AS_HELP_STRING([--enable-gcc-Werror], [turn on gcc's -Werror option])],
169  [case $enableval in
170     yes) gl_WARN_ADD([-Werror]) ;;
171     no)  ;;
172     *)   AC_MSG_ERROR([bad value $enableval for gcc-Werror option]) ;;
173   esac]
174)
175AC_SUBST([WARN_CFLAGS])
176
177AC_PROG_CPP
178AC_PROG_INSTALL
179AC_C_CONST
180AC_C_BIGENDIAN
181AC_HEADER_STDC
182AC_HEADER_STDBOOL
183AC_HEADER_DIRENT
184AC_HEADER_STAT
185AC_CHECK_MEMBERS(m4_normalize([
186	struct stat.st_aclcnt,
187	struct stat.st_blksize,
188	struct stat.st_blocks,
189	struct stat.st_flags,
190	struct stat.st_fstype,
191	struct stat.st_gen,
192	struct stat.st_level,
193	struct stat.st_rdev
194]))
195AC_STAT64
196AC_STATFS64
197
198AC_TYPE_SIGNAL
199AC_TYPE_UID_T
200AC_TYPE_MODE_T
201AC_TYPE_GETGROUPS
202AC_HEADER_MAJOR
203AC_CHECK_TYPES([sig_atomic_t, siginfo_t],,, [#include <signal.h>])
204AC_CHECK_MEMBERS([struct sockaddr_in6.sin6_scope_id],,,
205[#include <sys/types.h>
206#include <sys/socket.h>
207#include <netinet/in.h>])
208AC_LITTLE_ENDIAN_LONG_LONG
209
210AC_CHECK_FUNCS(m4_normalize([
211	fopen64
212	fork
213	fputs_unlocked
214	if_indextoname
215	inet_ntop
216	prctl
217	process_vm_readv
218	sendmsg
219	sigaction
220	stpcpy
221	strerror
222	strsignal
223]))
224AC_CHECK_HEADERS(m4_normalize([
225	asm/cachectl.h
226	asm/sysmips.h
227	elf.h
228	inttypes.h
229	ioctls.h
230	linux/capability.h
231	linux/perf_event.h
232	linux/ptrace.h
233	linux/utsname.h
234	mqueue.h
235	netinet/sctp.h
236	poll.h
237	scsi/sg.h
238	stropts.h
239	sys/acl.h
240	sys/asynch.h
241	sys/conf.h
242	sys/epoll.h
243	sys/filio.h
244	sys/ioctl.h
245	sys/poll.h
246	sys/ptrace.h
247	sys/reg.h
248	sys/uio.h
249	sys/vfs.h
250]))
251AC_CHECK_HEADERS([linux/icmp.h linux/in6.h linux/netlink.h linux/if_packet.h],
252                 [], [], [#include <stddef.h>
253#include <sys/socket.h>
254#include <asm/types.h>])
255AC_CHECK_HEADERS([asm/sigcontext.h], [], [], [#include <signal.h>])
256AC_CHECK_TYPES([struct sigcontext],,, [#include <signal.h>])
257AC_CHECK_HEADERS([netinet/tcp.h netinet/udp.h],,, [#include <netinet/in.h>])
258
259AC_CHECK_MEMBERS([struct msghdr.msg_control],,, [#include <sys/socket.h>])
260
261AC_CHECK_TYPES([struct __old_kernel_stat],,, [#include <asm/stat.h>])
262
263AC_CHECK_TYPES([struct pt_all_user_regs, struct ia64_fpreg, struct ptrace_peeksiginfo_args],,,
264	       [#include <sys/ptrace.h>])
265
266AC_CHECK_MEMBERS([struct utsname.domainname],,, [#include <sys/utsname.h>])
267
268AC_CHECK_MEMBERS([struct sigevent._sigev_un._pad,
269		  struct sigevent.__pad,
270		  siginfo_t.si_syscall],,, [#include <signal.h>])
271
272AC_CHECK_TYPES([struct flock64],,, [#include <fcntl.h>])
273
274AC_CHECK_DECLS([sys_errlist])
275AC_CHECK_DECLS(m4_normalize([
276	PTRACE_EVENT_CLONE,
277	PTRACE_EVENT_EXEC,
278	PTRACE_EVENT_EXIT,
279	PTRACE_EVENT_FORK,
280	PTRACE_EVENT_VFORK,
281	PTRACE_EVENT_VFORK_DONE,
282	PTRACE_GETEVENTMSG,
283	PTRACE_GETSIGINFO,
284	PTRACE_O_TRACECLONE,
285	PTRACE_O_TRACEEXEC,
286	PTRACE_O_TRACEEXIT,
287	PTRACE_O_TRACEFORK,
288	PTRACE_O_TRACESYSGOOD,
289	PTRACE_O_TRACEVFORK,
290	PTRACE_PEEKUSER,
291	PTRACE_POKEUSER,
292	PTRACE_SETOPTIONS
293]),,, [#include <sys/ptrace.h>])
294
295AC_CHECK_DECLS(m4_normalize([
296	P_PID,
297	P_PPID,
298	P_PGID,
299	P_SID,
300	P_CID,
301	P_UID,
302	P_GID,
303	P_ALL,
304	P_LWPID
305]),,, [#include <sys/wait.h>])
306
307AC_CHECK_DECLS(m4_normalize([
308	LO_FLAGS_READ_ONLY,
309	LO_FLAGS_AUTOCLEAR,
310	LO_FLAGS_PARTSCAN
311]),,, [#include <linux/loop.h>])
312
313AC_CHECK_DECLS(m4_normalize([
314	CTL_KERN,
315	CTL_VM,
316	CTL_NET,
317	CTL_PROC,
318	CTL_FS,
319	CTL_DEBUG,
320	CTL_DEV,
321	CTL_BUS,
322	CTL_ABI,
323	CTL_CPU,
324	CTL_ARLAN,
325	CTL_S390DBF,
326	CTL_SUNRPC,
327	CTL_PM,
328	CTL_FRV,
329	KERN_OSTYPE,
330	KERN_OSRELEASE,
331	KERN_OSREV,
332	KERN_VERSION,
333	KERN_SECUREMASK,
334	KERN_PROF,
335	KERN_NODENAME,
336	KERN_DOMAINNAME,
337	KERN_PANIC,
338	KERN_REALROOTDEV,
339	KERN_SPARC_REBOOT,
340	KERN_CTLALTDEL,
341	KERN_PRINTK,
342	KERN_NAMETRANS,
343	KERN_PPC_HTABRECLAIM,
344	KERN_PPC_ZEROPAGED,
345	KERN_PPC_POWERSAVE_NAP,
346	KERN_MODPROBE,
347	KERN_SG_BIG_BUFF,
348	KERN_ACCT,
349	KERN_PPC_L2CR,
350	KERN_RTSIGNR,
351	KERN_RTSIGMAX,
352	KERN_SHMMAX,
353	KERN_MSGMAX,
354	KERN_MSGMNB,
355	KERN_MSGPOOL,
356	KERN_SYSRQ,
357	KERN_MAX_THREADS,
358	KERN_RANDOM,
359	KERN_SHMALL,
360	KERN_MSGMNI,
361	KERN_SEM,
362	KERN_SPARC_STOP_A,
363	KERN_SHMMNI,
364	KERN_OVERFLOWUID,
365	KERN_OVERFLOWGID,
366	KERN_SHMPATH,
367	KERN_HOTPLUG,
368	KERN_IEEE_EMULATION_WARNINGS,
369	KERN_S390_USER_DEBUG_LOGGING,
370	KERN_CORE_USES_PID,
371	KERN_TAINTED,
372	KERN_CADPID,
373	KERN_PIDMAX,
374	KERN_CORE_PATTERN,
375	KERN_PANIC_ON_OOPS,
376	KERN_HPPA_PWRSW,
377	KERN_HPPA_UNALIGNED,
378	KERN_PRINTK_RATELIMIT,
379	KERN_PRINTK_RATELIMIT_BURST,
380	KERN_PTY,
381	KERN_NGROUPS_MAX,
382	KERN_SPARC_SCONS_PWROFF,
383	KERN_HZ_TIMER,
384	KERN_UNKNOWN_NMI_PANIC,
385	KERN_BOOTLOADER_TYPE,
386	KERN_RANDOMIZE,
387	KERN_SETUID_DUMPABLE,
388	KERN_SPIN_RETRY,
389	KERN_ACPI_VIDEO_FLAGS,
390	KERN_IA64_UNALIGNED,
391	KERN_COMPAT_LOG,
392	KERN_MAX_LOCK_DEPTH,
393	KERN_NMI_WATCHDOG,
394	KERN_PANIC_ON_NMI,
395	NET_CORE,
396	NET_ETHER,
397	NET_802,
398	NET_UNIX,
399	NET_IPV4,
400	NET_IPX,
401	NET_ATALK,
402	NET_NETROM,
403	NET_AX25,
404	NET_BRIDGE,
405	NET_ROSE,
406	NET_IPV6,
407	NET_X25,
408	NET_TR,
409	NET_DECNET,
410	NET_ECONET,
411	NET_SCTP,
412	NET_LLC,
413	NET_NETFILTER,
414	NET_DCCP,
415	NET_IRDA,
416	NET_CORE_WMEM_MAX,
417	NET_CORE_RMEM_MAX,
418	NET_CORE_WMEM_DEFAULT,
419	NET_CORE_RMEM_DEFAULT,
420	NET_CORE_DESTROY_DELAY,
421	NET_CORE_MAX_BACKLOG,
422	NET_CORE_FASTROUTE,
423	NET_CORE_MSG_COST,
424	NET_CORE_MSG_BURST,
425	NET_CORE_OPTMEM_MAX,
426	NET_CORE_HOT_LIST_LENGTH,
427	NET_CORE_DIVERT_VERSION,
428	NET_CORE_NO_CONG_THRESH,
429	NET_CORE_NO_CONG,
430	NET_CORE_LO_CONG,
431	NET_CORE_MOD_CONG,
432	NET_CORE_DEV_WEIGHT,
433	NET_CORE_SOMAXCONN,
434	NET_CORE_BUDGET,
435	NET_CORE_AEVENT_ETIME,
436	NET_CORE_AEVENT_RSEQTH,
437	NET_CORE_WARNINGS,
438	NET_IPV4_FORWARD,
439	NET_IPV4_DYNADDR,
440	NET_IPV4_CONF,
441	NET_IPV4_NEIGH,
442	NET_IPV4_ROUTE,
443	NET_IPV4_FIB_HASH,
444	NET_IPV4_NETFILTER,
445	NET_IPV4_TCP_TIMESTAMPS,
446	NET_IPV4_TCP_WINDOW_SCALING,
447	NET_IPV4_TCP_SACK,
448	NET_IPV4_TCP_RETRANS_COLLAPSE,
449	NET_IPV4_DEFAULT_TTL,
450	NET_IPV4_AUTOCONFIG,
451	NET_IPV4_NO_PMTU_DISC,
452	NET_IPV4_TCP_SYN_RETRIES,
453	NET_IPV4_IPFRAG_HIGH_THRESH,
454	NET_IPV4_IPFRAG_LOW_THRESH,
455	NET_IPV4_IPFRAG_TIME,
456	NET_IPV4_TCP_MAX_KA_PROBES,
457	NET_IPV4_TCP_KEEPALIVE_TIME,
458	NET_IPV4_TCP_KEEPALIVE_PROBES,
459	NET_IPV4_TCP_RETRIES1,
460	NET_IPV4_TCP_RETRIES2,
461	NET_IPV4_TCP_FIN_TIMEOUT,
462	NET_IPV4_IP_MASQ_DEBUG,
463	NET_TCP_SYNCOOKIES,
464	NET_TCP_STDURG,
465	NET_TCP_RFC1337,
466	NET_TCP_SYN_TAILDROP,
467	NET_TCP_MAX_SYN_BACKLOG,
468	NET_IPV4_LOCAL_PORT_RANGE,
469	NET_IPV4_ICMP_ECHO_IGNORE_ALL,
470	NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS,
471	NET_IPV4_ICMP_SOURCEQUENCH_RATE,
472	NET_IPV4_ICMP_DESTUNREACH_RATE,
473	NET_IPV4_ICMP_TIMEEXCEED_RATE,
474	NET_IPV4_ICMP_PARAMPROB_RATE,
475	NET_IPV4_ICMP_ECHOREPLY_RATE,
476	NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES,
477	NET_IPV4_IGMP_MAX_MEMBERSHIPS,
478	NET_TCP_TW_RECYCLE,
479	NET_IPV4_ALWAYS_DEFRAG,
480	NET_IPV4_TCP_KEEPALIVE_INTVL,
481	NET_IPV4_INET_PEER_THRESHOLD,
482	NET_IPV4_INET_PEER_MINTTL,
483	NET_IPV4_INET_PEER_MAXTTL,
484	NET_IPV4_INET_PEER_GC_MINTIME,
485	NET_IPV4_INET_PEER_GC_MAXTIME,
486	NET_TCP_ORPHAN_RETRIES,
487	NET_TCP_ABORT_ON_OVERFLOW,
488	NET_TCP_SYNACK_RETRIES,
489	NET_TCP_MAX_ORPHANS,
490	NET_TCP_MAX_TW_BUCKETS,
491	NET_TCP_FACK,
492	NET_TCP_REORDERING,
493	NET_TCP_ECN,
494	NET_TCP_DSACK,
495	NET_TCP_MEM,
496	NET_TCP_WMEM,
497	NET_TCP_RMEM,
498	NET_TCP_APP_WIN,
499	NET_TCP_ADV_WIN_SCALE,
500	NET_IPV4_NONLOCAL_BIND,
501	NET_IPV4_ICMP_RATELIMIT,
502	NET_IPV4_ICMP_RATEMASK,
503	NET_TCP_TW_REUSE,
504	NET_TCP_FRTO,
505	NET_TCP_LOW_LATENCY,
506	NET_IPV4_IPFRAG_SECRET_INTERVAL,
507	NET_IPV4_IGMP_MAX_MSF,
508	NET_TCP_NO_METRICS_SAVE,
509	NET_TCP_DEFAULT_WIN_SCALE,
510	NET_TCP_MODERATE_RCVBUF,
511	NET_TCP_TSO_WIN_DIVISOR,
512	NET_TCP_BIC_BETA,
513	NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR,
514	NET_TCP_CONG_CONTROL,
515	NET_TCP_ABC,
516	NET_IPV4_IPFRAG_MAX_DIST,
517	NET_TCP_MTU_PROBING,
518	NET_TCP_BASE_MSS,
519	NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS,
520	NET_TCP_DMA_COPYBREAK,
521	NET_TCP_SLOW_START_AFTER_IDLE,
522	NET_CIPSOV4_CACHE_ENABLE,
523	NET_CIPSOV4_CACHE_BUCKET_SIZE,
524	NET_CIPSOV4_RBM_OPTFMT,
525	NET_CIPSOV4_RBM_STRICTVALID,
526	NET_TCP_AVAIL_CONG_CONTROL,
527	NET_TCP_ALLOWED_CONG_CONTROL,
528	NET_TCP_MAX_SSTHRESH,
529	NET_TCP_FRTO_RESPONSE,
530	NET_IPV4_ROUTE_FLUSH,
531	NET_IPV4_ROUTE_MIN_DELAY,
532	NET_IPV4_ROUTE_MAX_DELAY,
533	NET_IPV4_ROUTE_GC_THRESH,
534	NET_IPV4_ROUTE_MAX_SIZE,
535	NET_IPV4_ROUTE_GC_MIN_INTERVAL,
536	NET_IPV4_ROUTE_GC_TIMEOUT,
537	NET_IPV4_ROUTE_GC_INTERVAL,
538	NET_IPV4_ROUTE_REDIRECT_LOAD,
539	NET_IPV4_ROUTE_REDIRECT_NUMBER,
540	NET_IPV4_ROUTE_REDIRECT_SILENCE,
541	NET_IPV4_ROUTE_ERROR_COST,
542	NET_IPV4_ROUTE_ERROR_BURST,
543	NET_IPV4_ROUTE_GC_ELASTICITY,
544	NET_IPV4_ROUTE_MTU_EXPIRES,
545	NET_IPV4_ROUTE_MIN_PMTU,
546	NET_IPV4_ROUTE_MIN_ADVMSS,
547	NET_IPV4_ROUTE_SECRET_INTERVAL,
548	NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS,
549	NET_IPV4_CONF_FORWARDING,
550	NET_IPV4_CONF_MC_FORWARDING,
551	NET_IPV4_CONF_PROXY_ARP,
552	NET_IPV4_CONF_ACCEPT_REDIRECTS,
553	NET_IPV4_CONF_SECURE_REDIRECTS,
554	NET_IPV4_CONF_SEND_REDIRECTS,
555	NET_IPV4_CONF_SHARED_MEDIA,
556	NET_IPV4_CONF_RP_FILTER,
557	NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE,
558	NET_IPV4_CONF_BOOTP_RELAY,
559	NET_IPV4_CONF_LOG_MARTIANS,
560	NET_IPV4_CONF_TAG,
561	NET_IPV4_CONF_ARPFILTER,
562	NET_IPV4_CONF_MEDIUM_ID,
563	NET_IPV4_CONF_NOXFRM,
564	NET_IPV4_CONF_NOPOLICY,
565	NET_IPV4_CONF_FORCE_IGMP_VERSION,
566	NET_IPV4_CONF_ARP_ANNOUNCE,
567	NET_IPV4_CONF_ARP_IGNORE,
568	NET_IPV4_CONF_PROMOTE_SECONDARIES,
569	NET_IPV4_CONF_ARP_ACCEPT,
570	NET_IPV4_CONF_ARP_NOTIFY,
571	NET_IPV6_CONF,
572	NET_IPV6_NEIGH,
573	NET_IPV6_ROUTE,
574	NET_IPV6_ICMP,
575	NET_IPV6_BINDV6ONLY,
576	NET_IPV6_IP6FRAG_HIGH_THRESH,
577	NET_IPV6_IP6FRAG_LOW_THRESH,
578	NET_IPV6_IP6FRAG_TIME,
579	NET_IPV6_IP6FRAG_SECRET_INTERVAL,
580	NET_IPV6_MLD_MAX_MSF,
581	NET_IPV6_ROUTE_FLUSH,
582	NET_IPV6_ROUTE_GC_THRESH,
583	NET_IPV6_ROUTE_MAX_SIZE,
584	NET_IPV6_ROUTE_GC_MIN_INTERVAL,
585	NET_IPV6_ROUTE_GC_TIMEOUT,
586	NET_IPV6_ROUTE_GC_INTERVAL,
587	NET_IPV6_ROUTE_GC_ELASTICITY,
588	NET_IPV6_ROUTE_MTU_EXPIRES,
589	NET_IPV6_ROUTE_MIN_ADVMSS,
590	NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS,
591	NET_UNIX_DESTROY_DELAY,
592	NET_UNIX_DELETE_DELAY,
593	NET_UNIX_MAX_DGRAM_QLEN,
594	VM_OVERCOMMIT_MEMORY,
595	VM_PAGE_CLUSTER,
596	VM_DIRTY_BACKGROUND,
597	VM_DIRTY_RATIO,
598	VM_DIRTY_WB_CS,
599	VM_DIRTY_EXPIRE_CS,
600	VM_NR_PDFLUSH_THREADS,
601	VM_OVERCOMMIT_RATIO,
602	VM_PAGEBUF,
603	VM_HUGETLB_PAGES,
604	VM_SWAPPINESS,
605	VM_LOWMEM_RESERVE_RATIO,
606	VM_MIN_FREE_KBYTES,
607	VM_MAX_MAP_COUNT,
608	VM_LAPTOP_MODE,
609	VM_BLOCK_DUMP,
610	VM_HUGETLB_GROUP,
611	VM_VFS_CACHE_PRESSURE,
612	VM_LEGACY_VA_LAYOUT,
613	VM_SWAP_TOKEN_TIMEOUT
614]),,,
615[#include <sys/types.h>
616#include <linux/sysctl.h>])
617
618AC_CACHE_CHECK([for BLKGETSIZE64], [ac_cv_have_blkgetsize64],
619	[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
620#include <stdlib.h>
621#include <linux/fs.h>], [return !BLKGETSIZE64;])],
622			   [ac_cv_have_blkgetsize64=yes], [ac_cv_have_blkgetsize64=no])]
623	if test $ac_cv_have_blkgetsize64 = yes; then
624		AC_DEFINE([HAVE_BLKGETSIZE64], [1], [Define to 1 if you have BLKGETSIZE64.])
625	fi)
626
627AC_CHECK_SIZEOF([long])
628AC_CHECK_SIZEOF([long long])
629AC_CHECK_SIZEOF([off_t],,[#include <sys/types.h>])
630
631AC_CACHE_CHECK([for SA_RESTORER], [st_cv_sa_restorer],
632	       [st_cv_sa_restorer="$(echo SA_RESTORER |
633			$CPP $CPPFLAGS -P -imacros asm/signal.h - |
634			grep ^0x)"
635	        test -n "$st_cv_sa_restorer" || st_cv_sa_restorer=no])
636if test "x$st_cv_sa_restorer" != xno; then
637	AC_DEFINE_UNQUOTED([ASM_SA_RESTORER], [$st_cv_sa_restorer],
638			   [SA_RESTORER defined in <asm/signal.h>])
639fi
640
641AC_CACHE_CHECK([for __builtin_popcount], [st_cv_have___builtin_popcount],
642	       [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_popcount(0)])],
643			       [st_cv_have___builtin_popcount=yes],
644			       [st_cv_have___builtin_popcount=no])])
645if test "x$st_cv_have___builtin_popcount" = xyes; then
646	AC_DEFINE([HAVE___BUILTIN_POPCOUNT], [1],
647		  [Define to 1 if the system provides __builtin_popcount function])
648fi
649
650AC_PATH_PROG([PERL], [perl])
651
652dnl stack trace with libunwind
653libunwind_CPPFLAGS=
654libunwind_LDFLAGS=
655libunwind_LIBS=
656AC_ARG_WITH([libunwind],
657            [AS_HELP_STRING([--with-libunwind],
658                            [use libunwind to implement stack tracing support])],
659            [case "${withval}" in
660             yes|no|check) ;;
661             *) with_libunwind=yes
662                libunwind_CPPFLAGS="-I${withval}/include"
663                libunwind_LDFLAGS="-L${withval}/lib" ;;
664             esac],
665            [with_libunwind=check]
666)
667
668use_libunwind=no
669AS_IF([test "x$with_libunwind" != xno],
670      [saved_CPPFLAGS="$CPPFLAGS"
671       CPPFLAGS="$CPPFLAGS $libunwind_CPPFLAGS"
672
673       AC_CHECK_HEADERS([libunwind-ptrace.h],
674         [saved_LDFLAGS="$LDFLAGS"
675          LDFLAGS="$LDFLAGS $libunwind_LDFLAGS"
676
677          AC_CHECK_LIB([unwind], [backtrace],
678            [libunwind_LIBS="-lunwind $libunwind_LIBS"
679
680             AC_MSG_CHECKING([for unw_create_addr_space in libunwind-generic])
681             saved_LIBS="$LIBS"
682             LIBS="-lunwind-generic $libunwind_LIBS $LIBS"
683
684             AC_LINK_IFELSE(
685               [AC_LANG_PROGRAM([[#include <libunwind-ptrace.h>]],
686                                [[return !unw_create_addr_space(0, 0)]])
687               ],
688               [AC_MSG_RESULT([yes])
689                libunwind_LIBS="-lunwind-generic $libunwind_LIBS"
690
691                AC_CHECK_LIB([unwind-ptrace], [_UPT_create],
692                  [libunwind_LIBS="-lunwind-ptrace $libunwind_LIBS"
693                   use_libunwind=yes
694                  ],
695                  [if test "x$with_libunwind" != xcheck; then
696                     AC_MSG_FAILURE([failed to find _UPT_create in libunwind-ptrace])
697                   fi
698                  ],
699                  [$libunwind_LIBS]
700                )
701               ],
702               [AC_MSG_RESULT([no])
703                if test "x$with_libunwind" != xcheck; then
704                  AC_MSG_FAILURE([failed to find unw_create_addr_space in libunwind-generic])
705                fi
706               ]
707             )
708
709             LIBS="$saved_LIBS"
710            ],
711            [if test "x$with_libunwind" != xcheck; then
712               AC_MSG_FAILURE([failed to find libunwind])
713             fi
714            ],
715            [$libunwind_LIBS]
716          )
717
718          LDFLAGS="$saved_LDFLAGS"
719         ],
720         [if test "x$with_libunwind" != xcheck; then
721            AC_MSG_FAILURE([failed to find libunwind-ptrace.h])
722          fi
723         ]
724       )
725
726       CPPFLAGS="$saved_CPPFLAGS"
727      ]
728)
729
730dnl enable libunwind
731AC_MSG_CHECKING([whether to enable stack tracing support using libunwind])
732if test "x$use_libunwind" = xyes; then
733	AC_DEFINE([USE_LIBUNWIND], 1, [Compile stack tracing functionality])
734	AC_SUBST(libunwind_LIBS)
735	AC_SUBST(libunwind_LDFLAGS)
736	AC_SUBST(libunwind_CPPFLAGS)
737fi
738AM_CONDITIONAL([USE_LIBUNWIND], [test "x$use_libunwind" = xyes])
739AC_MSG_RESULT([$use_libunwind])
740
741AC_CONFIG_FILES([Makefile tests/Makefile])
742AC_OUTPUT
743