ntp_libntp.m4 revision 290001
1dnl ###################################################################### 2dnl Common m4sh code for libntp and clients 3dnl 4dnl Any configure tests which libntp or libisc code depends upon should 5dnl be here or in another m4 macro used by the top-level and sntp 6dnl configure.ac files, so that libntp can be moved into the sntp 7dnl subpackage while retaining access to such test results. 8dnl 9AC_DEFUN([NTP_LIBNTP], [ 10 11AC_REQUIRE([NTP_CROSSCOMPILE]) 12 13# HMS: Save $LIBS and empty it. 14# any LIBS we add here should go in to LDADD_LIBNTP 15AC_SUBST([LDADD_LIBNTP]) 16__LIBS=$LIBS 17LIBS= 18 19dnl The contents of NTP_PROG_CC used to be here... 20 21AC_PROG_INSTALL 22# [Bug 2332] because we need to know if we are using GNU ld... 23LT_PATH_LD 24 25NTP_DIR_SEP 26NTP_LINEEDITLIBS 27NTP_LIB_M 28 29AC_FUNC_FORK 30AC_FUNC_ALLOCA 31AC_FUNC_STRERROR_R 32 33ac_busted_vpath_in_make=no 34case "$build" in 35 *-*-irix6.1*) # 64 bit only 36 # busted vpath? 37 ;; 38 *-*-irix6*) # 6.2 (and later?) 39 ac_busted_vpath_in_make=yes 40 ;; 41 *-*-solaris2.5.1) 42 ac_busted_vpath_in_make=yes 43 ;; 44 *-*-unicosmp*) 45 ac_busted_vpath_in_make=yes 46 ;; 47esac 48 49case "$ac_busted_vpath_in_make$srcdir" in 50 yes.|no*) 51 ;; 52 *) case "`${MAKE-make} -v -f /dev/null 2>/dev/null | grep 'GNU Make'`" in 53 '') 54 AC_MSG_ERROR([building outside of the main directory requires GNU make]) 55 esac 56 ;; 57esac 58 59case "$host" in 60 *-*-aix4*) 61 # Bug 2516: 62 # Was *-*-aix[[4-9]]* 63 # XXX only verified thru AIX6. But... 64 # Ken Link says this is fine for AIX 5.3 and 7.1, and sees no reason 65 # that this support would be in 5.3, removed in 6, and added back. 66 # 67 # (prr) aix 4.1 doesn't have clock_settime, but in aix 4.3 it's a stub 68 # (returning ENOSYS). I didn't check 4.2. If, in the future, 69 # IBM pulls its thumbs out long enough to implement clock_settime, 70 # this conditional will need to change. Maybe use AC_TRY_RUN 71 # instead to try to set the time to itself and check errno. 72 ;; 73 *) 74 HMS_SEARCH_LIBS([LDADD_LIBNTP], [clock_gettime], [rt]) 75 AC_CHECK_FUNCS([clock_getres clock_gettime clock_settime]) 76 ;; 77esac 78 79AC_CHECK_FUNCS([getclock stime timegm strlcpy strlcat]) 80 81# Bug 2713 82LDADD_LIBUTIL= 83AC_SUBST([LDADD_LIBUTIL]) 84HMS_SEARCH_LIBS([LDADD_LIBUTIL], [snprintb], [util], 85 [AC_DEFINE([USE_SNPRINTB], 1, [OK to use snprintb()?])]) 86 87dnl HP-UX 11.31 on HPPA has a net/if.h that can't be compiled with gcc4 88dnl due to an incomplete type (a union) mpinfou used in an array. gcc3 89dnl compiles it without complaint. The mpinfou union is defined later 90dnl in the resulting preprocessed source than the spu_info array in 91dnl /usr/include/machine/sys/getppdp.h: 92dnl extern union mpinfou spu_info[]; 93dnl triggering the error. Our strategy is on HP-UX only, test compile 94dnl net/if.h. If that fails, try adding a duplicate definition of 95dnl mpinfou, and if that helps add it to confdefs.h (used for further 96dnl configure tests) and config.h. 97# 98AC_CHECK_HEADERS([errno.h sys/socket.h sys/types.h time.h]) 99AC_CHECK_HEADERS([net/if.h], [], [], [ 100 #ifdef HAVE_SYS_SOCKET_H 101 # include <sys/socket.h> 102 #endif 103]) 104case "$host" in 105 *-hp-hpux*) 106 AC_CACHE_CHECK( 107 [if net/if.h requires mpinfou predeclaration], 108 [ntp_cv_predecl_mpinfou], 109 [ 110 np_cv_predecl_mpinfou=no 111 case "$ac_cv_header_net_if_h" in 112 no) 113 AC_COMPILE_IFELSE( 114 [AC_LANG_PROGRAM( 115 [[ 116 typedef union mpinfou { 117 struct pdk_mpinfo *pdkptr; 118 struct mpinfo *pikptr; 119 } mpinfou_t; 120 #ifdef HAVE_SYS_SOCKET_H 121 # include <sys/socket.h> 122 #endif 123 #include <net/if.h> 124 ]], 125 [[ 126 ]] 127 )], 128 [ 129 ntp_cv_predecl_mpinfou=yes 130 ac_cv_header_net_if_h=yes 131 ] 132 ) 133 esac 134 ] 135 ) 136 case "$ntp_cv_predecl_mpinfou" in 137 yes) 138 cat >>confdefs.h <<_ACEOF 139#ifndef MPINFOU_PREDECLARED 140# define MPINFOU_PREDECLARED 141typedef union mpinfou { 142 struct pdk_mpinfo *pdkptr; 143 struct mpinfo *pikptr; 144} mpinfou_t; 145#endif 146_ACEOF 147 AH_BOTTOM([ 148#ifndef MPINFOU_PREDECLARED 149# define MPINFOU_PREDECLARED 150typedef union mpinfou { 151 struct pdk_mpinfo *pdkptr; 152 struct mpinfo *pikptr; 153} mpinfou_t; 154#endif 155]) 156 esac 157esac 158 159case "$host" in 160 *-linux*) 161 AC_CHECK_HEADERS([linux/if_addr.h], [], [], [ 162 #ifdef HAVE_SYS_SOCKET_H 163 # include <sys/socket.h> 164 #endif 165 ]) 166esac 167 168AC_CHECK_HEADERS([arpa/nameser.h sys/param.h sys/time.h sys/timers.h]) 169# sys/sysctl.h depends on sys/param.h on OpenBSD - Bug 1576 170AC_CHECK_HEADERS([sys/sysctl.h], [], [], [ 171 #if defined HAVE_SYS_PARAM_H 172 # include <sys/param.h> 173 #endif 174]) 175AC_CHECK_HEADERS([netinet/in_system.h netinet/in_systm.h netinet/in.h]) 176 177AC_CHECK_HEADERS([resolv.h], [], [], [ 178 #ifdef HAVE_SYS_TYPES_H 179 # include <sys/types.h> 180 #endif 181 #ifdef HAVE_NETINET_IN_H 182 # include <netinet/in.h> 183 #endif 184 #ifdef HAVE_ARPA_NAMESER_H 185 # include <arpa/nameser.h> 186 #endif 187]) 188 189AC_CHECK_HEADERS([net/if_var.h], [], [], [ 190 #if HAVE_SYS_TYPES_H 191 # include <sys/types.h> 192 #endif 193 #ifdef HAVE_SYS_SOCKET_H 194 # include <sys/socket.h> 195 #endif 196 #ifdef HAVE_NETINET_IN_H 197 # include <netinet/in.h> 198 #endif 199 #ifdef HAVE_NET_IF_H 200 # include <net/if.h> 201 #endif 202]) 203 204AC_CHECK_HEADERS([netinet/ip.h netinet/in_var.h], [], [], [ 205 #ifdef HAVE_SYS_TYPES_H 206 # include <sys/types.h> 207 #endif 208 #ifdef HAVE_SYS_SOCKET_H 209 # include <sys/socket.h> 210 #endif 211 #ifdef HAVE_NET_IF_H 212 # include <net/if.h> 213 #endif 214 #ifdef HAVE_NETINET_IN_H 215 # include <netinet/in.h> 216 #endif 217 #ifdef HAVE_NET_IF_VAR_H 218 # include <net/if_var.h> 219 #endif 220 #ifdef HAVE_NETINET_IN_SYSTM_H 221 # include <netinet/in_systm.h> 222 #endif 223]) 224 225# HMS: Do we need to check for -lsocket before or after these tests? 226HMS_SEARCH_LIBS([LDADD_LIBNTP], [inet_pton], [nsl]) 227HMS_SEARCH_LIBS([LDADD_LIBNTP], [inet_ntop], [resolv], , , [-lnsl]) 228 229# [Bug 1628] On Solaris, we need -lxnet -lsocket. Generalize this to 230# avoid keying on the OS name: If we find socket functions in 231# libsocket, next try for them in libxnet without libsocket, if found, 232# list both. If we simply tested libxnet first, we would find the 233# functions there and never add libsocket. See also [Bug 660] 234# http://bugs.ntp.org/show_bug.cgi?id=660#c9 235saved_LIBS=$LIBS 236HMS_SEARCH_LIBS([LDADD_LIBNTP], [setsockopt], [socket]) 237case "$ac_cv_search_setsockopt" in 238 -lsocket) 239 LIBS="$saved_LIBS" 240 HMS_SEARCH_LIBS([LDADD_LIBNTP], [getsockopt], [xnet]) 241 # XXX Possible trouble here - reading the comments above and looking at the 242 # code below I wonder if we'll add -lxnet when we don't need it. 243 # Also, do we need to add -lxnet to LDADD_LIBNTP, or perhaps see if it's 244 # there when it is not needed? 245 case "$ac_cv_search_getsockopt" in 246 -lxnet) 247 LIBS="-lxnet -lsocket $saved_LIBS" 248 ;; 249 *) LIBS="-lsocket $saved_LIBS" 250 ;; 251 esac 252 ;; 253esac 254AS_UNSET([saved_LIBS]) 255 256# Bug 2427 - look for recvmsg here. 257AC_CHECK_FUNCS([recvmsg]) 258 259AC_C_INLINE 260 261case "$ac_cv_c_inline" in 262 '') 263 ;; 264 *) 265 AC_DEFINE([HAVE_INLINE], [1], [inline keyword or macro available]) 266 AC_SUBST([HAVE_INLINE]) 267esac 268 269AC_HEADER_TIME 270AC_CHECK_SIZEOF([time_t]) 271AC_C_CHAR_UNSIGNED dnl CROSS_COMPILE? 272AC_CHECK_SIZEOF([signed char]) 273AC_CHECK_TYPES([s_char, long long]) 274AC_CHECK_SIZEOF([short]) 275AC_CHECK_SIZEOF([int]) 276AC_CHECK_SIZEOF([long]) 277 278case "$ac_cv_type_long_long" in 279 no) 280 ;; 281 *) 282 AC_CHECK_SIZEOF([long long]) 283 ;; 284esac 285 286case "$ac_cv_c_char_unsigned$ac_cv_sizeof_signed_char$ac_cv_type_s_char" in 287 *yes) 288 # We have a typedef for s_char. Might as well believe it... 289 ;; 290 no0no) 291 # We have signed chars, can't say 'signed char', no s_char typedef. 292 AC_DEFINE([NEED_S_CHAR_TYPEDEF], [1], 293 [Do we need an s_char typedef?]) 294 ;; 295 no1no) 296 # We have signed chars, can say 'signed char', no s_char typedef. 297 AC_DEFINE([NEED_S_CHAR_TYPEDEF], [1], 298 [Do we need an s_char typedef?]) 299 ;; 300 yes0no) 301 # We have unsigned chars, can't say 'signed char', no s_char typedef. 302 AC_MSG_ERROR([No way to specify a signed character!]) 303 ;; 304 yes1no) 305 # We have unsigned chars, can say 'signed char', no s_char typedef. 306 AC_DEFINE([NEED_S_CHAR_TYPEDEF], [1], 307 [Do we need an s_char typedef?]) 308 ;; 309esac 310 311AC_TYPE_UID_T 312 313m4_divert_text([HELP_ENABLE], 314[AS_HELP_STRING([defaults:], 315 [+ yes, - no, s system-specific])]) 316 317NTP_DEBUG 318 319# check if we can compile with pthreads 320AC_CHECK_HEADERS([semaphore.h]) 321AC_CHECK_FUNCS([socketpair]) 322AC_ARG_ENABLE( 323 [thread-support], 324 [AS_HELP_STRING([--enable-thread-support], 325 [s use threads (+ if available)])], 326 [], 327 [enable_thread_support=yes] 328 ) 329have_pthreads=no 330case "$enable_thread_support" in 331 no) ;; 332 *) 333 ol_found_pthreads=no 334 OL_THREAD_CHECK([ol_found_pthreads=yes]) 335 case "$ol_found_pthreads" in 336 yes) 337 saved_LIBS="$LIBS" 338 LIBS="$LTHREAD_LIBS $LIBS" 339 saved_CFLAGS="$CFLAGS" 340 CFLAGS="$PTHREAD_CFLAGS $CFLAGS" 341 AC_CHECK_FUNCS([sem_timedwait]) 342 LIBS="$saved_LIBS" 343 AS_UNSET([saved_LIBS]) 344 CFLAGS="$saved_CFLAGS" 345 AS_UNSET([saved_CFLAGS]) 346 case "$ac_cv_func_sem_timedwait" in 347 yes) 348 PTHREAD_LIBS="$LTHREAD_LIBS" 349 have_pthreads=yes 350 esac 351 esac 352esac 353AC_SUBST([PTHREAD_LIBS]) 354case "$have_pthreads" in 355 yes) 356 CFLAGS_NTP="$CFLAGS_NTP $PTHREAD_CFLAGS" 357 saved_LIBS="$LIBS" 358 LIBS="$LTHREAD_LIBS $LIBS" 359 saved_CFLAGS="$CFLAGS" 360 CFLAGS="$PTHREAD_CFLAGS $CFLAGS" 361 AC_CHECK_SIZEOF( 362 [pthread_t], 363 , 364 [ 365 AC_INCLUDES_DEFAULT() 366 #include <pthread.h> 367 ] 368 ) 369 LIBISC_PTHREADS_NOTHREADS=pthreads 370 AC_DEFINE([ISC_PLATFORM_USETHREADS], [1], 371 [enable libisc thread support?]) 372 # 373 # We'd like to use sigwait() too 374 # 375 AC_CHECK_FUNC( 376 [sigwait], 377 [have_sigwait=yes], 378 [AC_CHECK_LIB( 379 [c], 380 [sigwait], 381 [have_sigwait=yes], 382 [AC_CHECK_LIB( 383 [pthread], 384 [sigwait], 385 [have_sigwait=yes], 386 [AC_CHECK_LIB( 387 [pthread], 388 [_Psigwait], 389 [have_sigwait=yes], 390 [have_sigwait=no] 391 )] 392 )] 393 )] 394 ) 395 case "$host:$have_sigwait" in 396 *-freebsd*:no) 397 AC_CHECK_LIB( 398 [c_r], 399 [sigwait], 400 [have_sigwait=yes] 401 ) 402 esac 403 case "$have_sigwait" in 404 yes) 405 ac_cv_func_sigwait=yes 406 AC_DEFINE([HAVE_SIGWAIT], [1], [sigwait() available?]) 407 esac 408 409 AC_CHECK_FUNCS([pthread_attr_getstacksize]) 410 AC_CHECK_FUNCS([pthread_attr_setstacksize sysconf]) 411 412 case "$host" in 413 *-freebsd5.[[012]]|*-freebsd5.[[012]].*) 414 ;; 415 *-freebsd5.[[3456789]]|*-freebsd5.[[3456789]].*|*-freebsd6.*) 416 AC_DEFINE([NEED_PTHREAD_SCOPE_SYSTEM], [1], 417 [use PTHREAD_SCOPE_SYSTEM?]) 418 ;; 419 *-bsdi3.*|*-bsdi4.0*) 420 AC_DEFINE([NEED_PTHREAD_INIT], [1], [pthread_init() required?]) 421 ;; 422 *-linux*) 423 AC_DEFINE([HAVE_LINUXTHREADS], [1], [using Linux pthread?]) 424 ;; 425 *-solaris*) 426 AC_DEFINE([_POSIX_PTHREAD_SEMANTICS], [1]) 427 AC_CHECK_FUNCS([pthread_setconcurrency]) 428 case "$ac_cv_func_pthread_setconcurrency" in 429 yes) 430 AC_DEFINE([CALL_PTHREAD_SETCONCURRENCY], [1], 431 [why not HAVE_P_S?]) 432 esac 433 ;; 434 *-sco-sysv*uw*|*-*-sysv*UnixWare*|*-*-sysv*OpenUNIX*) 435 AC_DEFINE([HAVE_UNIXWARE_SIGWAIT], [1], [deviant sigwait?]) 436 ;; 437 esac 438 hack_shutup_pthreadonceinit=no 439 case "$host" in 440 *-aix5.[[123]].*) 441 hack_shutup_pthreadonceinit=yes 442 ;; 443 *-solaris2.[[89]]) 444 hack_shutup_pthreadonceinit=yes 445 ;; 446 *-solaris2.1[[0-9]]) 447 AC_CACHE_CHECK( 448 [if extra braces are needed for PTHREAD_ONCE_INIT], 449 [ntp_cv_braces_around_pthread_once_init], 450 [AC_COMPILE_IFELSE( 451 [AC_LANG_PROGRAM( 452 [[ 453 #include <pthread.h> 454 ]], 455 [[ 456 static pthread_once_t once_test = 457 PTHREAD_ONCE_INIT; 458 ]] 459 )], 460 [ntp_cv_braces_around_pthread_once_init=no], 461 [ntp_cv_braces_around_pthread_once_init=yes] 462 )] 463 ) 464 case "$ntp_cv_braces_around_pthread_once_init" in 465 yes) 466 hack_shutup_pthreadonceinit=yes 467 esac 468 ;; 469 esac 470 case "$hack_shutup_pthreadonceinit" in 471 yes) 472 AC_DEFINE([ISC_PLATFORM_BRACEPTHREADONCEINIT], [1], 473 [Enclose PTHREAD_ONCE_INIT in extra braces?]) 474 esac 475 LIBS="$saved_LIBS" 476 AS_UNSET([saved_LIBS]) 477 CFLAGS="$saved_CFLAGS" 478 AS_UNSET([saved_CFLAGS]) 479 ;; 480 *) 481 LIBISC_PTHREADS_NOTHREADS=nothreads 482 ;; 483esac 484AC_SUBST([LIBISC_PTHREADS_NOTHREADS]) 485AM_CONDITIONAL([PTHREADS], [test "$have_pthreads" != "no"]) 486 487AC_DEFUN([NTP_BEFORE_HW_FUNC_VSNPRINTF], [ 488 AC_BEFORE([$0], [HW_FUNC_VSNPRINTF])dnl 489 AC_BEFORE([$0], [HW_FUNC_SNPRINTF])dnl 490 AC_ARG_ENABLE( 491 [c99-snprintf], 492 [AS_HELP_STRING([--enable-c99-snprintf], [s force replacement])], 493 [force_c99_snprintf=$enableval], 494 [force_c99_snprintf=no] 495 ) 496 case "$force_c99_snprintf" in 497 yes) 498 hw_force_rpl_snprintf=yes 499 hw_force_rpl_vsnprintf=yes 500 esac 501 AH_VERBATIM( 502 [snprinte],dnl sorted in config.h just before #define snprintf 503 [ 504 #if !defined(_KERNEL) && !defined(PARSESTREAM) 505 /* 506 * stdio.h must be included after _GNU_SOURCE is defined 507 * but before #define snprintf rpl_snprintf 508 */ 509 # include <stdio.h> 510 #endif 511 ]) 512 AH_BOTTOM([ 513 #if !defined(_KERNEL) && !defined(PARSESTREAM) 514 # if defined(HW_WANT_RPL_VSNPRINTF) 515 # if defined(__cplusplus) 516 extern "C" { 517 # endif 518 # include <stdarg.h> 519 int rpl_vsnprintf(char *, size_t, const char *, va_list); 520 # if defined(__cplusplus) 521 } 522 # endif 523 # endif 524 # if defined(HW_WANT_RPL_SNPRINTF) 525 # if defined(__cplusplus) 526 extern "C" { 527 # endif 528 int rpl_snprintf(char *, size_t, const char *, ...); 529 # if defined(__cplusplus) 530 } 531 # endif 532 # endif 533 #endif /* !defined(_KERNEL) && !defined(PARSESTREAM) */ 534 ]) 535]) dnl end of AC_DEFUN of NTP_BEFORE_HW_FUNC_VSNPRINTF 536 537AC_DEFUN([NTP_C99_SNPRINTF], [ 538 AC_REQUIRE([NTP_BEFORE_HW_FUNC_VSNPRINTF])dnl 539 AC_REQUIRE([HW_FUNC_VSNPRINTF])dnl 540 AC_REQUIRE([HW_FUNC_SNPRINTF])dnl 541]) dnl end of DEFUN of NTP_C99_SNPRINTF 542 543NTP_C99_SNPRINTF 544 545dnl C99-snprintf does not handle %m 546case "$hw_use_rpl_vsnprintf:$hw_cv_func_vsnprintf" in 547 no:yes) 548 AC_CACHE_CHECK( 549 [if vsnprintf expands "%m" to strerror(errno)], 550 [ntp_cv_vsnprintf_percent_m], 551 [AC_RUN_IFELSE( 552 [AC_LANG_PROGRAM( 553 [[ 554 #include <stdarg.h> 555 #include <errno.h> 556 #include <stdio.h> 557 #include <string.h> 558 559 int call_vsnprintf( 560 char * dst, 561 size_t sz, 562 const char *fmt, 563 ... 564 ); 565 566 int call_vsnprintf( 567 char * dst, 568 size_t sz, 569 const char *fmt, 570 ... 571 ) 572 { 573 va_list ap; 574 int rc; 575 576 va_start(ap, fmt); 577 rc = vsnprintf(dst, sz, fmt, ap); 578 va_end(ap); 579 580 return rc; 581 } 582 ]], 583 [[ 584 char sbuf[512]; 585 char pbuf[512]; 586 int slen; 587 588 strcpy(sbuf, strerror(ENOENT)); 589 errno = ENOENT; 590 slen = call_vsnprintf(pbuf, sizeof(pbuf), "%m", 591 "wrong"); 592 return strcmp(sbuf, pbuf); 593 ]] 594 )], 595 [ntp_cv_vsnprintf_percent_m=yes], 596 [ntp_cv_vsnprintf_percent_m=no], 597 [ntp_cv_vsnprintf_percent_m=no] 598 )] 599 ) 600 case "$ntp_cv_vsnprintf_percent_m" in 601 yes) 602 AC_DEFINE([VSNPRINTF_PERCENT_M], [1], 603 [vsnprintf expands "%m" to strerror(errno)]) 604 esac 605esac 606 607AC_CHECK_HEADERS([sys/clockctl.h]) 608 609AC_ARG_ENABLE( 610 [clockctl], 611 [AS_HELP_STRING( 612 [--enable-clockctl], 613 [s Use /dev/clockctl for non-root clock control] 614 )], 615 [ntp_use_dev_clockctl=$enableval], 616 [ntp_use_dev_clockctl=$ac_cv_header_sys_clockctl_h] 617) 618 619AC_MSG_CHECKING([if we should use /dev/clockctl]) 620AC_MSG_RESULT([$ntp_use_dev_clockctl]) 621 622 623AC_CHECK_HEADERS([sys/capability.h sys/prctl.h]) 624 625AC_MSG_CHECKING([if we have linux capabilities (libcap)]) 626 627case "$ac_cv_header_sys_capability_h$ac_cv_header_sys_prctl_h" in 628 yesyes) 629 case "$host" in 630 mips-sgi-irix*) 631 ntp_have_linuxcaps=no 632 ;; 633 *) ntp_have_linuxcaps=yes 634 ;; 635 esac 636 ;; 637 *) 638 ntp_have_linuxcaps=no 639 ;; 640esac 641 642AC_ARG_ENABLE( 643 [linuxcaps], 644 [AS_HELP_STRING( 645 [--enable-linuxcaps], 646 [+ Use Linux capabilities for non-root clock control] 647 )], 648 [ntp_have_linuxcaps=$enableval] 649) 650 651AC_MSG_RESULT([$ntp_have_linuxcaps]) 652 653case "$ntp_have_linuxcaps" in 654 yes) 655 AC_DEFINE([HAVE_LINUX_CAPABILITIES], [1], 656 [Do we have Linux capabilities?]) 657 LIBS="$LIBS -lcap" 658 ;; 659esac 660 661 662AC_CHECK_HEADERS([priv.h]) 663 664AC_MSG_CHECKING([if we have solaris privileges]) 665 666case "$ac_cv_header_priv_h" in 667 yes) 668 case "$host" in 669 *-solaris*) 670 AC_CHECK_FUNC( 671 [setppriv], 672 [ntp_have_solarisprivs=yes], 673 [ntp_have_solarisprivs=no] 674 ) 675 ;; 676 esac 677esac 678 679AC_ARG_ENABLE( 680 [solarisprivs], 681 [AS_HELP_STRING( 682 [--enable-solarisprivs], 683 [+ Use Solaris privileges for non-root clock control] 684 )], 685 [ntp_have_solarisprivs=$enableval] 686) 687 688 689case "$ntp_have_solarisprivs" in 690 yes) 691 AC_DEFINE([HAVE_SOLARIS_PRIVS], [1], 692 [Are Solaris privileges available?]) 693esac 694 695AC_MSG_RESULT([$ntp_have_solarisprivs]) 696 697case "$ntp_use_dev_clockctl$ntp_have_linuxcaps$ntp_have_solarisprivs" in 698 *yes*) 699 AC_DEFINE([HAVE_DROPROOT], [1], 700 [Can we drop root privileges?]) 701esac 702 703case "$host" in 704 *-*-darwin*) 705 AC_SEARCH_LIBS([res_9_init], [resolv]) 706 ;; 707 *) AC_SEARCH_LIBS([res_init], [resolv]) 708 ;; 709esac 710AC_HEADER_RESOLV 711#HMS: Why do we do this check so "early"? 712AC_CHECK_FUNCS([res_init], , [AC_CHECK_FUNCS([__res_init])]) 713 714# We also need -lsocket, but we have tested for that already. 715AC_CHECK_FUNC([inet_ntop], [], 716 [AC_DEFINE([ISC_PLATFORM_NEEDNTOP], [1], [ISC: provide inet_ntop()])]) 717AC_CHECK_FUNC([inet_pton], [], 718 [AC_DEFINE([ISC_PLATFORM_NEEDPTON], [1], [ISC: provide inet_pton()])]) 719 720AC_CHECK_TYPES([uintptr_t, int32, u_int32]) 721 722AH_VERBATIM([TYPEDEF_UINTPTR_T], 723[/* Provide a typedef for uintptr_t? */ 724#ifndef HAVE_UINTPTR_T 725typedef unsigned int uintptr_t; 726#define HAVE_UINTPTR_T 1 727#endif]) 728 729case "$ac_cv_type_int32::$ac_cv_header_resolv_h" in 730 no::yes) 731 AC_CACHE_CHECK( 732 [for int32 with DNS headers included], 733 [ntp_cv_type_int32_with_dns], 734 [AC_COMPILE_IFELSE( 735 [AC_LANG_PROGRAM( 736 [[ 737 #ifdef HAVE_ARPA_NAMESER_H 738 # include <arpa/nameser.h> 739 #endif 740 #include <resolv.h> 741 ]], 742 [[ 743 size_t cb = sizeof(int32); 744 ]] 745 )], 746 [ntp_cv_type_int32_with_dns=yes], 747 [ntp_cv_type_int32_with_dns=no] 748 )] 749 ) 750 case "$ntp_cv_type_int32_with_dns" in 751 yes) 752 AC_DEFINE([HAVE_INT32_ONLY_WITH_DNS], [1], 753 [int32 type in DNS headers, not others.]) 754 esac 755esac 756 757case "$ac_cv_type_u_int32::$ac_cv_header_resolv_h" in 758 no::yes) 759 AC_CACHE_CHECK( 760 [for u_int32 with DNS headers included], 761 [ntp_cv_type_u_int32_with_dns], 762 [AC_COMPILE_IFELSE( 763 [AC_LANG_PROGRAM( 764 [[ 765 #ifdef HAVE_ARPA_NAMESER_H 766 # include <arpa/nameser.h> 767 #endif 768 #include <resolv.h> 769 ]], 770 [[ 771 size_t cb = sizeof(u_int32); 772 ]] 773 )], 774 [ntp_cv_type_u_int32_with_dns=yes], 775 [ntp_cv_type_u_int32_with_dns=no] 776 )] 777 ) 778 case "$ntp_cv_type_u_int32_with_dns" in 779 yes) 780 AC_DEFINE([HAVE_U_INT32_ONLY_WITH_DNS], [1], 781 [u_int32 type in DNS headers, not others.]) 782 esac 783esac 784 785AC_CHECK_HEADERS( 786 [sys/timepps.h], 787 [], 788 [], 789 [ 790 #ifdef HAVE_SYS_TIME_H 791 # include <sys/time.h> 792 #endif 793 #ifdef HAVE_ERRNO_H 794 # include <errno.h> 795 #endif 796 ] 797) 798 799AC_CACHE_CHECK( 800 [for struct timespec], 801 [ntp_cv_struct_timespec], 802 [AC_COMPILE_IFELSE( 803 [AC_LANG_PROGRAM( 804 [[ 805 #include <sys/time.h> 806 /* Under SunOS, timespec is in sys/timepps.h, 807 which needs errno.h and FRAC */ 808 #ifdef HAVE_ERRNO_H 809 # include <errno.h> 810 #endif 811 #ifdef HAVE_SYS_TIMEPPS_H 812 # define FRAC 4294967296 813 # include <sys/timepps.h> 814 #endif 815 ]], 816 [[ 817 struct timespec n; 818 ]] 819 )], 820 [ntp_cv_struct_timespec=yes], 821 [ntp_cv_struct_timespec=no] 822 )] 823) 824case "$ntp_cv_struct_timespec" in 825 yes) 826 AC_DEFINE([HAVE_STRUCT_TIMESPEC], [1], [struct timespec declared?]) 827esac 828 829AC_CACHE_CHECK( 830 [for struct ntptimeval], 831 [ntp_cv_struct_ntptimeval], 832 [AC_COMPILE_IFELSE( 833 [AC_LANG_PROGRAM( 834 [[ 835 #include <sys/time.h> 836 #include <sys/timex.h> 837 ]], 838 [[ 839 struct ntptimeval n; 840 ]] 841 )], 842 [ntp_cv_struct_ntptimeval=yes], 843 [ntp_cv_struct_ntptimeval=no] 844 )] 845) 846case "$ntp_cv_struct_ntptimeval" in 847 yes) 848 AC_DEFINE([HAVE_STRUCT_NTPTIMEVAL], [1], 849 [Do we have struct ntptimeval?]) 850esac 851 852AC_CHECK_HEADERS( 853 [md5.h], 854 [], 855 [], 856 [ 857 #ifdef HAVE_SYS_TYPES_H 858 # include <sys/types.h> 859 #endif 860 ] 861) 862 863AC_SEARCH_LIBS([MD5Init], [md5 md]) 864AC_CHECK_FUNCS([MD5Init sysconf getdtablesize sigaction sigset sigvec]) 865 866AC_CACHE_CHECK( 867 [for SIGIO], 868 [ntp_cv_hdr_def_sigio], 869 [AC_PREPROC_IFELSE( 870 [AC_LANG_SOURCE([ 871 #include <signal.h> 872 873 #ifndef SIGIO 874 # error 875 #endif 876 ])], 877 [ntp_cv_hdr_def_sigio=yes], 878 [ntp_cv_hdr_def_sigio=no] 879 )] 880 ) 881 882dnl Override those system that have a losing SIGIO 883AC_MSG_CHECKING([if we want to use SIGIO]) 884ans=no 885case "$ntp_cv_hdr_def_sigio" in 886 yes) 887 ans=yes 888 case "$host" in 889 alpha*-dec-osf4*|alpha*-dec-osf5*) 890 ans=no 891 ;; 892 *-convex-*) 893 ans=no 894 ;; 895 *-dec-*) 896 ans=no 897 ;; 898 *-pc-cygwin*) 899 ans=no 900 ;; 901 *-sni-sysv*) 902 ans=no 903 ;; 904 *-stratus-vos) 905 ans=no 906 ;; 907 *-univel-sysv*) 908 ans=no 909 ;; 910 *-*-irix6*) 911 ans=no 912 ;; 913 *-*-freebsd*) 914 ans=no 915 ;; 916 *-*-*linux*) 917 ans=no 918 ;; 919 *-*-unicosmp*) 920 ans=no 921 ;; 922 *-*-kfreebsd*) 923 ans=no 924 ;; 925 m68k-*-mint*) 926 ans=no 927 ;; 928 esac 929 ;; 930esac 931case "$ans" in 932 yes) 933 AC_DEFINE([HAVE_SIGNALED_IO], [1], 934 [Can we use SIGIO for tcp and udp IO?]) 935esac 936AC_MSG_RESULT([$ans]) 937 938AC_CACHE_CHECK( 939 [for SIGPOLL], 940 [ntp_cv_hdr_def_sigpoll], 941 [AC_PREPROC_IFELSE( 942 [AC_LANG_SOURCE([ 943 #include <signal.h> 944 945 #ifndef SIGPOLL 946 # error 947 #endif 948 ])], 949 [ntp_cv_hdr_def_sigpoll=yes], 950 [ntp_cv_hdr_def_sigpoll=no] 951 )] 952) 953 954AC_MSG_CHECKING([if we can use SIGPOLL for UDP I/O]) 955ans=no 956case "$ntp_cv_hdr_def_sigpoll" in 957 yes) 958 case "$host" in 959 mips-sgi-irix*) 960 ans=no 961 ;; 962 vax-dec-bsd) 963 ans=no 964 ;; 965 *-pc-cygwin*) 966 ans=no 967 ;; 968 *-sni-sysv*) 969 ans=no 970 ;; 971 *-stratus-vos) 972 ans=no 973 ;; 974 *-*-aix[[4-9]]*) 975 # XXX Only verified thru AIX6 976 ans=no 977 ;; 978 *-*-hpux*) 979 ans=no 980 ;; 981 *-*-*linux*) 982 ans=no 983 ;; 984 *-*-osf*) 985 ans=no 986 ;; 987 *-*-qnx*) 988 ans=no 989 ;; 990 *-*-sunos*) 991 ans=no 992 ;; 993 *-*-solaris*) 994 ans=no 995 ;; 996 *-*-ultrix*) 997 ans=no 998 ;; 999 *-*-unicosmp*) 1000 ans=no 1001 ;; 1002 *-*-kfreebsd*) 1003 ans=no 1004 ;; 1005 *) ans=yes 1006 ;; 1007 esac 1008 ;; 1009esac 1010case "$ans" in 1011 yes) 1012 AC_DEFINE([USE_UDP_SIGPOLL], [1], [Can we use SIGPOLL for UDP?]) 1013esac 1014AC_MSG_RESULT([$ans]) 1015 1016AC_MSG_CHECKING([if we can use SIGPOLL for TTY I/O]) 1017ans=no 1018case "$ntp_cv_hdr_def_sigpoll" in 1019 yes) 1020 case "$host" in 1021 mips-sgi-irix*) 1022 ans=no 1023 ;; 1024 vax-dec-bsd) 1025 ans=no 1026 ;; 1027 *-pc-cygwin*) 1028 ans=no 1029 ;; 1030 *-sni-sysv*) 1031 ans=no 1032 ;; 1033 *-stratus-vos) 1034 ans=no 1035 ;; 1036 *-*-aix[[4-9]]*) 1037 # XXX Only verified thru AIX6 1038 ans=no 1039 ;; 1040 *-*-hpux*) 1041 ans=no 1042 ;; 1043 *-*-*linux*) 1044 ans=no 1045 ;; 1046 *-*-osf*) 1047 ans=no 1048 ;; 1049 *-*-sunos*) 1050 ans=no 1051 ;; 1052 *-*-ultrix*) 1053 ans=no 1054 ;; 1055 *-*-qnx*) 1056 ans=no 1057 ;; 1058 *-*-unicosmp*) 1059 ans=no 1060 ;; 1061 *-*-kfreebsd*) 1062 ans=no 1063 ;; 1064 *) ans=yes 1065 ;; 1066 esac 1067 ;; 1068esac 1069case "$ans" in 1070 yes) 1071 AC_DEFINE([USE_TTY_SIGPOLL], [1], [Can we use SIGPOLL for tty IO?]) 1072esac 1073AC_MSG_RESULT([$ans]) 1074 1075AC_CACHE_CHECK( 1076 [number of arguments to gettimeofday()], 1077 [ntp_cv_func_Xettimeofday_nargs], 1078 [AC_COMPILE_IFELSE( 1079 [AC_LANG_PROGRAM( 1080 [[ 1081 #include <sys/time.h> 1082 ]], 1083 [[ 1084 gettimeofday(0, 0); 1085 settimeofday(0, 0); 1086 ]] 1087 )], 1088 [ntp_cv_func_Xettimeofday_nargs=2], 1089 [ntp_cv_func_Xettimeofday_nargs=1] 1090 )] 1091) 1092case "$ntp_cv_func_Xettimeofday_nargs" in 1093 1) 1094 AC_DEFINE([SYSV_TIMEOFDAY], [1], [Does Xettimeofday take 1 arg?]) 1095esac 1096 1097AC_CHECK_FUNCS([settimeofday], ,[ 1098 case "$host" in 1099 *-*-mpeix*) ac_cv_func_settimeofday=yes 1100 esac 1101]) 1102 1103AC_MSG_CHECKING([if we'll use clock_settime or settimeofday or stime]) 1104ntp_warning='GRONK' 1105ans=none 1106case "$ac_cv_func_clock_settime$ac_cv_func_settimeofday$ac_cv_func_stime" in 1107 yes*) 1108 ntp_warning='' 1109 ans='clock_settime()' 1110 ;; 1111 noyes*) 1112 ntp_warning='But clock_settime() would be better (if we had it)' 1113 ans='settimeofday()' 1114 ;; 1115 nonoyes) 1116 ntp_warning='Which is the worst of the three' 1117 ans='stime()' 1118 ;; 1119 *) 1120 case "$build" in 1121 $host) 1122 ntp_warning='Which leaves us with nothing to use!' 1123 esac 1124esac 1125AC_MSG_RESULT([$ans]) 1126case "$ntp_warning" in 1127 '') 1128 ;; 1129 *) 1130 AC_MSG_WARN([*** $ntp_warning ***]) 1131 ;; 1132esac 1133 1134 1135dnl add to LDADD_LIBNTP set by ntp_compiler.m4 1136LDADD_LIBNTP="$LDADD_LIBNTP $LIBS" 1137LIBS=$__LIBS 1138AS_UNSET([__LIBS]) 1139 1140])dnl 1141dnl ====================================================================== 1142