| [14596] | 1 | dnl @(#) $Header: /afs/dev.mit.edu/source/repository/third/traceroute/aclocal.m4,v 1.2 2000-04-11 22:47:47 ghudson Exp $ (LBL) |
|---|
| [10404] | 2 | dnl |
|---|
| 3 | dnl Copyright (c) 1995, 1996, 1997 |
|---|
| 4 | dnl The Regents of the University of California. All rights reserved. |
|---|
| 5 | dnl |
|---|
| 6 | dnl Redistribution and use in source and binary forms, with or without |
|---|
| 7 | dnl modification, are permitted provided that: (1) source code distributions |
|---|
| 8 | dnl retain the above copyright notice and this paragraph in its entirety, (2) |
|---|
| 9 | dnl distributions including binary code include the above copyright notice and |
|---|
| 10 | dnl this paragraph in its entirety in the documentation or other materials |
|---|
| 11 | dnl provided with the distribution, and (3) all advertising materials mentioning |
|---|
| 12 | dnl features or use of this software display the following acknowledgement: |
|---|
| 13 | dnl ``This product includes software developed by the University of California, |
|---|
| 14 | dnl Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
|---|
| 15 | dnl the University nor the names of its contributors may be used to endorse |
|---|
| 16 | dnl or promote products derived from this software without specific prior |
|---|
| 17 | dnl written permission. |
|---|
| 18 | dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
|---|
| 19 | dnl WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
|---|
| 20 | dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
|---|
| 21 | dnl |
|---|
| 22 | dnl LBL autoconf macros |
|---|
| 23 | dnl |
|---|
| 24 | |
|---|
| 25 | dnl |
|---|
| 26 | dnl Determine which compiler we're using (cc or gcc) |
|---|
| 27 | dnl If using gcc, determine the version number |
|---|
| 28 | dnl If using cc, require that it support ansi prototypes |
|---|
| 29 | dnl If using gcc, use -O2 (otherwise use -O) |
|---|
| 30 | dnl If using cc, explicitly specify /usr/local/include |
|---|
| 31 | dnl |
|---|
| 32 | dnl usage: |
|---|
| 33 | dnl |
|---|
| 34 | dnl AC_LBL_C_INIT(copt, incls) |
|---|
| 35 | dnl |
|---|
| 36 | dnl results: |
|---|
| 37 | dnl |
|---|
| 38 | dnl $1 (copt set) |
|---|
| 39 | dnl $2 (incls set) |
|---|
| 40 | dnl CC |
|---|
| 41 | dnl ac_cv_lbl_gcc_vers |
|---|
| 42 | dnl LBL_CFLAGS |
|---|
| 43 | dnl |
|---|
| 44 | AC_DEFUN(AC_LBL_C_INIT, |
|---|
| 45 | [AC_PREREQ(2.12) |
|---|
| 46 | AC_BEFORE([$0], [AC_PROG_CC]) |
|---|
| 47 | AC_BEFORE([$0], [AC_LBL_FIXINCLUDES]) |
|---|
| 48 | AC_BEFORE([$0], [AC_LBL_DEVEL]) |
|---|
| 49 | AC_ARG_WITH(gcc, [ --without-gcc don't use gcc]) |
|---|
| 50 | $1="-O" |
|---|
| 51 | $2="" |
|---|
| 52 | if test "${CFLAGS+set}" = set; then |
|---|
| 53 | LBL_CFLAGS="$CFLAGS" |
|---|
| 54 | fi |
|---|
| 55 | if test -z "$CC" ; then |
|---|
| 56 | case "$target_os" in |
|---|
| 57 | |
|---|
| 58 | bsdi*) |
|---|
| 59 | AC_CHECK_PROG(SHLICC2, shlicc2, yes, no) |
|---|
| 60 | if test $SHLICC2 = yes ; then |
|---|
| 61 | CC=shlicc2 |
|---|
| 62 | export CC |
|---|
| 63 | fi |
|---|
| 64 | ;; |
|---|
| 65 | esac |
|---|
| 66 | fi |
|---|
| 67 | if test -z "$CC" -a "$with_gcc" = no ; then |
|---|
| 68 | CC=cc |
|---|
| 69 | export CC |
|---|
| 70 | fi |
|---|
| 71 | AC_PROG_CC |
|---|
| 72 | if test "$GCC" = yes ; then |
|---|
| 73 | if test "$SHLICC2" = yes ; then |
|---|
| 74 | ac_cv_lbl_gcc_vers=2 |
|---|
| 75 | $1="-O2" |
|---|
| 76 | else |
|---|
| 77 | AC_MSG_CHECKING(gcc version) |
|---|
| 78 | AC_CACHE_VAL(ac_cv_lbl_gcc_vers, |
|---|
| 79 | ac_cv_lbl_gcc_vers=`$CC -v 2>&1 | \ |
|---|
| [14596] | 80 | sed -n -e '$s/\..*//' -e '$s/.* //p'`) |
|---|
| [10404] | 81 | AC_MSG_RESULT($ac_cv_lbl_gcc_vers) |
|---|
| 82 | if test $ac_cv_lbl_gcc_vers -gt 1 ; then |
|---|
| 83 | $1="-O2" |
|---|
| 84 | fi |
|---|
| 85 | fi |
|---|
| 86 | else |
|---|
| 87 | AC_MSG_CHECKING(that $CC handles ansi prototypes) |
|---|
| 88 | AC_CACHE_VAL(ac_cv_lbl_cc_ansi_prototypes, |
|---|
| 89 | AC_TRY_COMPILE( |
|---|
| 90 | [#include <sys/types.h>], |
|---|
| 91 | [int frob(int, char *)], |
|---|
| 92 | ac_cv_lbl_cc_ansi_prototypes=yes, |
|---|
| 93 | ac_cv_lbl_cc_ansi_prototypes=no)) |
|---|
| 94 | AC_MSG_RESULT($ac_cv_lbl_cc_ansi_prototypes) |
|---|
| 95 | if test $ac_cv_lbl_cc_ansi_prototypes = no ; then |
|---|
| 96 | case "$target_os" in |
|---|
| 97 | |
|---|
| 98 | hpux*) |
|---|
| 99 | AC_MSG_CHECKING(for HP-UX ansi compiler ($CC -Aa -D_HPUX_SOURCE)) |
|---|
| 100 | savedcflags="$CFLAGS" |
|---|
| 101 | CFLAGS="-Aa -D_HPUX_SOURCE $CFLAGS" |
|---|
| 102 | AC_CACHE_VAL(ac_cv_lbl_cc_hpux_cc_aa, |
|---|
| 103 | AC_TRY_COMPILE( |
|---|
| 104 | [#include <sys/types.h>], |
|---|
| 105 | [int frob(int, char *)], |
|---|
| 106 | ac_cv_lbl_cc_hpux_cc_aa=yes, |
|---|
| 107 | ac_cv_lbl_cc_hpux_cc_aa=no)) |
|---|
| 108 | AC_MSG_RESULT($ac_cv_lbl_cc_hpux_cc_aa) |
|---|
| 109 | if test $ac_cv_lbl_cc_hpux_cc_aa = no ; then |
|---|
| 110 | AC_MSG_ERROR(see the INSTALL doc for more info) |
|---|
| 111 | fi |
|---|
| 112 | CFLAGS="$savedcflags" |
|---|
| 113 | V_CCOPT="-Aa $V_CCOPT" |
|---|
| 114 | AC_DEFINE(_HPUX_SOURCE) |
|---|
| 115 | ;; |
|---|
| 116 | |
|---|
| 117 | *) |
|---|
| 118 | AC_MSG_ERROR(see the INSTALL doc for more info) |
|---|
| 119 | ;; |
|---|
| 120 | esac |
|---|
| 121 | fi |
|---|
| 122 | $2="-I/usr/local/include" |
|---|
| 123 | |
|---|
| 124 | case "$target_os" in |
|---|
| 125 | |
|---|
| 126 | irix*) |
|---|
| 127 | V_CCOPT="$V_CCOPT -xansi -signed -g3" |
|---|
| 128 | ;; |
|---|
| 129 | |
|---|
| 130 | osf*) |
|---|
| 131 | V_CCOPT="$V_CCOPT -g3" |
|---|
| 132 | ;; |
|---|
| 133 | |
|---|
| 134 | ultrix*) |
|---|
| 135 | AC_MSG_CHECKING(that Ultrix $CC hacks const in prototypes) |
|---|
| 136 | AC_CACHE_VAL(ac_cv_lbl_cc_const_proto, |
|---|
| 137 | AC_TRY_COMPILE( |
|---|
| 138 | [#include <sys/types.h>], |
|---|
| 139 | [struct a { int b; }; |
|---|
| 140 | void c(const struct a *)], |
|---|
| 141 | ac_cv_lbl_cc_const_proto=yes, |
|---|
| 142 | ac_cv_lbl_cc_const_proto=no)) |
|---|
| 143 | AC_MSG_RESULT($ac_cv_lbl_cc_const_proto) |
|---|
| 144 | if test $ac_cv_lbl_cc_const_proto = no ; then |
|---|
| 145 | AC_DEFINE(const,) |
|---|
| 146 | fi |
|---|
| 147 | ;; |
|---|
| 148 | esac |
|---|
| 149 | fi |
|---|
| 150 | ]) |
|---|
| 151 | |
|---|
| 152 | dnl |
|---|
| 153 | dnl Use pfopen.c if available and pfopen() not in standard libraries |
|---|
| 154 | dnl Require libpcap |
|---|
| 155 | dnl Look for libpcap in .. |
|---|
| 156 | dnl Use the installed libpcap if there is no local version |
|---|
| 157 | dnl |
|---|
| 158 | dnl usage: |
|---|
| 159 | dnl |
|---|
| 160 | dnl AC_LBL_LIBPCAP(pcapdep, incls) |
|---|
| 161 | dnl |
|---|
| 162 | dnl results: |
|---|
| 163 | dnl |
|---|
| 164 | dnl $1 (pcapdep set) |
|---|
| 165 | dnl $2 (incls appended) |
|---|
| 166 | dnl LIBS |
|---|
| 167 | dnl LBL_LIBS |
|---|
| 168 | dnl |
|---|
| 169 | AC_DEFUN(AC_LBL_LIBPCAP, |
|---|
| 170 | [AC_REQUIRE([AC_LBL_LIBRARY_NET]) |
|---|
| 171 | dnl |
|---|
| 172 | dnl save a copy before locating libpcap.a |
|---|
| 173 | dnl |
|---|
| 174 | LBL_LIBS="$LIBS" |
|---|
| 175 | pfopen=/usr/examples/packetfilter/pfopen.c |
|---|
| 176 | if test -f $pfopen ; then |
|---|
| 177 | AC_CHECK_FUNCS(pfopen) |
|---|
| 178 | if test $ac_cv_func_pfopen = "no" ; then |
|---|
| 179 | AC_MSG_RESULT(Using $pfopen) |
|---|
| 180 | LIBS="$LIBS $pfopen" |
|---|
| 181 | fi |
|---|
| 182 | fi |
|---|
| 183 | AC_MSG_CHECKING(for local pcap library) |
|---|
| 184 | libpcap=FAIL |
|---|
| 185 | lastdir=FAIL |
|---|
| 186 | places=`ls .. | sed -e 's,/$,,' -e 's,^,../,' | \ |
|---|
| 187 | egrep '/libpcap-[[0-9]]*\.[[0-9]]*(\.[[0-9]]*)?([[ab]][[0-9]]*)?$'` |
|---|
| 188 | for dir in $places ../libpcap libpcap ; do |
|---|
| 189 | basedir=`echo $dir | sed -e 's/[[ab]][[0-9]]*$//'` |
|---|
| 190 | if test $lastdir = $basedir ; then |
|---|
| 191 | dnl skip alphas when an actual release is present |
|---|
| 192 | continue; |
|---|
| 193 | fi |
|---|
| 194 | lastdir=$dir |
|---|
| 195 | if test -r $dir/pcap.c ; then |
|---|
| 196 | libpcap=$dir/libpcap.a |
|---|
| 197 | d=$dir |
|---|
| 198 | dnl continue and select the last one that exists |
|---|
| 199 | fi |
|---|
| 200 | done |
|---|
| 201 | if test $libpcap = FAIL ; then |
|---|
| 202 | AC_MSG_RESULT(not found) |
|---|
| 203 | AC_CHECK_LIB(pcap, main, libpcap="-lpcap") |
|---|
| 204 | if test $libpcap = FAIL ; then |
|---|
| 205 | AC_MSG_ERROR(see the INSTALL doc for more info) |
|---|
| 206 | fi |
|---|
| 207 | else |
|---|
| 208 | $1=$libpcap |
|---|
| 209 | $2="-I$d $$2" |
|---|
| 210 | AC_MSG_RESULT($libpcap) |
|---|
| 211 | fi |
|---|
| 212 | LIBS="$libpcap $LIBS"]) |
|---|
| 213 | |
|---|
| 214 | dnl |
|---|
| 215 | dnl Define RETSIGTYPE and RETSIGVAL |
|---|
| 216 | dnl |
|---|
| 217 | dnl usage: |
|---|
| 218 | dnl |
|---|
| 219 | dnl AC_LBL_TYPE_SIGNAL |
|---|
| 220 | dnl |
|---|
| 221 | dnl results: |
|---|
| 222 | dnl |
|---|
| 223 | dnl RETSIGTYPE (defined) |
|---|
| 224 | dnl RETSIGVAL (defined) |
|---|
| 225 | dnl |
|---|
| 226 | AC_DEFUN(AC_LBL_TYPE_SIGNAL, |
|---|
| 227 | [AC_BEFORE([$0], [AC_LBL_LIBPCAP]) |
|---|
| 228 | AC_TYPE_SIGNAL |
|---|
| 229 | if test "$ac_cv_type_signal" = void ; then |
|---|
| 230 | AC_DEFINE(RETSIGVAL,) |
|---|
| 231 | else |
|---|
| 232 | AC_DEFINE(RETSIGVAL,(0)) |
|---|
| 233 | fi |
|---|
| 234 | case "$target_os" in |
|---|
| 235 | |
|---|
| 236 | irix*) |
|---|
| 237 | AC_DEFINE(_BSD_SIGNALS) |
|---|
| 238 | ;; |
|---|
| 239 | |
|---|
| 240 | *) |
|---|
| 241 | dnl prefer sigset() to sigaction() |
|---|
| 242 | AC_CHECK_FUNCS(sigset) |
|---|
| 243 | if test $ac_cv_func_sigset = no ; then |
|---|
| 244 | AC_CHECK_FUNCS(sigaction) |
|---|
| 245 | fi |
|---|
| 246 | ;; |
|---|
| 247 | esac]) |
|---|
| 248 | |
|---|
| 249 | dnl |
|---|
| 250 | dnl If using gcc, make sure we have ANSI ioctl definitions |
|---|
| 251 | dnl |
|---|
| 252 | dnl usage: |
|---|
| 253 | dnl |
|---|
| 254 | dnl AC_LBL_FIXINCLUDES |
|---|
| 255 | dnl |
|---|
| 256 | AC_DEFUN(AC_LBL_FIXINCLUDES, |
|---|
| 257 | [if test "$GCC" = yes ; then |
|---|
| 258 | AC_MSG_CHECKING(for ANSI ioctl definitions) |
|---|
| 259 | AC_CACHE_VAL(ac_cv_lbl_gcc_fixincludes, |
|---|
| 260 | AC_TRY_COMPILE( |
|---|
| 261 | [/* |
|---|
| 262 | * This generates a "duplicate case value" when fixincludes |
|---|
| 263 | * has not be run. |
|---|
| 264 | */ |
|---|
| 265 | # include <sys/types.h> |
|---|
| 266 | # include <sys/time.h> |
|---|
| 267 | # include <sys/ioctl.h> |
|---|
| 268 | # ifdef HAVE_SYS_IOCCOM_H |
|---|
| 269 | # include <sys/ioccom.h> |
|---|
| 270 | # endif], |
|---|
| 271 | [switch (0) { |
|---|
| 272 | case _IO('A', 1):; |
|---|
| 273 | case _IO('B', 1):; |
|---|
| 274 | }], |
|---|
| 275 | ac_cv_lbl_gcc_fixincludes=yes, |
|---|
| 276 | ac_cv_lbl_gcc_fixincludes=no)) |
|---|
| 277 | AC_MSG_RESULT($ac_cv_lbl_gcc_fixincludes) |
|---|
| 278 | if test $ac_cv_lbl_gcc_fixincludes = no ; then |
|---|
| 279 | # Don't cache failure |
|---|
| 280 | unset ac_cv_lbl_gcc_fixincludes |
|---|
| 281 | AC_MSG_ERROR(see the INSTALL for more info) |
|---|
| 282 | fi |
|---|
| 283 | fi]) |
|---|
| 284 | |
|---|
| 285 | dnl |
|---|
| 286 | dnl Check for flex, default to lex |
|---|
| 287 | dnl Require flex 2.4 or higher |
|---|
| 288 | dnl Check for bison, default to yacc |
|---|
| 289 | dnl Default to lex/yacc if both flex and bison are not available |
|---|
| 290 | dnl Define the yy prefix string if using flex and bison |
|---|
| 291 | dnl |
|---|
| 292 | dnl usage: |
|---|
| 293 | dnl |
|---|
| 294 | dnl AC_LBL_LEX_AND_YACC(lex, yacc, yyprefix) |
|---|
| 295 | dnl |
|---|
| 296 | dnl results: |
|---|
| 297 | dnl |
|---|
| 298 | dnl $1 (lex set) |
|---|
| 299 | dnl $2 (yacc appended) |
|---|
| 300 | dnl $3 (optional flex and bison -P prefix) |
|---|
| 301 | dnl |
|---|
| 302 | AC_DEFUN(AC_LBL_LEX_AND_YACC, |
|---|
| 303 | [AC_ARG_WITH(flex, [ --without-flex don't use flex]) |
|---|
| 304 | AC_ARG_WITH(bison, [ --without-bison don't use bison]) |
|---|
| 305 | if test "$with_flex" = no ; then |
|---|
| 306 | $1=lex |
|---|
| 307 | else |
|---|
| 308 | AC_CHECK_PROGS($1, flex, lex) |
|---|
| 309 | fi |
|---|
| 310 | if test "$$1" = flex ; then |
|---|
| 311 | # The -V flag was added in 2.4 |
|---|
| 312 | AC_MSG_CHECKING(for flex 2.4 or higher) |
|---|
| 313 | AC_CACHE_VAL(ac_cv_lbl_flex_v24, |
|---|
| 314 | if flex -V >/dev/null 2>&1; then |
|---|
| 315 | ac_cv_lbl_flex_v24=yes |
|---|
| 316 | else |
|---|
| 317 | ac_cv_lbl_flex_v24=no |
|---|
| 318 | fi) |
|---|
| 319 | AC_MSG_RESULT($ac_cv_lbl_flex_v24) |
|---|
| 320 | if test $ac_cv_lbl_flex_v24 = no ; then |
|---|
| 321 | s="2.4 or higher required" |
|---|
| 322 | AC_MSG_WARN(ignoring obsolete flex executable ($s)) |
|---|
| 323 | $1=lex |
|---|
| 324 | fi |
|---|
| 325 | fi |
|---|
| 326 | if test "$with_bison" = no ; then |
|---|
| 327 | $2=yacc |
|---|
| 328 | else |
|---|
| 329 | AC_CHECK_PROGS($2, bison, yacc) |
|---|
| 330 | fi |
|---|
| 331 | if test "$$2" = bison ; then |
|---|
| 332 | $2="$$2 -y" |
|---|
| 333 | fi |
|---|
| 334 | if test "$$1" != lex -a "$$2" = yacc -o "$$1" = lex -a "$$2" != yacc ; then |
|---|
| 335 | AC_MSG_WARN(don't have both flex and bison; reverting to lex/yacc) |
|---|
| 336 | $1=lex |
|---|
| 337 | $2=yacc |
|---|
| 338 | fi |
|---|
| 339 | if test "$$1" = flex -a -n "$3" ; then |
|---|
| 340 | $1="$$1 -P$3" |
|---|
| 341 | $2="$$2 -p $3" |
|---|
| 342 | fi]) |
|---|
| 343 | |
|---|
| 344 | dnl |
|---|
| 345 | dnl Checks to see if union wait is used with WEXITSTATUS() |
|---|
| 346 | dnl |
|---|
| 347 | dnl usage: |
|---|
| 348 | dnl |
|---|
| 349 | dnl AC_LBL_UNION_WAIT |
|---|
| 350 | dnl |
|---|
| 351 | dnl results: |
|---|
| 352 | dnl |
|---|
| 353 | dnl DECLWAITSTATUS (defined) |
|---|
| 354 | dnl |
|---|
| 355 | AC_DEFUN(AC_LBL_UNION_WAIT, |
|---|
| 356 | [AC_MSG_CHECKING(if union wait is used) |
|---|
| 357 | AC_CACHE_VAL(ac_cv_lbl_union_wait, |
|---|
| 358 | AC_TRY_COMPILE([ |
|---|
| 359 | # include <sys/types.h> |
|---|
| 360 | # include <sys/wait.h>], |
|---|
| 361 | [int status; |
|---|
| 362 | u_int i = WEXITSTATUS(status); |
|---|
| 363 | u_int j = waitpid(0, &status, 0);], |
|---|
| 364 | ac_cv_lbl_union_wait=no, |
|---|
| 365 | ac_cv_lbl_union_wait=yes)) |
|---|
| 366 | AC_MSG_RESULT($ac_cv_lbl_union_wait) |
|---|
| 367 | if test $ac_cv_lbl_union_wait = yes ; then |
|---|
| 368 | AC_DEFINE(DECLWAITSTATUS,union wait) |
|---|
| 369 | else |
|---|
| 370 | AC_DEFINE(DECLWAITSTATUS,int) |
|---|
| 371 | fi]) |
|---|
| 372 | |
|---|
| 373 | dnl |
|---|
| 374 | dnl Checks to see if the sockaddr struct has the 4.4 BSD sa_len member |
|---|
| 375 | dnl |
|---|
| 376 | dnl usage: |
|---|
| 377 | dnl |
|---|
| 378 | dnl AC_LBL_SOCKADDR_SA_LEN |
|---|
| 379 | dnl |
|---|
| 380 | dnl results: |
|---|
| 381 | dnl |
|---|
| 382 | dnl HAVE_SOCKADDR_SA_LEN (defined) |
|---|
| 383 | dnl |
|---|
| 384 | AC_DEFUN(AC_LBL_SOCKADDR_SA_LEN, |
|---|
| 385 | [AC_MSG_CHECKING(if sockaddr struct has sa_len member) |
|---|
| 386 | AC_CACHE_VAL(ac_cv_lbl_sockaddr_has_sa_len, |
|---|
| 387 | AC_TRY_COMPILE([ |
|---|
| 388 | # include <sys/types.h> |
|---|
| 389 | # include <sys/socket.h>], |
|---|
| 390 | [u_int i = sizeof(((struct sockaddr *)0)->sa_len)], |
|---|
| 391 | ac_cv_lbl_sockaddr_has_sa_len=yes, |
|---|
| 392 | ac_cv_lbl_sockaddr_has_sa_len=no)) |
|---|
| 393 | AC_MSG_RESULT($ac_cv_lbl_sockaddr_has_sa_len) |
|---|
| 394 | if test $ac_cv_lbl_sockaddr_has_sa_len = yes ; then |
|---|
| 395 | AC_DEFINE(HAVE_SOCKADDR_SA_LEN) |
|---|
| 396 | fi]) |
|---|
| 397 | |
|---|
| 398 | dnl |
|---|
| 399 | dnl Checks to see if -R is used |
|---|
| 400 | dnl |
|---|
| 401 | dnl usage: |
|---|
| 402 | dnl |
|---|
| 403 | dnl AC_LBL_HAVE_RUN_PATH |
|---|
| 404 | dnl |
|---|
| 405 | dnl results: |
|---|
| 406 | dnl |
|---|
| 407 | dnl ac_cv_lbl_have_run_path (yes or no) |
|---|
| 408 | dnl |
|---|
| 409 | AC_DEFUN(AC_LBL_HAVE_RUN_PATH, |
|---|
| 410 | [AC_MSG_CHECKING(for ${CC-cc} -R) |
|---|
| 411 | AC_CACHE_VAL(ac_cv_lbl_have_run_path, |
|---|
| 412 | [echo 'main(){}' > conftest.c |
|---|
| 413 | ${CC-cc} -o conftest conftest.c -R/a1/b2/c3 >conftest.out 2>&1 |
|---|
| 414 | if test ! -s conftest.out ; then |
|---|
| 415 | ac_cv_lbl_have_run_path=yes |
|---|
| 416 | else |
|---|
| 417 | ac_cv_lbl_have_run_path=no |
|---|
| 418 | fi |
|---|
| 419 | rm -f conftest*]) |
|---|
| 420 | AC_MSG_RESULT($ac_cv_lbl_have_run_path) |
|---|
| 421 | ]) |
|---|
| 422 | |
|---|
| 423 | dnl |
|---|
| 424 | dnl Due to the stupid way it's implemented, AC_CHECK_TYPE is nearly useless. |
|---|
| 425 | dnl |
|---|
| 426 | dnl usage: |
|---|
| 427 | dnl |
|---|
| 428 | dnl AC_LBL_CHECK_TYPE |
|---|
| 429 | dnl |
|---|
| 430 | dnl results: |
|---|
| 431 | dnl |
|---|
| 432 | dnl int32_t (defined) |
|---|
| 433 | dnl u_int32_t (defined) |
|---|
| 434 | dnl |
|---|
| 435 | AC_DEFUN(AC_LBL_CHECK_TYPE, |
|---|
| 436 | [AC_MSG_CHECKING(for $1 using $CC) |
|---|
| 437 | AC_CACHE_VAL(ac_cv_lbl_have_$1, |
|---|
| 438 | AC_TRY_COMPILE([ |
|---|
| 439 | # include "confdefs.h" |
|---|
| 440 | # include <sys/types.h> |
|---|
| 441 | # if STDC_HEADERS |
|---|
| 442 | # include <stdlib.h> |
|---|
| 443 | # include <stddef.h> |
|---|
| 444 | # endif], |
|---|
| 445 | [$1 i], |
|---|
| 446 | ac_cv_lbl_have_$1=yes, |
|---|
| 447 | ac_cv_lbl_have_$1=no)) |
|---|
| 448 | AC_MSG_RESULT($ac_cv_lbl_have_$1) |
|---|
| 449 | if test $ac_cv_lbl_have_$1 = no ; then |
|---|
| 450 | AC_DEFINE($1, $2) |
|---|
| 451 | fi]) |
|---|
| 452 | |
|---|
| 453 | dnl |
|---|
| 454 | dnl Checks to see if unaligned memory accesses fail |
|---|
| 455 | dnl |
|---|
| 456 | dnl usage: |
|---|
| 457 | dnl |
|---|
| 458 | dnl AC_LBL_UNALIGNED_ACCESS |
|---|
| 459 | dnl |
|---|
| 460 | dnl results: |
|---|
| 461 | dnl |
|---|
| 462 | dnl LBL_ALIGN (DEFINED) |
|---|
| 463 | dnl |
|---|
| 464 | AC_DEFUN(AC_LBL_UNALIGNED_ACCESS, |
|---|
| 465 | [AC_MSG_CHECKING(if unaligned accesses fail) |
|---|
| 466 | AC_CACHE_VAL(ac_cv_lbl_unaligned_fail, |
|---|
| 467 | [case "$target_cpu" in |
|---|
| 468 | |
|---|
| 469 | alpha|hp*|mips|sparc) |
|---|
| 470 | ac_cv_lbl_unaligned_fail=yes |
|---|
| 471 | ;; |
|---|
| 472 | |
|---|
| 473 | *) |
|---|
| 474 | cat >conftest.c <<EOF |
|---|
| 475 | # include <sys/types.h> |
|---|
| 476 | # include <sys/wait.h> |
|---|
| 477 | # include <stdio.h> |
|---|
| 478 | unsigned char a[[5]] = { 1, 2, 3, 4, 5 }; |
|---|
| 479 | main() { |
|---|
| 480 | unsigned int i; |
|---|
| 481 | pid_t pid; |
|---|
| 482 | int status; |
|---|
| 483 | /* avoid "core dumped" message */ |
|---|
| 484 | pid = fork(); |
|---|
| 485 | if (pid < 0) |
|---|
| 486 | exit(2); |
|---|
| 487 | if (pid > 0) { |
|---|
| 488 | /* parent */ |
|---|
| 489 | pid = waitpid(pid, &status, 0); |
|---|
| 490 | if (pid < 0) |
|---|
| 491 | exit(3); |
|---|
| 492 | exit(!WIFEXITED(status)); |
|---|
| 493 | } |
|---|
| 494 | /* child */ |
|---|
| 495 | i = *(unsigned int *)&a[[1]]; |
|---|
| 496 | printf("%d\n", i); |
|---|
| 497 | exit(0); |
|---|
| 498 | } |
|---|
| 499 | EOF |
|---|
| 500 | ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS \ |
|---|
| 501 | conftest.c $LIBS >/dev/null 2>&1 |
|---|
| 502 | if test ! -x conftest ; then |
|---|
| 503 | dnl failed to compile for some reason |
|---|
| 504 | ac_cv_lbl_unaligned_fail=yes |
|---|
| 505 | else |
|---|
| 506 | ./conftest >conftest.out |
|---|
| 507 | if test ! -s conftest.out ; then |
|---|
| 508 | ac_cv_lbl_unaligned_fail=yes |
|---|
| 509 | else |
|---|
| 510 | ac_cv_lbl_unaligned_fail=no |
|---|
| 511 | fi |
|---|
| 512 | fi |
|---|
| 513 | rm -f conftest* core core.conftest |
|---|
| 514 | ;; |
|---|
| 515 | esac]) |
|---|
| 516 | AC_MSG_RESULT($ac_cv_lbl_unaligned_fail) |
|---|
| 517 | if test $ac_cv_lbl_unaligned_fail = yes ; then |
|---|
| 518 | AC_DEFINE(LBL_ALIGN) |
|---|
| 519 | fi]) |
|---|
| 520 | |
|---|
| 521 | dnl |
|---|
| 522 | dnl If using gcc and the file .devel exists: |
|---|
| 523 | dnl Compile with -g (if supported) and -Wall |
|---|
| 524 | dnl If using gcc 2, do extra prototype checking |
|---|
| 525 | dnl If an os prototype include exists, symlink os-proto.h to it |
|---|
| 526 | dnl |
|---|
| 527 | dnl usage: |
|---|
| 528 | dnl |
|---|
| 529 | dnl AC_LBL_DEVEL(copt) |
|---|
| 530 | dnl |
|---|
| 531 | dnl results: |
|---|
| 532 | dnl |
|---|
| 533 | dnl $1 (copt appended) |
|---|
| 534 | dnl HAVE_OS_PROTO_H (defined) |
|---|
| 535 | dnl os-proto.h (symlinked) |
|---|
| 536 | dnl |
|---|
| 537 | AC_DEFUN(AC_LBL_DEVEL, |
|---|
| 538 | [rm -f os-proto.h |
|---|
| 539 | if test "${LBL_CFLAGS+set}" = set; then |
|---|
| 540 | $1="$$1 ${LBL_CFLAGS}" |
|---|
| 541 | fi |
|---|
| 542 | if test -f .devel ; then |
|---|
| 543 | if test "$GCC" = yes ; then |
|---|
| 544 | if test "${LBL_CFLAGS+set}" != set; then |
|---|
| 545 | if test "$ac_cv_prog_cc_g" = yes ; then |
|---|
| 546 | $1="-g $$1" |
|---|
| 547 | fi |
|---|
| 548 | $1="$$1 -Wall" |
|---|
| 549 | if test $ac_cv_lbl_gcc_vers -gt 1 ; then |
|---|
| 550 | $1="$$1 -Wmissing-prototypes -Wstrict-prototypes" |
|---|
| 551 | fi |
|---|
| 552 | fi |
|---|
| 553 | else |
|---|
| 554 | case "$target_os" in |
|---|
| 555 | |
|---|
| 556 | irix6*) |
|---|
| 557 | V_CCOPT="$V_CCOPT -n32" |
|---|
| 558 | ;; |
|---|
| 559 | |
|---|
| 560 | *) |
|---|
| 561 | ;; |
|---|
| 562 | esac |
|---|
| 563 | fi |
|---|
| 564 | os=`echo $target_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'` |
|---|
| 565 | name="lbl/os-$os.h" |
|---|
| 566 | if test -f $name ; then |
|---|
| 567 | ln -s $name os-proto.h |
|---|
| 568 | AC_DEFINE(HAVE_OS_PROTO_H) |
|---|
| 569 | else |
|---|
| 570 | AC_MSG_WARN(can't find $name) |
|---|
| 571 | fi |
|---|
| 572 | fi]) |
|---|
| 573 | |
|---|
| 574 | dnl |
|---|
| 575 | dnl Attempt to determine additional libraries needed for network programs |
|---|
| 576 | dnl |
|---|
| 577 | dnl Thanks to John Hawkinson (jhawk@mit.edu) |
|---|
| 578 | dnl |
|---|
| 579 | dnl usage: |
|---|
| 580 | dnl |
|---|
| 581 | dnl AC_LBL_LIBRARY_NET |
|---|
| 582 | dnl |
|---|
| 583 | dnl results: |
|---|
| 584 | dnl |
|---|
| 585 | dnl LIBS |
|---|
| 586 | dnl |
|---|
| 587 | |
|---|
| 588 | define(AC_LBL_CHECK_LIB, |
|---|
| 589 | [AC_MSG_CHECKING([for $2 in -l$1]) |
|---|
| 590 | dnl Use a cache variable name containing both the library and function name, |
|---|
| 591 | dnl because the test really is for library $1 defining function $2, not |
|---|
| 592 | dnl just for library $1. Separate tests with the same $1 and different $2s |
|---|
| 593 | dnl may have different results. |
|---|
| 594 | ac_lib_var=`echo $1['_']$2['_']$5 | sed 'y%./+- %__p__%'` |
|---|
| 595 | AC_CACHE_VAL(ac_cv_lbl_lib_$ac_lib_var, |
|---|
| 596 | [ac_save_LIBS="$LIBS" |
|---|
| 597 | LIBS="-l$1 $5 $LIBS" |
|---|
| 598 | AC_TRY_LINK(dnl |
|---|
| 599 | ifelse([$2], [main], , dnl Avoid conflicting decl of main. |
|---|
| 600 | [/* Override any gcc2 internal prototype to avoid an error. */ |
|---|
| 601 | ]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus |
|---|
| 602 | extern "C" |
|---|
| 603 | #endif |
|---|
| 604 | ])dnl |
|---|
| 605 | [/* We use char because int might match the return type of a gcc2 |
|---|
| 606 | builtin and then its argument prototype would still apply. */ |
|---|
| 607 | char $2(); |
|---|
| 608 | ]), |
|---|
| 609 | [$2()], |
|---|
| 610 | eval "ac_cv_lbl_lib_$ac_lib_var=yes", |
|---|
| 611 | eval "ac_cv_lbl_lib_$ac_lib_var=no") |
|---|
| 612 | LIBS="$ac_save_LIBS" |
|---|
| 613 | ])dnl |
|---|
| 614 | if eval "test \"`echo '$ac_cv_lbl_lib_'$ac_lib_var`\" = yes"; then |
|---|
| 615 | AC_MSG_RESULT(yes) |
|---|
| 616 | ifelse([$3], , |
|---|
| 617 | [changequote(, )dnl |
|---|
| 618 | ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \ |
|---|
| 619 | -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'` |
|---|
| 620 | changequote([, ])dnl |
|---|
| 621 | AC_DEFINE_UNQUOTED($ac_tr_lib) |
|---|
| 622 | LIBS="-l$1 $LIBS" |
|---|
| 623 | ], [$3]) |
|---|
| 624 | else |
|---|
| 625 | AC_MSG_RESULT(no) |
|---|
| 626 | ifelse([$4], , , [$4 |
|---|
| 627 | ])dnl |
|---|
| 628 | fi |
|---|
| 629 | ]) |
|---|
| 630 | |
|---|
| 631 | dnl |
|---|
| 632 | dnl AC_LBL_LIBRARY_NET |
|---|
| 633 | dnl |
|---|
| 634 | dnl This test is for network applications that need socket() and |
|---|
| 635 | dnl gethostbyname() -ish functions. Under Solaris, those applications |
|---|
| 636 | dnl need to link with "-lsocket -lnsl". Under IRIX, they need to link |
|---|
| 637 | dnl with "-lnsl" but should *not* link with "-lsocket" because |
|---|
| 638 | dnl libsocket.a breaks a number of things (for instance: |
|---|
| 639 | dnl gethostbyname() under IRIX 5.2, and snoop sockets under most |
|---|
| 640 | dnl versions of IRIX). |
|---|
| 641 | dnl |
|---|
| 642 | dnl Unfortunately, many application developers are not aware of this, |
|---|
| 643 | dnl and mistakenly write tests that cause -lsocket to be used under |
|---|
| 644 | dnl IRIX. It is also easy to write tests that cause -lnsl to be used |
|---|
| 645 | dnl under operating systems where neither are necessary (or useful), |
|---|
| 646 | dnl such as SunOS 4.1.4, which uses -lnsl for TLI. |
|---|
| 647 | dnl |
|---|
| 648 | dnl This test exists so that every application developer does not test |
|---|
| 649 | dnl this in a different, and subtly broken fashion. |
|---|
| 650 | |
|---|
| 651 | dnl It has been argued that this test should be broken up into two |
|---|
| 652 | dnl seperate tests, one for the resolver libraries, and one for the |
|---|
| 653 | dnl libraries necessary for using Sockets API. Unfortunately, the two |
|---|
| 654 | dnl are carefully intertwined and allowing the autoconf user to use |
|---|
| 655 | dnl them independantly potentially results in unfortunate ordering |
|---|
| 656 | dnl dependancies -- as such, such component macros would have to |
|---|
| 657 | dnl carefully use indirection and be aware if the other components were |
|---|
| 658 | dnl executed. Since other autoconf macros do not go to this trouble, |
|---|
| 659 | dnl and almost no applications use sockets without the resolver, this |
|---|
| 660 | dnl complexity has not been implemented. |
|---|
| 661 | dnl |
|---|
| 662 | dnl The check for libresolv is in case you are attempting to link |
|---|
| 663 | dnl statically and happen to have a libresolv.a lying around (and no |
|---|
| 664 | dnl libnsl.a). |
|---|
| 665 | dnl |
|---|
| 666 | AC_DEFUN(AC_LBL_LIBRARY_NET, [ |
|---|
| 667 | # Most operating systems have gethostbyname() in the default searched |
|---|
| 668 | # libraries (i.e. libc): |
|---|
| 669 | AC_CHECK_FUNC(gethostbyname, , |
|---|
| 670 | # Some OSes (eg. Solaris) place it in libnsl: |
|---|
| 671 | AC_LBL_CHECK_LIB(nsl, gethostbyname, , |
|---|
| 672 | # Some strange OSes (SINIX) have it in libsocket: |
|---|
| 673 | AC_LBL_CHECK_LIB(socket, gethostbyname, , |
|---|
| 674 | # Unfortunately libsocket sometimes depends on libnsl. |
|---|
| 675 | # AC_CHECK_LIB's API is essentially broken so the |
|---|
| 676 | # following ugliness is necessary: |
|---|
| 677 | AC_LBL_CHECK_LIB(socket, gethostbyname, |
|---|
| 678 | LIBS="-lsocket -lnsl $LIBS", |
|---|
| 679 | AC_CHECK_LIB(resolv, gethostbyname), |
|---|
| 680 | -lnsl)))) |
|---|
| 681 | AC_CHECK_FUNC(socket, , AC_CHECK_LIB(socket, socket, , |
|---|
| 682 | AC_LBL_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", , |
|---|
| 683 | -lnsl))) |
|---|
| 684 | # DLPI needs putmsg under HPUX so test for -lstr while we're at it |
|---|
| 685 | AC_CHECK_LIB(str, putmsg) |
|---|
| 686 | ]) |
|---|
