external/ibm-public/postfix/dist/makedefs

   1 #!/bin/sh
   2
   3 #++
   4 # NAME
   5 #       makedefs 1
   6 # SUMMARY
   7 #       makefile configuration utility
   8 # SYNOPSIS
   9 #       \fBmake makefiles \fIname=value...\fR
  10 # DESCRIPTION
  11 #       The \fBmakedefs\fR command identifies the compilation
  12 #       environment, and emits macro definitions on the standard output
  13 #       stream that can be prepended to template Makefiles.
  14 #
  15 #       Default settings can be overruled by specifying them as
  16 #       environment variables. Use quotes if variables contain
  17 #       whitespace or shell meta characters.
  18 # .IP \fBAUXLIBS=\fIobject_library...\fR
  19 #       Specifies one or more non-default object libraries.
  20 # .IP \fBCC=\fIcompiler_command\fR
  21 #       Specifies a non-default compiler. On many systems, the default
  22 #       is \fBgcc\fR.
  23 # .IP \fBCCARGS=\fIcompiler_arguments\fR
  24 #       Specifies non-default compiler arguments, for example, a non-default
  25 #       \fIinclude\fR directory.
  26 #       The following directives are special:
  27 # .RS
  28 # .IP \fB-DNO_DEVPOLL\fR
  29 #       Do not build with Solaris /dev/poll support.
  30 #       By default, /dev/poll support is compiled in on platforms that
  31 #       are known to support it.
  32 # .IP \fB-DNO_EPOLL\fR
  33 #       Do not build with Linux EPOLL support.
  34 #       By default, EPOLL support is compiled in on platforms that
  35 #       are known to support it.
  36 # .IP \fB-DNO_IPV6\fR
  37 #       Do not build with IPv6 support.
  38 #       By default, IPv6 support is compiled in on platforms that
  39 #       are known to have IPv6 support.
  40 #
  41 #       Note: this directive is for debugging and testing only. It
  42 #       is not guaranteed to work on all platforms.
  43 # .IP \fB-DNO_KQUEUE\fR
  44 #       Do not build with FreeBSD/NetBSD/OpenBSD/MacOSX KQUEUE support.
  45 #       By default, KQUEUE support is compiled in on platforms that
  46 #       are known to support it.
  47 # .IP \fB-DNO_PCRE\fR
  48 #       Do not build with PCRE support.
  49 #       By default, PCRE support is compiled in when the \fBpcre-config\fR
  50 #       utility is installed.
  51 # .IP \fB-DNO_SIGSETJMP\fR
  52 #       Use setjmp()/longjmp() instead of sigsetjmp()/siglongjmp().
  53 #       By default, Postfix uses sigsetjmp()/siglongjmp() when they
  54 #       appear to work.
  55 # .RE
  56 # .IP \fBDEBUG=\fIdebug_level\fR
  57 #       Specifies a non-default debugging level. The default is \fB-g\fR.
  58 #       Specify \fBDEBUG=\fR to turn off debugging.
  59 # .IP \fBOPT=\fIoptimization_level\fR
  60 #       Specifies a non-default optimization level. The default is \fB-O\fR.
  61 #       Specify \fBOPT=\fR to turn off optimization.
  62 # .IP \fBWARN=\fIwarning_flags\fR
  63 #       Specifies non-default gcc compiler warning options for use when
  64 #       "make" is invoked in a source subdirectory only.
  65 # LICENSE
  66 # .ad
  67 # .fi
  68 #       The Secure Mailer license must be distributed with this software.
  69 # AUTHOR(S)
  70 #       Wietse Venema
  71 #       IBM T.J. Watson Research
  72 #       P.O. Box 704
  73 #       Yorktown Heights, NY 10598, USA
  74 #--
  75
  76 # Emit system-dependent Makefile macro definitions to standard output.
  77
  78 # Defaults for most sane systems
  79
  80 RANLIB=ranlib
  81 SYSLIBS=
  82 AR=ar
  83 ARFL=rv
  84
  85 # Ugly function to make our error message more visible among the
  86 # garbage that is output by some versions of make(1).
  87
  88 # By now all shells must have functions.
  89
  90 error() {
  91    # Alas, tput(1) is not portable so we can't use visual effects.
  92    echo "ATTENTION:" 1>&2;
  93    echo "ATTENTION:" $* 1>&2;
  94    echo "ATTENTION:" 1>&2;
  95    exit 1
  96 }
  97
  98 case $# in
  99  # Officially supported usage.
 100  0) SYSTEM=`(uname -s) 2>/dev/null`
 101     RELEASE=`(uname -r) 2>/dev/null`
 102     VERSION=`(uname -v) 2>/dev/null`
 103     case "$VERSION" in
 104      dcosx*) SYSTEM=$VERSION;;
 105     esac;;
 106  # Unsupported debug-only mode. Not suitable for cross-platform tests.
 107  2) SYSTEM="$1"; RELEASE="$2";;
 108  *) echo usage: $0 [system release] 1>&2; exit 1;;
 109 esac
 110
 111 case "$SYSTEM.$RELEASE" in
 112    SCO_SV.3.2)  SYSTYPE=SCO5
 113                 # Use the native compiler by default
 114                 : ${CC="/usr/bin/cc -b elf"}
 115                 CCARGS="$CCARGS -DPIPES_CANT_FIONREAD $CCARGS"
 116                 SYSLIBS="-lsocket -ldbm"
 117                 RANLIB=echo
 118                 ;;
 119   UnixWare.5*)  SYSTYPE=UW7
 120                 # Use the native compiler by default
 121                 : ${CC=/usr/bin/cc}
 122                 RANLIB=echo
 123                 SYSLIBS="-lresolv -lsocket -lnsl"
 124                 ;;
 125   UNIX_SV.4.2*) case "`uname -v`" in
 126               2.1*) SYSTYPE=UW21
 127                     # Use the native compiler by default
 128                     : ${CC=/usr/bin/cc}
 129                     RANLIB=echo
 130                     SYSLIBS="-lresolv -lsocket -lnsl -lc -L/usr/ucblib -lucb"
 131                     ;;
 132               *) error "Seems to be UnixWare`uname -v`. Untested.";;
 133                 esac
 134                 ;;
 135   FreeBSD.2*)   SYSTYPE=FREEBSD2
 136                 ;;
 137   FreeBSD.3*)   SYSTYPE=FREEBSD3
 138                 ;;
 139   FreeBSD.4*)   SYSTYPE=FREEBSD4
 140                 ;;
 141   FreeBSD.5*)   SYSTYPE=FREEBSD5
 142                 ;;
 143   FreeBSD.6*)   SYSTYPE=FREEBSD6
 144                 ;;
 145   FreeBSD.7*)   SYSTYPE=FREEBSD7
 146                 ;;
 147   OpenBSD.2*)   SYSTYPE=OPENBSD2
 148                 ;;
 149   OpenBSD.3*)   SYSTYPE=OPENBSD3
 150                 ;;
 151   OpenBSD.4*)   SYSTYPE=OPENBSD4
 152                 ;;
 153   ekkoBSD.1*)   SYSTYPE=EKKOBSD1
 154                 ;;
 155    NetBSD.1*)   SYSTYPE=NETBSD1
 156                 ;;
 157    NetBSD.2*)   SYSTYPE=NETBSD2
 158                 ;;
 159    NetBSD.3*)   SYSTYPE=NETBSD3
 160                 ;;
 161    NetBSD.4*)   SYSTYPE=NETBSD4
 162                 ;;
 163    BSD/OS.2*)   SYSTYPE=BSDI2
 164                 ;;
 165    BSD/OS.3*)   SYSTYPE=BSDI3
 166                 ;;
 167    BSD/OS.4*)   SYSTYPE=BSDI4
 168                 ;;
 169  OSF1.V[3-5].*) SYSTYPE=OSF1
 170                 # Use the native compiler by default
 171                 : ${CC=cc}
 172                 : ${DEBUG="-g3"}
 173                 case $RELEASE in
 174                 V[0-4].*) CCARGS="$CCARGS -DNO_IPV6";;
 175                 esac
 176                 ;;
 177     SunOS.4*)   SYSTYPE=SUNOS4
 178                 SYSLIBS=-lresolv
 179                 ;;
 180     SunOS.5*)   SYSTYPE=SUNOS5
 181                 RANLIB=echo
 182                 SYSLIBS="-lresolv -lsocket -lnsl"
 183                 # Stock awk breaks with >10 files.
 184                 test -x /usr/xpg4/bin/awk && AWK=/usr/xpg4/bin/awk
 185                 # Solaris 2.5 added usleep() and POSIX regular expressions
 186                 case $RELEASE in
 187                     5.[0-4]) CCARGS="$CCARGS -DMISSING_USLEEP -DNO_POSIX_REGEXP";;
 188                 esac
 189                 # Solaris 8 added IPv6 and /dev/poll
 190                 case $RELEASE in
 191                     5.[0-7]|5.[0-7].*) CCARGS="$CCARGS -DNO_IPV6 -DNO_DEVPOLL";;
 192                 esac
 193                 # Solaris 9 added closefrom(), futimesat() and /dev/*random
 194                 case $RELEASE in
 195                     5.[0-8]|5.[0-8].*) CCARGS="$CCARGS -DNO_CLOSEFROM -DNO_DEV_URANDOM -DNO_FUTIMESAT";;
 196                 esac
 197                 # Work around broken str*casecmp(). Do it all here instead
 198                 # of having half the solution in the sys_defs.h file.
 199                 CCARGS="$CCARGS -Dstrcasecmp=fix_strcasecmp \
 200                     -Dstrncasecmp=fix_strncasecmp"
 201                 STRCASE="strcasecmp.o"
 202                 # Avoid common types of braindamage
 203                 case "$LD_LIBRARY_PATH" in
 204                 ?*) error "Don't set LD_LIBRARY_PATH";;
 205                 esac
 206                 case "${CC}" in
 207                 *" "*) ;;
 208                 *ucb*) error "Don't use /usr/ucb/cc or ucblib";;
 209                   cc*) case `which ${CC}` in
 210                 *ucb*) error "Don't use /usr/ucb/cc or ucblib";;
 211                   esac;;
 212                 esac
 213                 ;;
 214    ULTRIX.4*)   SYSTYPE=ULTRIX4
 215                 if [ -f /usr/local/lib/libdb.a ]; then
 216                     SYSLIBS="$SYSLIBS -ldb"
 217                     CCARGS="$CCARGS -DHAS_DB"
 218                     if [ -d /usr/local/include/db ]; then
 219                         CCARGS="$CCARGS -I/usr/local/include/db"
 220                     fi
 221                 fi
 222                 for l in syslog resolv; do
 223                     if [ -f /usr/local/lib/lib$l.a ]; then
 224                         SYSLIBS="$SYSLIBS -l$l"
 225                     fi
 226                 done
 227                 ;;
 228        AIX.*)   case "`uname -v`" in
 229                 5)      SYSTYPE=AIX5
 230                         case "$CC" in
 231                         cc|*/cc|xlc|*/xlc) CCARGS="$CCARGS -w -blibpath:/usr/lib:/lib:/usr/local/lib";;
 232                         esac
 233                         CCARGS="$CCARGS -D_ALL_SOURCE -DHAS_POSIX_REGEXP"
 234                         ;;
 235                 4)      SYSTYPE=AIX4
 236                         # How embarrassing...
 237                         case "$CC" in
 238                         cc|*/cc|xlc|*/xlc) OPT=; CCARGS="$CCARGS -w -blibpath:/usr/lib:/lib:/usr/local/lib";;
 239                         esac
 240                         CCARGS="$CCARGS -D_ALL_SOURCE -DHAS_POSIX_REGEXP"
 241                         ;;
 242                 3)      SYSTYPE=AIX3
 243                         # How embarrassing...
 244                         case "$CC" in
 245                         cc|*/cc|xlc|*/xlc) OPT=; CCARGS="$CCARGS -w";;
 246                         esac
 247                         CCARGS="$CCARGS -D_ALL_SOURCE"
 248                         ;;
 249                 *)      error "Unknown AIX version: `uname -v`.";;
 250                 esac;;
 251                 # Tested with RedHat 3.03 on 20020729.
 252     Linux.1*)   SYSTYPE=LINUX1
 253                 SYSLIBS="-ldb"
 254                 ;;
 255     Linux.2*)   SYSTYPE=LINUX2
 256                 # Postfix no longer needs DB 1.85 compatibility
 257                 if [ -f /usr/include/db.h ]
 258                 then
 259                     : we are all set
 260                 elif [ -f /usr/include/db/db.h ]
 261                 then
 262                     CCARGS="$CCARGS -I/usr/include/db"
 263                 else
 264                     # No, we're not going to try db1 db2 db3 etc.
 265                     # On a properly installed system, Postfix builds
 266                     # by including <db.h> and by linking with -ldb
 267                     echo "No <db.h> include file found." 1>&2
 268                     echo "Install the appropriate db*-devel package first." 1>&2
 269                     echo "See the RELEASE_NOTES file for more information." 1>&2
 270                     exit 1
 271                 fi
 272                 # GDBM locks the DBM .pag file after open. This breaks postmap.
 273                 # if [ -f /usr/include/gdbm-ndbm.h ]
 274                 # then
 275                 #     CCARGS="$CCARGS -DHAS_DBM -DPATH_NDBM_H='<gdbm-ndbm.h>'"
 276                 #     GDBM_LIBS=gdbm
 277                 # elif [ -f /usr/include/gdbm/ndbm.h ]
 278                 # then
 279                 #     CCARGS="$CCARGS -DHAS_DBM -DPATH_NDBM_H='<gdbm/ndbm.h>'"
 280                 #     GDBM_LIBS=gdbm
 281                 # fi
 282                 SYSLIBS="-ldb"
 283                 for name in nsl resolv $GDBM_LIBS
 284                 do
 285                     for lib in /usr/lib64 /lib64 /usr/lib /lib
 286                     do
 287                         test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
 288                             SYSLIBS="$SYSLIBS -l$name"
 289                             break
 290                         }
 291                     done
 292                 done
 293                 # Kernel 2.4 added IPv6
 294                 case "$RELEASE" in
 295                 2.[0-3].*) CCARGS="$CCARGS -DNO_IPV6";;
 296                 esac
 297                 # Kernel 2.6 added EPOLL
 298                 case "$RELEASE" in
 299                 2.[0-5].*) CCARGS="$CCARGS -DNO_EPOLL";;
 300                     # Workaround for retarded libc
 301                     2.6.*) trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
 302                            cat >makedefs.test.c <<'EOF'
 303 #include <sys/types.h>
 304 #include <sys/epoll.h>
 305 #include <errno.h>
 306 #include <stdio.h>
 307 #include <stdlib.h>
 308
 309 int     main(int argc, char **argv)
 310 {
 311     int     epoll_handle;
 312
 313     if ((epoll_handle = epoll_create(1)) < 0) {
 314         perror("epoll_create");
 315         exit(1);
 316     }
 317     exit(0);
 318 }
 319 EOF
 320                            ${CC-gcc} -o makedefs.test makedefs.test.c || exit 1
 321                            ./makedefs.test 2>/dev/null ||
 322                                 CCARGS="$CCARGS -DNO_EPOLL"
 323                            rm -f makedefs.test makedefs.test.[co];;
 324                 esac
 325                 ;;
 326      GNU.0*|GNU/kFreeBSD.[567]*)
 327                 SYSTYPE=GNU0
 328                 # Postfix no longer needs DB 1.85 compatibility
 329                 if [ -f /usr/include/db.h ]
 330                 then
 331                     : we are all set
 332                 elif [ -f /usr/include/db/db.h ]
 333                 then
 334                     CCARGS="$CCARGS -I/usr/include/db"
 335                 else
 336                     # No, we're not going to try db1 db2 db3 etc.
 337                     # On a properly installed system, Postfix builds
 338                     # by including <db.h> and by linking with -ldb
 339                     echo "No <db.h> include file found." 1>&2
 340                     echo "Install the appropriate db*-devel package first." 1>&2
 341                     echo "See the RELEASE_NOTES file for more information." 1>&2
 342                     exit 1
 343                 fi
 344                 SYSLIBS="-ldb"
 345                 for name in nsl resolv
 346                 do
 347                     for lib in /usr/lib64 /lib64 /usr/lib /lib
 348                     do
 349                         test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
 350                             SYSLIBS="$SYSLIBS -l$name"
 351                             break
 352                         }
 353                     done
 354                 done
 355                 case "`uname -s`" in
 356                 GNU)
 357                         # currently no IPv6 support on Hurd
 358                         CCARGS="$CCARGS -DNO_IPV6"
 359                         ;;
 360                 esac
 361                 ;;
 362      IRIX*.5.*) SYSTYPE=IRIX5
 363                 # Use the native compiler by default
 364                 : ${CC=cc} ${DEBUG="-g3"}
 365                 RANLIB=echo
 366                 ;;
 367      IRIX*.6.*) SYSTYPE=IRIX6
 368                 # Use the native compiler by default, and allow nested comments.
 369                 : ${CC="cc -woff 1009,1116,1412"}
 370                 RANLIB=echo
 371                 ;;
 372 HP-UX.A.09.*)   SYSTYPE=HPUX9
 373                 SYSLIBS=-ldbm
 374                 CCARGS="$CCARGS -DMISSING_USLEEP"
 375                 if [ -f /usr/lib/libdb.a ]; then
 376                     CCARGS="$CCARGS -DHAS_DB"
 377                     SYSLIBS="$SYSLIBS -ldb"
 378                 fi
 379                 ;;
 380 HP-UX.B.10.*)   SYSTYPE=HPUX10
 381                 CCARGS="$CCARGS `nm /usr/lib/libc.a 2>/dev/null |
 382                     (grep usleep >/dev/null || echo '-DMISSING_USLEEP')`"
 383                 if [ -f /usr/lib/libdb.a ]; then
 384                     CCARGS="$CCARGS -DHAS_DB"
 385                     SYSLIBS=-ldb
 386                 fi
 387                 ;;
 388 HP-UX.B.11.*)   SYSTYPE=HPUX11
 389                 SYSLIBS=-lnsl
 390                 if [ -f /usr/lib/libdb.a ]; then
 391                     CCARGS="$CCARGS -DHAS_DB"
 392                     SYSLIBS="$SYSLIBS -ldb"
 393                 fi
 394                 ;;
 395 ReliantUNIX-?.5.43) SYSTYPE=ReliantUnix543
 396                 RANLIB=echo
 397                 SYSLIBS="-lresolv -lsocket -lnsl"
 398                 ;;
 399     Darwin.*)   SYSTYPE=MACOSX
 400                 # Use the native compiler by default
 401                 : ${CC=cc}
 402                 # Darwin > 1.3 uses awk and flat_namespace
 403                 case $RELEASE in
 404                  1.[0-3]) AWK=gawk;;
 405                        *) AWK=awk
 406                           SYSLIBS=-flat_namespace;;
 407                 esac
 408                 # Darwin 7 adds IPv6 support, BIND_8_COMPAT, NO_NETINFO
 409                 case $RELEASE in
 410                  [1-6].*) CCARGS="$CCARGS -DNO_IPV6";;
 411                        *) CCARGS="$CCARGS -DBIND_8_COMPAT -DNO_NETINFO";;
 412                 esac
 413                 # kqueue and/or poll are broken up to and including MacOS X 10.5
 414                 CCARGS="$CCARGS -DNO_KQUEUE"
 415 #               # Darwin 8.11.1 has kqueue support, but let's play safe
 416 #               case $RELEASE in
 417 #                [1-8].*) CCARGS="$CCARGS -DNO_KQUEUE";;
 418 #                      *) trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
 419 #                         cat >makedefs.test.c <<'EOF'
 420 #/* Adapted from libevent. */
 421 #
 422 ##include <sys/types.h>
 423 ##include <sys/event.h>
 424 ##include <sys/time.h>
 425 ##include <string.h>
 426 ##include <stdlib.h>
 427 ##include <stdio.h>
 428 #
 429 ##ifndef EV_SET
 430 ##define EV_SET(kp, id, fi, fl, ffl, da, ud) do { \
 431 #       struct kevent *__kp = (kp); \
 432 #       __kp->ident = (id); \
 433 #       __kp->filter = (fi); \
 434 #       __kp->flags = (fl); \
 435 #       __kp->fflags = (ffl); \
 436 #       __kp->data = (da); \
 437 #       __kp->udata = (ud); \
 438 #    } while(0)
 439 ##endif
 440 #
 441 #int     main(int argc, char **argv)
 442 #{
 443 #    int     kq;
 444 #    struct kevent test_change;
 445 #    struct kevent test_result;
 446 #
 447 #    if ((kq = kqueue()) < 0) {
 448 #       perror("kqueue");
 449 #       exit(1);
 450 #    }
 451 ##define TEST_FD (-1)
 452 #
 453 #    EV_SET(&test_change, TEST_FD, EVFILT_READ, EV_ADD, 0, 0, 0);
 454 #    if (kevent(kq,
 455 #              &test_change, sizeof(test_change) / sizeof(struct kevent),
 456 #              &test_result, sizeof(test_result) / sizeof(struct kevent),
 457 #              (struct timespec *) 0) != 1 ||
 458 #       test_result.ident != TEST_FD ||
 459 #       test_result.flags != EV_ERROR) {
 460 #       fprintf(stderr, "Error: kevent reports errors incorrectly\n");
 461 #       exit(1);
 462 #    }
 463 #    exit(0);
 464 #}
 465 #EOF
 466 #                         $CC -o makedefs.test makedefs.test.c || exit 1
 467 #                         ./makedefs.test 2>/dev/null ||
 468 #                               CCARGS="$CCARGS -DNO_KQUEUE"
 469 #                         rm -f makedefs.test makedefs.test.[co];;
 470 #               esac
 471                 ;;
 472     dcosx.1*)   SYSTYPE=DCOSX1
 473                 RANLIB=echo
 474                 SYSLIBS="-lresolv -lsocket -lnsl -lc -lrpcsvc -L/usr/ucblib -lucb"
 475                 ;;
 476
 477          ".")   if [ -d /NextApps ]; then
 478                     SYSTYPE=`hostinfo | sed -n \
 479                         's/^.*NeXT Mach 3.*$/NEXTSTEP3/;/NEXTSTEP3/{p;q;}'`
 480                     if [ "$SYSTYPE" = "" ]; then
 481                         SYSTYPE=`hostinfo | sed -n \
 482                             's/^.*NeXT Mach 4.*$/OPENSTEP4/;/OPENSTEP4/{p;q;}'`
 483                     fi
 484                     : ${CC=cc}
 485                     RANLIB="sleep 5; ranlib"
 486                 else
 487                     error "Unable to determine your system type."
 488                 fi
 489                 ;;
 490            *)   error "Unknown system type: $SYSTEM $RELEASE";;
 491 esac
 492
 493 #
 494 # sigsetjmp()/siglongjmp() can be "better" than setjmp()/longjmp()
 495 # if used wisely (that is: almost never, just like signals).
 496 # Unfortunately some implementations have been buggy in the past.
 497 #
 498 case "$CCARGS" in
 499  *-DNO_SIGSETJMP*) ;;
 500                 *) trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
 501                    cat >makedefs.test.c <<'EOF'
 502 #include <setjmp.h>
 503 #include <stdlib.h>
 504 #include <stdio.h>
 505
 506 static int count = 0;
 507
 508 int     main(int argc, char **argv)
 509 {
 510     sigjmp_buf env;
 511     int     retval;
 512
 513     switch (retval = sigsetjmp(env, 1)) {
 514     case 0:
 515         siglongjmp(env, 12345);
 516     case 12345:
 517         break;
 518     default:
 519         fprintf(stderr, "Error: siglongjmp ignores second argument\n");
 520         exit(1);
 521     }
 522
 523     switch (retval = sigsetjmp(env, 1)) {
 524     case 0:
 525         if (count++ > 0) {
 526             fprintf(stderr, "Error: not overriding siglongjmp(env, 0)\n");
 527             exit(1);
 528         }
 529         siglongjmp(env, 0);
 530     case 1:
 531         break;
 532     default:
 533         fprintf(stderr, "Error: overriding siglongjmp(env, 0) with %d\n",
 534                 retval);
 535         exit(1);
 536     }
 537     exit(0);
 538 }
 539 EOF
 540                    ${CC-gcc} -o makedefs.test makedefs.test.c || exit 1
 541                    ./makedefs.test 2>/dev/null ||
 542                         CCARGS="$CCARGS -DNO_SIGSETJMP"
 543                    rm -f makedefs.test makedefs.test.[co]
 544 esac
 545
 546 #
 547 # OpenSSL has no configuration query utility, but we don't try to
 548 # guess. We assume includes in /usr/include/openssl and libraries in
 549 # /usr/lib, or in their /usr/local equivalents. If the OpenSSL files
 550 # are in a non-standard place, their locations need to be specified.
 551 #
 552 #case "$CCARGS" in
 553 # *-DUSE_TLS*)  ;;
 554 #  *-DNO_TLS*)  ;;
 555 #           *)  CCARGS="$CCARGS -DUSE_TLS"
 556 #               AUXLIBS="$AUXLIBS -lssl -lcrypto"
 557 #               ;;
 558 #esac
 559
 560 #
 561 # PCRE 3.x has a pcre-config utility so we don't have to guess.
 562 #
 563 case "$CCARGS" in
 564 *-DHAS_PCRE*)   ;;
 565  *-DNO_PCRE*)   ;;
 566            *)   pcre_cflags=`(pcre-config --cflags) 2>/dev/null` &&
 567                     pcre_libs=`(pcre-config --libs) 2>/dev/null` && {
 568                         CCARGS="$CCARGS -DHAS_PCRE $pcre_cflags"
 569                         AUXLIBS="$AUXLIBS $pcre_libs"
 570                 }
 571                 ;;
 572 esac
 573
 574 # Defaults that can be overruled (make makefiles CC=cc OPT=-O6 DEBUG=)
 575 # Disable optimizations by default when compiling for Purify. Disable
 576 # optimizations by default with gcc 2.8, until the compiler is known to
 577 # be OK. Those who dare can still overrule this (make makefiles OPT=-O).
 578
 579 case "$CC" in
 580  *purify*) : ${OPT=};;
 581 */gcc|gcc) case `$CC -v` in
 582            "gcc version 2.8"*) : ${OPT=};;
 583            esac;;
 584       *CC) error "Don't use CC. That's the C++ compiler";;
 585         *) : ${OPT='-O'};;
 586 esac
 587 #
 588 # "gcc -W" 3.4.2 no longer reports functions that fail to return a
 589 # result.  Use "gcc -Wall -Wno-comment" instead. We'll figure out
 590 # later if the other -Wmumble options are really redundant. Having
 591 # een burned once by a compiler that lies about what warnings it
 592 # produces, not taking that chance again.
 593
 594 : ${CC='gcc $(WARN)'} ${OPT='-O'} ${DEBUG='-g'} ${AWK=awk} \
 595 ${WARN='-Wall -Wno-comment -Wformat -Wimplicit -Wmissing-prototypes \
 596         -Wparentheses -Wstrict-prototypes -Wswitch -Wuninitialized \
 597         -Wunused -Wno-missing-braces'}
 598
 599 export SYSTYPE AR ARFL RANLIB SYSLIBS CC OPT DEBUG AWK OPTS
 600
 601 # Snapshot only.
 602 #CCARGS="$CCARGS -DSNAPSHOT"
 603
 604 # Non-production: needs thorough testing, or major changes are still
 605 # needed before the code stabilizes.
 606 #CCARGS="$CCARGS -DNONPROD"
 607
 608 sed 's/  / /g' <<EOF
 609 SYSTYPE = $SYSTYPE
 610 AR      = $AR
 611 ARFL    = $ARFL
 612 RANLIB  = $RANLIB
 613 SYSLIBS = $AUXLIBS $SYSLIBS
 614 CC      = $CC $CCARGS
 615 OPT     = $OPT
 616 DEBUG   = $DEBUG
 617 AWK     = $AWK
 618 STRCASE = $STRCASE
 619 EXPORT  = AUXLIBS='$AUXLIBS' CCARGS='$CCARGS' OPT='$OPT' DEBUG='$DEBUG'
 620 WARN    = $WARN
 621 EOF