makedefs revision 1.2 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 FreeBSD.8*) SYSTYPE=FREEBSD8
148 ;;
149 OpenBSD.2*) SYSTYPE=OPENBSD2
150 ;;
151 OpenBSD.3*) SYSTYPE=OPENBSD3
152 ;;
153 OpenBSD.4*) SYSTYPE=OPENBSD4
154 ;;
155 ekkoBSD.1*) SYSTYPE=EKKOBSD1
156 ;;
157 NetBSD.1*) SYSTYPE=NETBSD1
158 ;;
159 NetBSD.2*) SYSTYPE=NETBSD2
160 ;;
161 NetBSD.3*) SYSTYPE=NETBSD3
162 ;;
163 NetBSD.4*) SYSTYPE=NETBSD4
164 ;;
165 NetBSD.5*) SYSTYPE=NETBSD5
166 ;;
167 BSD/OS.2*) SYSTYPE=BSDI2
168 ;;
169 BSD/OS.3*) SYSTYPE=BSDI3
170 ;;
171 BSD/OS.4*) SYSTYPE=BSDI4
172 ;;
173 OSF1.V[3-5].*) SYSTYPE=OSF1
174 # Use the native compiler by default
175 : ${CC=cc}
176 : ${DEBUG="-g3"}
177 case $RELEASE in
178 V[0-4].*) CCARGS="$CCARGS -DNO_IPV6";;
179 esac
180 ;;
181 SunOS.4*) SYSTYPE=SUNOS4
182 SYSLIBS=-lresolv
183 ;;
184 SunOS.5*) SYSTYPE=SUNOS5
185 RANLIB=echo
186 SYSLIBS="-lresolv -lsocket -lnsl"
187 # Stock awk breaks with >10 files.
188 test -x /usr/xpg4/bin/awk && AWK=/usr/xpg4/bin/awk
189 # Solaris 2.5 added usleep() and POSIX regular expressions
190 case $RELEASE in
191 5.[0-4]) CCARGS="$CCARGS -DMISSING_USLEEP -DNO_POSIX_REGEXP";;
192 esac
193 # Solaris 8 added IPv6 and /dev/poll
194 case $RELEASE in
195 5.[0-7]|5.[0-7].*) CCARGS="$CCARGS -DNO_IPV6 -DNO_DEVPOLL";;
196 esac
197 # Solaris 9 added closefrom(), futimesat() and /dev/*random
198 case $RELEASE in
199 5.[0-8]|5.[0-8].*) CCARGS="$CCARGS -DNO_CLOSEFROM -DNO_DEV_URANDOM -DNO_FUTIMESAT";;
200 esac
201 # Work around broken str*casecmp(). Do it all here instead
202 # of having half the solution in the sys_defs.h file.
203 CCARGS="$CCARGS -Dstrcasecmp=fix_strcasecmp \
204 -Dstrncasecmp=fix_strncasecmp"
205 STRCASE="strcasecmp.o"
206 # Avoid common types of braindamage
207 case "$LD_LIBRARY_PATH" in
208 ?*) error "Don't set LD_LIBRARY_PATH";;
209 esac
210 case "${CC}" in
211 *" "*) ;;
212 *ucb*) error "Don't use /usr/ucb/cc or ucblib";;
213 cc*) case `which ${CC}` in
214 *ucb*) error "Don't use /usr/ucb/cc or ucblib";;
215 esac;;
216 esac
217 ;;
218 ULTRIX.4*) SYSTYPE=ULTRIX4
219 if [ -f /usr/local/lib/libdb.a ]; then
220 SYSLIBS="$SYSLIBS -ldb"
221 CCARGS="$CCARGS -DHAS_DB"
222 if [ -d /usr/local/include/db ]; then
223 CCARGS="$CCARGS -I/usr/local/include/db"
224 fi
225 fi
226 for l in syslog resolv; do
227 if [ -f /usr/local/lib/lib$l.a ]; then
228 SYSLIBS="$SYSLIBS -l$l"
229 fi
230 done
231 ;;
232 AIX.*) case "`uname -v`" in
233 5) SYSTYPE=AIX5
234 case "$CC" in
235 cc|*/cc|xlc|*/xlc) CCARGS="$CCARGS -w -blibpath:/usr/lib:/lib:/usr/local/lib";;
236 esac
237 CCARGS="$CCARGS -D_ALL_SOURCE -DHAS_POSIX_REGEXP"
238 ;;
239 4) SYSTYPE=AIX4
240 # How embarrassing...
241 case "$CC" in
242 cc|*/cc|xlc|*/xlc) OPT=; CCARGS="$CCARGS -w -blibpath:/usr/lib:/lib:/usr/local/lib";;
243 esac
244 CCARGS="$CCARGS -D_ALL_SOURCE -DHAS_POSIX_REGEXP"
245 ;;
246 3) SYSTYPE=AIX3
247 # How embarrassing...
248 case "$CC" in
249 cc|*/cc|xlc|*/xlc) OPT=; CCARGS="$CCARGS -w";;
250 esac
251 CCARGS="$CCARGS -D_ALL_SOURCE"
252 ;;
253 *) error "Unknown AIX version: `uname -v`.";;
254 esac;;
255 # Tested with RedHat 3.03 on 20020729.
256 Linux.1*) SYSTYPE=LINUX1
257 SYSLIBS="-ldb"
258 ;;
259 Linux.2*) SYSTYPE=LINUX2
260 # Postfix no longer needs DB 1.85 compatibility
261 if [ -f /usr/include/db.h ]
262 then
263 : we are all set
264 elif [ -f /usr/include/db/db.h ]
265 then
266 CCARGS="$CCARGS -I/usr/include/db"
267 else
268 # No, we're not going to try db1 db2 db3 etc.
269 # On a properly installed system, Postfix builds
270 # by including <db.h> and by linking with -ldb
271 echo "No <db.h> include file found." 1>&2
272 echo "Install the appropriate db*-devel package first." 1>&2
273 echo "See the RELEASE_NOTES file for more information." 1>&2
274 exit 1
275 fi
276 # GDBM locks the DBM .pag file after open. This breaks postmap.
277 # if [ -f /usr/include/gdbm-ndbm.h ]
278 # then
279 # CCARGS="$CCARGS -DHAS_DBM -DPATH_NDBM_H='<gdbm-ndbm.h>'"
280 # GDBM_LIBS=gdbm
281 # elif [ -f /usr/include/gdbm/ndbm.h ]
282 # then
283 # CCARGS="$CCARGS -DHAS_DBM -DPATH_NDBM_H='<gdbm/ndbm.h>'"
284 # GDBM_LIBS=gdbm
285 # fi
286 SYSLIBS="-ldb"
287 for name in nsl resolv $GDBM_LIBS
288 do
289 for lib in /usr/lib64 /lib64 /usr/lib /lib
290 do
291 test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
292 SYSLIBS="$SYSLIBS -l$name"
293 break
294 }
295 done
296 done
297 # Kernel 2.4 added IPv6
298 case "$RELEASE" in
299 2.[0-3].*) CCARGS="$CCARGS -DNO_IPV6";;
300 esac
301 # Kernel 2.6 added EPOLL
302 case "$RELEASE" in
303 2.[0-5].*) CCARGS="$CCARGS -DNO_EPOLL";;
304 # Workaround for retarded libc
305 2.6.*)
306 if [ `expr "X$CCARGS" : "X.*-DNO_EPOLL"` -gt 0 ]
307 then
308 :
309 elif [ ! -e /usr/include/sys/epoll.h ]
310 then
311 echo CCARGS="$CCARGS -DNO_EPOLL"
312 else
313 trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
314 cat >makedefs.test.c <<'EOF'
315 #include <sys/types.h>
316 #include <sys/epoll.h>
317 #include <errno.h>
318 #include <stdio.h>
319 #include <stdlib.h>
320
321 int main(int argc, char **argv)
322 {
323 int epoll_handle;
324
325 if ((epoll_handle = epoll_create(1)) < 0) {
326 perror("epoll_create");
327 exit(1);
328 }
329 exit(0);
330 }
331 EOF
332 ${CC-gcc} -o makedefs.test makedefs.test.c || exit 1
333 ./makedefs.test 2>/dev/null ||
334 CCARGS="$CCARGS -DNO_EPOLL"
335 rm -f makedefs.test makedefs.test.[co]
336 fi;;
337 esac
338 ;;
339 GNU.0*|GNU/kFreeBSD.[567]*)
340 SYSTYPE=GNU0
341 # Postfix no longer needs DB 1.85 compatibility
342 if [ -f /usr/include/db.h ]
343 then
344 : we are all set
345 elif [ -f /usr/include/db/db.h ]
346 then
347 CCARGS="$CCARGS -I/usr/include/db"
348 else
349 # No, we're not going to try db1 db2 db3 etc.
350 # On a properly installed system, Postfix builds
351 # by including <db.h> and by linking with -ldb
352 echo "No <db.h> include file found." 1>&2
353 echo "Install the appropriate db*-devel package first." 1>&2
354 echo "See the RELEASE_NOTES file for more information." 1>&2
355 exit 1
356 fi
357 SYSLIBS="-ldb"
358 for name in nsl resolv
359 do
360 for lib in /usr/lib64 /lib64 /usr/lib /lib
361 do
362 test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
363 SYSLIBS="$SYSLIBS -l$name"
364 break
365 }
366 done
367 done
368 case "`uname -s`" in
369 GNU)
370 # currently no IPv6 support on Hurd
371 CCARGS="$CCARGS -DNO_IPV6"
372 ;;
373 esac
374 ;;
375 IRIX*.5.*) SYSTYPE=IRIX5
376 # Use the native compiler by default
377 : ${CC=cc} ${DEBUG="-g3"}
378 RANLIB=echo
379 ;;
380 IRIX*.6.*) SYSTYPE=IRIX6
381 # Use the native compiler by default, and allow nested comments.
382 : ${CC="cc -woff 1009,1116,1412"}
383 RANLIB=echo
384 ;;
385 HP-UX.A.09.*) SYSTYPE=HPUX9
386 SYSLIBS=-ldbm
387 CCARGS="$CCARGS -DMISSING_USLEEP"
388 if [ -f /usr/lib/libdb.a ]; then
389 CCARGS="$CCARGS -DHAS_DB"
390 SYSLIBS="$SYSLIBS -ldb"
391 fi
392 ;;
393 HP-UX.B.10.*) SYSTYPE=HPUX10
394 CCARGS="$CCARGS `nm /usr/lib/libc.a 2>/dev/null |
395 (grep usleep >/dev/null || echo '-DMISSING_USLEEP')`"
396 if [ -f /usr/lib/libdb.a ]; then
397 CCARGS="$CCARGS -DHAS_DB"
398 SYSLIBS=-ldb
399 fi
400 ;;
401 HP-UX.B.11.*) SYSTYPE=HPUX11
402 SYSLIBS=-lnsl
403 if [ -f /usr/lib/libdb.a ]; then
404 CCARGS="$CCARGS -DHAS_DB"
405 SYSLIBS="$SYSLIBS -ldb"
406 fi
407 ;;
408 ReliantUNIX-?.5.43) SYSTYPE=ReliantUnix543
409 RANLIB=echo
410 SYSLIBS="-lresolv -lsocket -lnsl"
411 ;;
412 Darwin.*) SYSTYPE=MACOSX
413 # Use the native compiler by default
414 : ${CC=cc}
415 # Darwin > 1.3 uses awk and flat_namespace
416 case $RELEASE in
417 1.[0-3]) AWK=gawk;;
418 *) AWK=awk
419 SYSLIBS=-flat_namespace;;
420 esac
421 # Darwin 7 adds IPv6 support, BIND_8_COMPAT, NO_NETINFO
422 case $RELEASE in
423 [1-6].*) CCARGS="$CCARGS -DNO_IPV6";;
424 *) CCARGS="$CCARGS -DBIND_8_COMPAT -DNO_NETINFO";;
425 esac
426 # Darwin 10.3.0 no longer has <nameser8_compat.h>.
427 case $RELEASE in
428 ?.*) CCARGS="$CCARGS -DRESOLVE_H_NEEDS_NAMESER8_COMPAT_H";;
429 *) CCARGS="$CCARGS -DRESOLVE_H_NEEDS_ARPA_NAMESER_COMPAT_H";;
430 esac
431 # kqueue and/or poll are broken up to and including MacOS X 10.5
432 CCARGS="$CCARGS -DNO_KQUEUE"
433 # # Darwin 8.11.1 has kqueue support, but let's play safe
434 # case $RELEASE in
435 # [1-8].*) CCARGS="$CCARGS -DNO_KQUEUE";;
436 # *) trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
437 # cat >makedefs.test.c <<'EOF'
438 #/* Adapted from libevent. */
439 #
440 ##include <sys/types.h>
441 ##include <sys/event.h>
442 ##include <sys/time.h>
443 ##include <string.h>
444 ##include <stdlib.h>
445 ##include <stdio.h>
446 #
447 ##ifndef EV_SET
448 ##define EV_SET(kp, id, fi, fl, ffl, da, ud) do { \
449 # struct kevent *__kp = (kp); \
450 # __kp->ident = (id); \
451 # __kp->filter = (fi); \
452 # __kp->flags = (fl); \
453 # __kp->fflags = (ffl); \
454 # __kp->data = (da); \
455 # __kp->udata = (ud); \
456 # } while(0)
457 ##endif
458 #
459 #int main(int argc, char **argv)
460 #{
461 # int kq;
462 # struct kevent test_change;
463 # struct kevent test_result;
464 #
465 # if ((kq = kqueue()) < 0) {
466 # perror("kqueue");
467 # exit(1);
468 # }
469 ##define TEST_FD (-1)
470 #
471 # EV_SET(&test_change, TEST_FD, EVFILT_READ, EV_ADD, 0, 0, 0);
472 # if (kevent(kq,
473 # &test_change, sizeof(test_change) / sizeof(struct kevent),
474 # &test_result, sizeof(test_result) / sizeof(struct kevent),
475 # (struct timespec *) 0) != 1 ||
476 # test_result.ident != TEST_FD ||
477 # test_result.flags != EV_ERROR) {
478 # fprintf(stderr, "Error: kevent reports errors incorrectly\n");
479 # exit(1);
480 # }
481 # exit(0);
482 #}
483 #EOF
484 # $CC -o makedefs.test makedefs.test.c || exit 1
485 # ./makedefs.test 2>/dev/null ||
486 # CCARGS="$CCARGS -DNO_KQUEUE"
487 # rm -f makedefs.test makedefs.test.[co];;
488 # esac
489 ;;
490 dcosx.1*) SYSTYPE=DCOSX1
491 RANLIB=echo
492 SYSLIBS="-lresolv -lsocket -lnsl -lc -lrpcsvc -L/usr/ucblib -lucb"
493 ;;
494
495 ".") if [ -d /NextApps ]; then
496 SYSTYPE=`hostinfo | sed -n \
497 's/^.*NeXT Mach 3.*$/NEXTSTEP3/;/NEXTSTEP3/{p;q;}'`
498 if [ "$SYSTYPE" = "" ]; then
499 SYSTYPE=`hostinfo | sed -n \
500 's/^.*NeXT Mach 4.*$/OPENSTEP4/;/OPENSTEP4/{p;q;}'`
501 fi
502 : ${CC=cc}
503 RANLIB="sleep 5; ranlib"
504 else
505 error "Unable to determine your system type."
506 fi
507 ;;
508 *) error "Unknown system type: $SYSTEM $RELEASE";;
509 esac
510
511 #
512 # sigsetjmp()/siglongjmp() can be "better" than setjmp()/longjmp()
513 # if used wisely (that is: almost never, just like signals).
514 # Unfortunately some implementations have been buggy in the past.
515 #
516 case "$CCARGS" in
517 *-DNO_SIGSETJMP*) ;;
518 *) trap 'rm -f makedefs.test makedefs.test.[co]' 1 2 3 15
519 cat >makedefs.test.c <<'EOF'
520 #include <setjmp.h>
521 #include <stdlib.h>
522 #include <stdio.h>
523
524 static int count = 0;
525
526 int main(int argc, char **argv)
527 {
528 sigjmp_buf env;
529 int retval;
530
531 switch (retval = sigsetjmp(env, 1)) {
532 case 0:
533 siglongjmp(env, 12345);
534 case 12345:
535 break;
536 default:
537 fprintf(stderr, "Error: siglongjmp ignores second argument\n");
538 exit(1);
539 }
540
541 switch (retval = sigsetjmp(env, 1)) {
542 case 0:
543 if (count++ > 0) {
544 fprintf(stderr, "Error: not overriding siglongjmp(env, 0)\n");
545 exit(1);
546 }
547 siglongjmp(env, 0);
548 case 1:
549 break;
550 default:
551 fprintf(stderr, "Error: overriding siglongjmp(env, 0) with %d\n",
552 retval);
553 exit(1);
554 }
555 exit(0);
556 }
557 EOF
558 ${CC-gcc} -o makedefs.test makedefs.test.c || exit 1
559 ./makedefs.test 2>/dev/null ||
560 CCARGS="$CCARGS -DNO_SIGSETJMP"
561 rm -f makedefs.test makedefs.test.[co]
562 esac
563
564 #
565 # OpenSSL has no configuration query utility, but we don't try to
566 # guess. We assume includes in /usr/include/openssl and libraries in
567 # /usr/lib, or in their /usr/local equivalents. If the OpenSSL files
568 # are in a non-standard place, their locations need to be specified.
569 #
570 #case "$CCARGS" in
571 # *-DUSE_TLS*) ;;
572 # *-DNO_TLS*) ;;
573 # *) CCARGS="$CCARGS -DUSE_TLS"
574 # AUXLIBS="$AUXLIBS -lssl -lcrypto"
575 # ;;
576 #esac
577
578 #
579 # PCRE 3.x has a pcre-config utility so we don't have to guess.
580 #
581 case "$CCARGS" in
582 *-DHAS_PCRE*) ;;
583 *-DNO_PCRE*) ;;
584 *) pcre_cflags=`(pcre-config --cflags) 2>/dev/null` &&
585 pcre_libs=`(pcre-config --libs) 2>/dev/null` && {
586 CCARGS="$CCARGS -DHAS_PCRE $pcre_cflags"
587 AUXLIBS="$AUXLIBS $pcre_libs"
588 }
589 ;;
590 esac
591
592 # Defaults that can be overruled (make makefiles CC=cc OPT=-O6 DEBUG=)
593 # Disable optimizations by default when compiling for Purify. Disable
594 # optimizations by default with gcc 2.8, until the compiler is known to
595 # be OK. Those who dare can still overrule this (make makefiles OPT=-O).
596
597 case "$CC" in
598 *purify*) : ${OPT=};;
599 */gcc|gcc) case `$CC -v` in
600 "gcc version 2.8"*) : ${OPT=};;
601 esac;;
602 *CC) error "Don't use CC. That's the C++ compiler";;
603 *) : ${OPT='-O'};;
604 esac
605 #
606 # "gcc -W" 3.4.2 no longer reports functions that fail to return a
607 # result. Use "gcc -Wall -Wno-comment" instead. We'll figure out
608 # later if the other -Wmumble options are really redundant. Having
609 # een burned once by a compiler that lies about what warnings it
610 # produces, not taking that chance again.
611
612 : ${CC='gcc $(WARN)'} ${OPT='-O'} ${DEBUG='-g'} ${AWK=awk} \
613 ${WARN='-Wall -Wno-comment -Wformat -Wimplicit -Wmissing-prototypes \
614 -Wparentheses -Wstrict-prototypes -Wswitch -Wuninitialized \
615 -Wunused -Wno-missing-braces'}
616
617 export SYSTYPE AR ARFL RANLIB SYSLIBS CC OPT DEBUG AWK OPTS
618
619 # Snapshot only.
620 #CCARGS="$CCARGS -DSNAPSHOT"
621
622 # Non-production: needs thorough testing, or major changes are still
623 # needed before the code stabilizes.
624 #CCARGS="$CCARGS -DNONPROD"
625
626 sed 's/ / /g' <<EOF
627 SYSTYPE = $SYSTYPE
628 AR = $AR
629 ARFL = $ARFL
630 RANLIB = $RANLIB
631 SYSLIBS = $AUXLIBS $SYSLIBS
632 CC = $CC $CCARGS
633 OPT = $OPT
634 DEBUG = $DEBUG
635 AWK = $AWK
636 STRCASE = $STRCASE
637 EXPORT = AUXLIBS='$AUXLIBS' CCARGS='$CCARGS' OPT='$OPT' DEBUG='$DEBUG'
638 WARN = $WARN
639 EOF
640