xref: /aosp_15_r20/external/cronet/third_party/apache-portable-runtime/src/build/apr_hints.m4 (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b) 
1dnl -------------------------------------------------------- -*- autoconf -*-
2dnl Licensed to the Apache Software Foundation (ASF) under one or more
3dnl contributor license agreements.  See the NOTICE file distributed with
4dnl this work for additional information regarding copyright ownership.
5dnl The ASF licenses this file to You under the Apache License, Version 2.0
6dnl (the "License"); you may not use this file except in compliance with
7dnl the License.  You may obtain a copy of the License at
8dnl
9dnl     http://www.apache.org/licenses/LICENSE-2.0
10dnl
11dnl Unless required by applicable law or agreed to in writing, software
12dnl distributed under the License is distributed on an "AS IS" BASIS,
13dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14dnl See the License for the specific language governing permissions and
15dnl limitations under the License.
16
17dnl -----------------------------------------------------------------
18dnl apr_hints.m4: APR's autoconf macros for platform-specific hints
19dnl
20dnl  We preload various configure settings depending
21dnl  on previously obtained platform knowledge.
22dnl  We allow all settings to be overridden from
23dnl  the command-line.
24dnl
25dnl  We maintain the "format" that we've used
26dnl  under 1.3.x, so we don't exactly follow
27dnl  what is "recommended" by autoconf.
28
29dnl
30dnl APR_PRELOAD
31dnl
32dnl  Preload various ENV/makefile params such as CC, CFLAGS, etc
33dnl  based on outside knowledge
34dnl
35dnl  Generally, we force the setting of CC, and add flags
36dnl  to CFLAGS, CPPFLAGS, LIBS and LDFLAGS.
37dnl
38AC_DEFUN(APR_PRELOAD, [
39if test "x$apr_preload_done" != "xyes" ; then
40
41  apr_preload_done="yes"
42
43  echo "Applying APR hints file rules for $host"
44
45  case "$host" in
46    *mint)
47	APR_ADDTO(CPPFLAGS, [-DMINT -D_GNU_SOURCE])
48	;;
49    *MPE/iX*)
50	APR_ADDTO(CPPFLAGS, [-DMPE -D_POSIX_SOURCE -D_SOCKET_SOURCE])
51	APR_ADDTO(LIBS, [-lsvipc -lcurses])
52	APR_ADDTO(LDFLAGS, [-Xlinker \"-WL,cap=ia,ba,ph;nmstack=1024000\"])
53	;;
54    *-apple-aux3*)
55	APR_ADDTO(CPPFLAGS, [-DAUX3 -D_POSIX_SOURCE])
56	APR_ADDTO(LIBS, [-lposix -lbsd])
57	APR_ADDTO(LDFLAGS, [-s])
58	APR_SETVAR(SHELL, [/bin/ksh])
59	;;
60    *-ibm-aix*)
61	APR_ADDTO(CPPFLAGS, [-U__STR__ -D_THREAD_SAFE])
62        dnl _USR_IRS gets us the hstrerror() proto in netdb.h
63        case $host in
64            *-ibm-aix4.3)
65	        APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
66	        ;;
67            *-ibm-aix5*)
68	        APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
69	        ;;
70            *-ibm-aix4.3.*)
71                APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
72                ;;
73        esac
74        dnl If using xlc, remember it, and give it the right options.
75        if $CC 2>&1 | grep 'xlc' > /dev/null; then
76          APR_SETIFNULL(AIX_XLC, [yes])
77          APR_ADDTO(CFLAGS, [-qHALT=E])
78        fi
79	APR_SETIFNULL(apr_sysvsem_is_global, [yes])
80	APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
81        case $host in
82            *-ibm-aix3* | *-ibm-aix4.1.*)
83                ;;
84            *)
85                APR_ADDTO(LDFLAGS, [-Wl,-brtl])
86                ;;
87	esac
88        ;;
89    *-apollo-*)
90	APR_ADDTO(CPPFLAGS, [-DAPOLLO])
91	;;
92    *-dg-dgux*)
93	APR_ADDTO(CPPFLAGS, [-DDGUX])
94	;;
95    *-os2*)
96	APR_SETVAR(SHELL, [sh])
97	APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
98	APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
99	APR_SETIFNULL(apr_getservbyname_is_thread_safe, [yes])
100	;;
101    *-hi-hiux)
102	APR_ADDTO(CPPFLAGS, [-DHIUX])
103	;;
104    *-hp-hpux11.*)
105	APR_ADDTO(CPPFLAGS, [-DHPUX11 -D_REENTRANT -D_HPUX_SOURCE])
106	;;
107    *-hp-hpux10.*)
108 	case $host in
109 	  *-hp-hpux10.01)
110dnl	       # We know this is a problem in 10.01.
111dnl	       # Not a problem in 10.20.  Otherwise, who knows?
112	       APR_ADDTO(CPPFLAGS, [-DSELECT_NEEDS_CAST])
113	       ;;
114 	esac
115	APR_ADDTO(CPPFLAGS, [-D_REENTRANT])
116	;;
117    *-hp-hpux*)
118	APR_ADDTO(CPPFLAGS, [-DHPUX -D_REENTRANT])
119	;;
120    *-linux*)
121	APR_ADDTO(CPPFLAGS, [-DLINUX -D_REENTRANT -D_GNU_SOURCE])
122	;;
123    *-lynx-lynxos)
124	APR_ADDTO(CPPFLAGS, [-D__NO_INCLUDE_WARN__ -DLYNXOS])
125	APR_ADDTO(LIBS, [-lbsd])
126	;;
127    *486-*-bsdi*)
128	APR_ADDTO(CFLAGS, [-m486])
129	;;
130    *-*-bsdi*)
131        case $host in
132            *bsdi4.1)
133                APR_ADDTO(CFLAGS, [-D_REENTRANT])
134                ;;
135        esac
136        ;;
137    *-openbsd*)
138	APR_ADDTO(CPPFLAGS, [-D_POSIX_THREADS])
139        # binding to an ephemeral port fails on OpenBSD so override
140        # the test for O_NONBLOCK inheritance across accept().
141        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
142	;;
143    *-netbsd*)
144	APR_ADDTO(CPPFLAGS, [-DNETBSD])
145        # fcntl() lies about O_NONBLOCK on an accept()ed socket (PR kern/26950)
146        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
147	;;
148    *-freebsd*)
149        APR_SETIFNULL(apr_lock_method, [USE_FLOCK_SERIALIZE])
150        if test -x /sbin/sysctl; then
151            os_version=`/sbin/sysctl -n kern.osreldate`
152        else
153            os_version=000000
154        fi
155        # 502102 is when libc_r switched to libpthread (aka libkse).
156        if test $os_version -ge "502102"; then
157          apr_cv_pthreads_cflags="none"
158          apr_cv_pthreads_lib="-lpthread"
159        else
160          APR_ADDTO(CPPFLAGS, [-D_THREAD_SAFE -D_REENTRANT])
161          APR_SETIFNULL(enable_threads, [no])
162        fi
163        # prevent use of KQueue before FreeBSD 4.8
164        if test $os_version -lt "480000"; then
165          APR_SETIFNULL(ac_cv_func_kqueue, no)
166        fi
167	;;
168    *-k*bsd*-gnu)
169        APR_ADDTO(CPPFLAGS, [-D_REENTRANT -D_GNU_SOURCE])
170        ;;
171    *-gnu*|*-GNU*)
172        APR_ADDTO(CPPFLAGS, [-D_REENTRANT -D_GNU_SOURCE -DHURD])
173        ;;
174    *-next-nextstep*)
175	APR_SETIFNULL(CFLAGS, [-O])
176	APR_ADDTO(CPPFLAGS, [-DNEXT])
177	;;
178    *-next-openstep*)
179	APR_SETIFNULL(CFLAGS, [-O])
180	APR_ADDTO(CPPFLAGS, [-DNEXT])
181	;;
182    *-apple-rhapsody*)
183	APR_ADDTO(CPPFLAGS, [-DRHAPSODY])
184	;;
185    *-apple-darwin*)
186        APR_ADDTO(CPPFLAGS, [-DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK])
187        APR_SETIFNULL(apr_posixsem_is_global, [yes])
188        case $host in
189            *-apple-darwin[[1-9]].*)
190                # APR's use of kqueue has triggered kernel panics for some
191                # 10.5.x (Darwin 9.x) users when running the entire test suite.
192                # In 10.4.x, use of kqueue would cause the socket tests to hang.
193                # 10.6+ (Darwin 10.x is supposed to fix the KQueue issues
194                APR_SETIFNULL(ac_cv_func_kqueue, [no])
195                APR_SETIFNULL(ac_cv_func_poll, [no]) # See issue 34332
196            ;;
197            *-apple-darwin1?.*)
198                APR_ADDTO(CPPFLAGS, [-DDARWIN_10])
199            ;;
200        esac
201	;;
202    *-dec-osf*)
203	APR_ADDTO(CPPFLAGS, [-DOSF1])
204        # process-shared mutexes don't seem to work in Tru64 5.0
205        APR_SETIFNULL(apr_cv_process_shared_works, [no])
206	;;
207    *-nto-qnx*)
208	;;
209    *-qnx)
210	APR_ADDTO(CPPFLAGS, [-DQNX])
211	APR_ADDTO(LIBS, [-N128k -lunix])
212	;;
213    *-qnx32)
214	APR_ADDTO(CPPFLAGS, [-DQNX])
215	APR_ADDTO(CFLAGS, [-mf -3])
216	APR_ADDTO(LIBS, [-N128k -lunix])
217	;;
218    *-isc4*)
219	APR_ADDTO(CPPFLAGS, [-posix -DISC])
220	APR_ADDTO(LDFLAGS, [-posix])
221	APR_ADDTO(LIBS, [-linet])
222	;;
223    *-sco3.2v[[234]]*)
224	APR_ADDTO(CPPFLAGS, [-DSCO -D_REENTRANT])
225	if test "$GCC" = "no"; then
226	    APR_ADDTO(CFLAGS, [-Oacgiltz])
227	fi
228	APR_ADDTO(LIBS, [-lPW -lmalloc])
229	;;
230    *-sco3.2v5*)
231	APR_ADDTO(CPPFLAGS, [-DSCO5 -D_REENTRANT])
232	;;
233    *-sco_sv*|*-SCO_SV*)
234	APR_ADDTO(CPPFLAGS, [-DSCO -D_REENTRANT])
235	APR_ADDTO(LIBS, [-lPW -lmalloc])
236	;;
237    *-solaris2*)
238    	PLATOSVERS=`echo $host | sed 's/^.*solaris2.//'`
239	APR_ADDTO(CPPFLAGS, [-DSOLARIS2=$PLATOSVERS -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT])
240        if test $PLATOSVERS -ge 10; then
241            APR_SETIFNULL(apr_lock_method, [USE_PROC_PTHREAD_SERIALIZE])
242        else
243            APR_SETIFNULL(apr_lock_method, [USE_FCNTL_SERIALIZE])
244        fi
245        # readdir64_r error handling seems broken on Solaris (at least
246        # up till 2.8) -- it will return -1 at end-of-directory.
247        APR_SETIFNULL(ac_cv_func_readdir64_r, [no])
248	;;
249    *-sunos4*)
250	APR_ADDTO(CPPFLAGS, [-DSUNOS4])
251	;;
252    *-unixware1)
253	APR_ADDTO(CPPFLAGS, [-DUW=100])
254	;;
255    *-unixware2)
256	APR_ADDTO(CPPFLAGS, [-DUW=200])
257	APR_ADDTO(LIBS, [-lgen])
258	;;
259    *-unixware211)
260	APR_ADDTO(CPPFLAGS, [-DUW=211])
261	APR_ADDTO(LIBS, [-lgen])
262	;;
263    *-unixware212)
264	APR_ADDTO(CPPFLAGS, [-DUW=212])
265	APR_ADDTO(LIBS, [-lgen])
266	;;
267    *-unixware7)
268	APR_ADDTO(CPPFLAGS, [-DUW=700])
269	APR_ADDTO(LIBS, [-lgen])
270	;;
271    maxion-*-sysv4*)
272	APR_ADDTO(CPPFLAGS, [-DSVR4])
273	APR_ADDTO(LIBS, [-lc -lgen])
274	;;
275    *-*-powermax*)
276	APR_ADDTO(CPPFLAGS, [-DSVR4])
277	APR_ADDTO(LIBS, [-lgen])
278	;;
279    TPF)
280       APR_ADDTO(CPPFLAGS, [-DTPF -D_POSIX_SOURCE])
281       ;;
282    bs2000*-siemens-sysv*)
283	APR_SETIFNULL(CFLAGS, [-O])
284	APR_ADDTO(CPPFLAGS, [-DSVR4 -D_XPG_IV -D_KMEMUSER])
285	APR_ADDTO(LIBS, [-lsocket])
286	APR_SETIFNULL(enable_threads, [no])
287	;;
288    *-siemens-sysv4*)
289	APR_ADDTO(CPPFLAGS, [-DSVR4 -D_XPG_IV -DHAS_DLFCN -DUSE_MMAP_FILES -DUSE_SYSVSEM_SERIALIZED_ACCEPT])
290	APR_ADDTO(LIBS, [-lc])
291	;;
292    pyramid-pyramid-svr4)
293	APR_ADDTO(CPPFLAGS, [-DSVR4 -DNO_LONG_DOUBLE])
294	APR_ADDTO(LIBS, [-lc])
295	;;
296    DS/90\ 7000-*-sysv4*)
297	APR_ADDTO(CPPFLAGS, [-DUXPDS])
298	;;
299    *-tandem-sysv4*)
300	APR_ADDTO(CPPFLAGS, [-DSVR4])
301	;;
302    *-ncr-sysv4)
303	APR_ADDTO(CPPFLAGS, [-DSVR4 -DMPRAS])
304	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
305	;;
306    *-sysv4*)
307	APR_ADDTO(CPPFLAGS, [-DSVR4])
308	APR_ADDTO(LIBS, [-lc])
309	;;
310    88k-encore-sysv4)
311	APR_ADDTO(CPPFLAGS, [-DSVR4 -DENCORE])
312	APR_ADDTO(LIBS, [-lPW])
313	;;
314    *-uts*)
315	PLATOSVERS=`echo $host | sed 's/^.*,//'`
316	case $PLATOSVERS in
317	    2*) APR_ADDTO(CPPFLAGS, [-DUTS21])
318	        APR_ADDTO(CFLAGS, [-Xa -eft])
319	        APR_ADDTO(LIBS, [-lbsd -la])
320	        ;;
321	    *)  APR_ADDTO(CPPFLAGS, [-DSVR4])
322	        APR_ADDTO(CFLAGS, [-Xa])
323	        ;;
324	esac
325	;;
326    *-ultrix)
327	APR_ADDTO(CPPFLAGS, [-DULTRIX])
328	APR_SETVAR(SHELL, [/bin/sh5])
329	;;
330    *powerpc-tenon-machten*)
331	APR_ADDTO(LDFLAGS, [-Xlstack=0x14000 -Xldelcsect])
332	;;
333    *-machten*)
334	APR_ADDTO(LDFLAGS, [-stack 0x14000])
335	;;
336    *convex-v11*)
337	APR_ADDTO(CPPFLAGS, [-DCONVEXOS11])
338	APR_SETIFNULL(CFLAGS, [-O1])
339	APR_ADDTO(CFLAGS, [-ext])
340	;;
341    i860-intel-osf1)
342	APR_ADDTO(CPPFLAGS, [-DPARAGON])
343	;;
344    *-sequent-ptx2.*.*)
345	APR_ADDTO(CPPFLAGS, [-DSEQUENT=20])
346	APR_ADDTO(CFLAGS, [-Wc,-pw])
347	APR_ADDTO(LIBS, [-linet -lc -lseq])
348	;;
349    *-sequent-ptx4.0.*)
350	APR_ADDTO(CPPFLAGS, [-DSEQUENT=40])
351	APR_ADDTO(CFLAGS, [-Wc,-pw])
352	APR_ADDTO(LIBS, [-linet -lc])
353	;;
354    *-sequent-ptx4.[[123]].*)
355	APR_ADDTO(CPPFLAGS, [-DSEQUENT=41])
356	APR_ADDTO(CFLAGS, [-Wc,-pw])
357	APR_ADDTO(LIBS, [-lc])
358	;;
359    *-sequent-ptx4.4.*)
360	APR_ADDTO(CPPFLAGS, [-DSEQUENT=44])
361	APR_ADDTO(CFLAGS, [-Wc,-pw])
362	APR_ADDTO(LIBS, [-lc])
363	;;
364    *-sequent-ptx4.5.*)
365	APR_ADDTO(CPPFLAGS, [-DSEQUENT=45])
366	APR_ADDTO(CFLAGS, [-Wc,-pw])
367	APR_ADDTO(LIBS, [-lc])
368	;;
369    *-sequent-ptx5.0.*)
370	APR_ADDTO(CPPFLAGS, [-DSEQUENT=50])
371	APR_ADDTO(CFLAGS, [-Wc,-pw])
372	APR_ADDTO(LIBS, [-lc])
373	;;
374    *NEWS-OS*)
375	APR_ADDTO(CPPFLAGS, [-DNEWSOS])
376	;;
377    *-riscix)
378	APR_ADDTO(CPPFLAGS, [-DRISCIX])
379	APR_SETIFNULL(CFLAGS, [-O])
380	;;
381    *-irix*)
382	APR_ADDTO(CPPFLAGS, [-D_POSIX_THREAD_SAFE_FUNCTIONS])
383	;;
384    *beos*)
385        APR_ADDTO(CPPFLAGS, [-DBEOS])
386        PLATOSVERS=`uname -r`
387        APR_SETIFNULL(apr_process_lock_is_global, [yes])
388        case $PLATOSVERS in
389            5.0.4)
390                APR_ADDTO(LDFLAGS, [-L/boot/beos/system/lib])
391                APR_ADDTO(LIBS, [-lbind -lsocket])
392                APR_ADDTO(CPPFLAGS,[-DBONE7])
393                ;;
394            5.1)
395                APR_ADDTO(LDFLAGS, [-L/boot/beos/system/lib])
396                APR_ADDTO(LIBS, [-lbind -lsocket])
397                ;;
398	esac
399	APR_ADDTO(CPPFLAGS, [-DSIGPROCMASK_SETS_THREAD_MASK])
400        ;;
401    4850-*.*)
402	APR_ADDTO(CPPFLAGS, [-DSVR4 -DMPRAS])
403	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
404	;;
405    drs6000*)
406	APR_ADDTO(CPPFLAGS, [-DSVR4])
407	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
408	;;
409    m88k-*-CX/SX|CYBER)
410	APR_ADDTO(CPPFLAGS, [-D_CX_SX])
411	APR_ADDTO(CFLAGS, [-Xa])
412	;;
413    *-tandem-oss)
414	APR_ADDTO(CPPFLAGS, [-D_TANDEM_SOURCE -D_XOPEN_SOURCE_EXTENDED=1])
415	;;
416    *-ibm-os390)
417        APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
418        APR_SETIFNULL(apr_sysvsem_is_global, [yes])
419        APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
420        APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
421        APR_SETIFNULL(apr_getservbyname_is_thread_safe, [yes])
422        AC_DEFINE(HAVE_ZOS_PTHREADS, 1, [Define for z/OS pthread API nuances])
423        APR_ADDTO(CPPFLAGS, [-U_NO_PROTO -DSIGPROCMASK_SETS_THREAD_MASK -DTCP_NODELAY=1])
424        ;;
425    *-ibm-as400)
426        APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
427        APR_SETIFNULL(apr_process_lock_is_global, [yes])
428        APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
429        APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
430        APR_SETIFNULL(apr_getservbyname_is_thread_safe, [yes])
431        ;;
432    *mingw*)
433        APR_ADDTO(INTERNAL_CPPFLAGS, -DBINPATH=$apr_builddir/test/.libs)
434        APR_ADDTO(CPPFLAGS, [-DWIN32 -D__MSVCRT__])
435        APR_ADDTO(LDFLAGS, [-Wl,--enable-auto-import,--subsystem,console])
436        APR_SETIFNULL(have_unicode_fs, [1])
437        APR_SETIFNULL(have_proc_invoked, [1])
438        APR_SETIFNULL(apr_lock_method, [win32])
439        APR_SETIFNULL(apr_process_lock_is_global, [yes])
440        APR_SETIFNULL(apr_cv_use_lfs64, [yes])
441        APR_SETIFNULL(apr_cv_osuuid, [yes])
442        APR_SETIFNULL(apr_cv_tcp_nodelay_with_cork, [no])
443        APR_SETIFNULL(apr_thread_func, [__stdcall])
444        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
445        APR_SETIFNULL(ac_cv_tcp_nodelay_inherited, [yes])
446        APR_SETIFNULL(ac_cv_file__dev_zero, [no])
447        APR_SETIFNULL(ac_cv_func_setpgrp_void, [no])
448        APR_SETIFNULL(ac_cv_func_mmap, [yes])
449        APR_SETIFNULL(ac_cv_define_sockaddr_in6, [yes])
450        APR_SETIFNULL(ac_cv_working_getaddrinfo, [yes])
451        APR_SETIFNULL(ac_cv_working_getnameinfo, [yes])
452        APR_SETIFNULL(ac_cv_func_gai_strerror, [yes])
453        case $host in
454            *mingw32*)
455                APR_SETIFNULL(apr_has_xthread_files, [1])
456                APR_SETIFNULL(apr_has_user, [1])
457                APR_SETIFNULL(apr_procattr_user_set_requires_password, [1])
458                dnl The real function is TransmitFile(), not sendfile(), but
459                dnl this bypasses the Linux/Solaris/AIX/etc. test and enables
460                dnl the TransmitFile() implementation.
461                APR_SETIFNULL(ac_cv_func_sendfile, [yes])
462                ;;
463            *mingwce)
464                APR_SETIFNULL(apr_has_xthread_files, [0])
465                APR_SETIFNULL(apr_has_user, [0])
466                APR_SETIFNULL(apr_procattr_user_set_requires_password, [0])
467                APR_SETIFNULL(ac_cv_func_sendfile, [no])
468                ;;
469        esac
470        ;;
471  esac
472
473fi
474])
475
476dnl
477dnl APR_CC_HINTS
478dnl
479dnl  Allows us to provide a default choice of compiler which
480dnl  the user can override.
481AC_DEFUN(APR_CC_HINTS, [
482case "$host" in
483  *-apple-aux3*)
484      APR_SETIFNULL(CC, [gcc])
485      ;;
486  bs2000*-siemens-sysv*)
487      APR_SETIFNULL(CC, [c89 -XLLML -XLLMK -XL -Kno_integer_overflow])
488      ;;
489  *convex-v11*)
490      APR_SETIFNULL(CC, [cc])
491      ;;
492  *-ibm-os390)
493      APR_SETIFNULL(CC, [cc])
494      ;;
495  *-ibm-as400)
496      APR_SETIFNULL(CC, [icc])
497      ;;
498  *-isc4*)
499      APR_SETIFNULL(CC, [gcc])
500      ;;
501  m88k-*-CX/SX|CYBER)
502      APR_SETIFNULL(CC, [cc])
503      ;;
504  *-next-openstep*)
505      APR_SETIFNULL(CC, [cc])
506      ;;
507  *-qnx32)
508      APR_SETIFNULL(CC, [cc -F])
509      ;;
510  *-tandem-oss)
511      APR_SETIFNULL(CC, [c89])
512      ;;
513  TPF)
514      APR_SETIFNULL(CC, [c89])
515      ;;
516esac
517])
518