This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Revert #29453
[metaconfig.git] / U / perl / Extensions.U
CommitLineData
959f3c4c
JH
1?RCS: $Id: Extensions.U,v$
2?RCS:
3?RCS: Copyright (c) 1996-1998, Andy Dougherty
4?RCS:
5?RCS: You may distribute under the terms of either the GNU General Public
6?RCS: License or the Artistic License, as specified in the README file.
7?RCS:
8?RCS: $Log: Extensions.U,v $
9?RCS:
10?MAKE:known_extensions extensions dynamic_ext static_ext nonxs_ext \
11 useposix useopcode : \
3c64a580 12 Myread hint usedl d_sem d_socket i_db i_dbm i_rpcsvcdbm i_gdbm \
4a2f2b60 13 i_ndbm usethreads useithreads package test cat rsrc \
d0abe53c 14 d_msg d_shm osname use64bitint i_langinfo d_nl_langinfo \
58aecb3f 15 libs
959f3c4c
JH
16?MAKE: -pick add $@ %<
17?Y:BOTTOM
18?S:known_extensions:
3c64a580 19?S: This variable holds a list of all XS extensions included in
959f3c4c
JH
20?S: the package.
21?S:.
22?S:dynamic_ext:
23?S: This variable holds a list of XS extension files we want to
24?S: link dynamically into the package. It is used by Makefile.
25?S:.
26?S:static_ext:
27?S: This variable holds a list of XS extension files we want to
28?S: link statically into the package. It is used by Makefile.
29?S:.
30?S:nonxs_ext:
31?S: This variable holds a list of all non-xs extensions included
32?S: in the package. All of them will be built.
33?S:.
34?S:extensions:
35?S: This variable holds a list of all extension files (both XS and
36?S: non-xs linked into the package. It is propagated to Config.pm
3c64a580 37?S: and is typically used to test whether a particular extesion
959f3c4c
JH
38?S: is available.
39?S:.
40?S:useposix:
41?S: This variable holds either 'true' or 'false' to indicate
42?S: whether the POSIX extension should be used. The sole
43?S: use for this currently is to allow an easy mechanism
44?S: for hints files to indicate that POSIX will not compile
45?S: on a particular system.
46?S:.
47?S:useopcode:
48?S: This variable holds either 'true' or 'false' to indicate
49?S: whether the Opcode extension should be used. The sole
50?S: use for this currently is to allow an easy mechanism
51?S: for users to skip the Opcode extension from the Configure
52?S: command line.
53?S:.
54?T:xxx avail_ext tdir nonxs_extensions find_extensions
55?INIT:: set useposix=false in your hint file to disable the POSIX extension.
56?INIT:useposix=true
57?INIT:: set useopcode=false in your hint file to disable the Opcode extension.
58?INIT:useopcode=true
3ae30915
JH
59?LINT:extern noextensions
60?LINT:extern onlyextensions
946dea48 61?T:keepextensions i
959f3c4c
JH
62echo " "
63echo "Looking for extensions..." >&4
64: If we are using the old config.sh, known_extensions may contain
65: old or inaccurate or duplicate values.
66known_extensions=''
67nonxs_extensions=''
68: We do not use find because it might not be available.
69: We do not just use MANIFEST because the user may have dropped
70: some additional extensions into the source tree and expect them
71: to be built.
72
73: Function to recursively find available extensions, ignoring DynaLoader
74: NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
75find_extensions='
76 for xxx in *; do
ba5f32a3
MB
77 case "$xxx" in
78 DynaLoader|dynaload) ;;
79 *)
80 if $test -f $xxx/$xxx.xs; then
81 known_extensions="$known_extensions $1$xxx";
82 elif $test -f $xxx/Makefile.PL; then
83 nonxs_extensions="$nonxs_extensions $1$xxx";
84 else
85 if $test -d $xxx -a $# -lt 10; then
86 set $1$xxx/ $*;
87 cd "$xxx";
88 eval $find_extensions;
89 cd ..;
90 shift;
91 fi;
92 fi
93 ;;
94 esac;
959f3c4c
JH
95 done'
96tdir=`pwd`
3720fc47 97cd "$rsrc/ext"
86a2f2c4 98set X
959f3c4c
JH
99shift
100eval $find_extensions
660a2481
JH
101# Special case: Add in threads/shared since it is not picked up by the
102# recursive find above (and adding in general recursive finding breaks
103# SDBM_File/sdbm). A.D. 10/25/2001.
ba335d16 104known_extensions="$known_extensions threads/shared"
959f3c4c
JH
105set X $nonxs_extensions
106shift
107nonxs_extensions="$*"
108set X $known_extensions
109shift
110known_extensions="$*"
3720fc47 111cd "$tdir"
959f3c4c
JH
112
113: Now see which are supported on this system.
114?X: avail_ext lists available XS extensions.
115avail_ext=''
116for xxx in $known_extensions ; do
117 case "$xxx" in
118?X: Handle possible DOS 8.3 filename and case alterations
119 DB_File|db_file)
120 case "$i_db" in
121 $define) avail_ext="$avail_ext $xxx" ;;
122 esac
123 ;;
124 GDBM_File|gdbm_fil)
3c64a580 125 case "$i_gdbm" in
959f3c4c
JH
126 $define) avail_ext="$avail_ext $xxx" ;;
127 esac
128 ;;
dfd712ee 129 I18N/Langinfo|i18n_lan)
3c64a580 130 case "$i_langinfo$d_nl_langinfo" in
0e5a028f
JH
131 $define$define) avail_ext="$avail_ext $xxx" ;;
132 esac
133 ;;
959f3c4c
JH
134 NDBM_File|ndbm_fil)
135 case "$i_ndbm" in
4ee071c7 136 $define)
33b2427b 137 case "$osname-$use64bitint" in
2862815c 138 hpux-define)
4ee071c7
JH
139 case "$libs" in
140 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
141 esac
142 ;;
143 *) avail_ext="$avail_ext $xxx" ;;
144 esac
145 ;;
959f3c4c
JH
146 esac
147 ;;
3c64a580 148 ODBM_File|odbm_fil)
959f3c4c 149 case "${i_dbm}${i_rpcsvcdbm}" in
4ee071c7 150 *"${define}"*)
33b2427b 151 case "$osname-$use64bitint" in
2862815c 152 hpux-define)
4ee071c7
JH
153 case "$libs" in
154 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
155 esac
156 ;;
157 *) avail_ext="$avail_ext $xxx" ;;
158 esac
159 ;;
959f3c4c
JH
160 esac
161 ;;
162 POSIX|posix)
163 case "$useposix" in
164 true|define|y) avail_ext="$avail_ext $xxx" ;;
165 esac
166 ;;
167 Opcode|opcode)
168 case "$useopcode" in
169 true|define|y) avail_ext="$avail_ext $xxx" ;;
170 esac
171 ;;
172 Socket|socket)
3c64a580 173 case "$d_socket" in
625b7e7f
JH
174 true|$define|y)
175 case "$osname" in
176 beos) ;; # not unless BONE
177 *) avail_ext="$avail_ext $xxx" ;;
178 esac
179 ;;
959f3c4c
JH
180 esac
181 ;;
fa92de3e
YST
182 Sys/Syslog|sys/syslog)
183 : XXX syslog requires socket
3c64a580 184 case "$d_socket" in
fa92de3e
YST
185 true|$define|y) avail_ext="$avail_ext $xxx" ;;
186 esac
187 ;;
959f3c4c 188 Thread|thread)
4a2f2b60
JH
189 case "$usethreads" in
190 true|$define|y)
191 case "$useithreads" in
192 $undef|false|[nN]*) avail_ext="$avail_ext $xxx" ;;
193 esac
80f8756f
JH
194 esac
195 ;;
6e939e10
AD
196 XS/APItest|xs/apitest)
197 # This is just for testing. Skip it unless we have dynamic loading.
198
199 case "$usedl" in
200 $define) avail_ext="$avail_ext $xxx" ;;
201 esac
202 ;;
203 XS/Typemap|xs/typemap)
204 # This is just for testing. Skip it unless we have dynamic loading.
205 case "$usedl" in
206 $define) avail_ext="$avail_ext $xxx" ;;
207 esac
208 ;;
4f2abfa6 209 threads|threads/shared)
1e86056f
JH
210 # threads and threads::shared are special cases.
211 # To stop people from asking "Perl 5.8.0 was supposed
212 # to have this new fancy threads implementation but my
213 # perl doesn't have it" and from people trying to
214 # (re)install the threads module using CPAN.pm and
215 # CPAN.pm then offering to reinstall Perl 5.8.0,
216 # the threads.pm and threads/shared.pm will always be
217 # there, croaking informatively ("you need to rebuild
218 # all of Perl with threads, sorry") when threads haven't
219 # been compiled in.
220 # --jhi
221 avail_ext="$avail_ext $xxx"
959f3c4c
JH
222 ;;
223 IPC/SysV|ipc/sysv)
224 : XXX Do we need a useipcsysv variable here
3c64a580 225 case "${d_msg}${d_sem}${d_shm}" in
959f3c4c
JH
226 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
227 esac
228 ;;
229 *) avail_ext="$avail_ext $xxx"
230 ;;
231 esac
232done
233
234set X $avail_ext
235shift
236avail_ext="$*"
237
3eb2ab03
JH
238case "$onlyextensions" in
239'') ;;
240*) keepextensions=''
241 echo "You have requested that only certains extensions be included..." >&4
242 for i in $onlyextensions; do
243 case " $avail_ext " in
244 *" $i "*)
245 echo "Keeping extension $i."
246 keepextensions="$keepextensions $i"
247 ;;
248 *) echo "Ignoring extension $i." ;;
249 esac
250 done
251 avail_ext="$keepextensions"
252 ;;
253esac
254
255case "$noextensions" in
256'') ;;
257*) keepextensions=''
258 echo "You have requested that certain extensions be ignored..." >&4
259 for i in $avail_ext; do
0ec877d1
JH
260 case " $noextensions " in
261 *" $i "*) echo "Ignoring extension $i." ;;
3eb2ab03
JH
262 *) echo "Keeping extension $i.";
263 keepextensions="$keepextensions $i"
264 ;;
265 esac
266 done
267 avail_ext="$keepextensions"
268 ;;
269esac
270
959f3c4c
JH
271: Now see which nonxs extensions are supported on this system.
272: For now assume all are.
273nonxs_ext=''
274for xxx in $nonxs_extensions ; do
275 case "$xxx" in
276 *) nonxs_ext="$nonxs_ext $xxx"
277 ;;
278 esac
279done
280
281set X $nonxs_ext
282shift
283nonxs_ext="$*"
284
285case $usedl in
286$define)
287 $cat <<EOM
288A number of extensions are supplied with $package. You may choose to
289compile these extensions for dynamic loading (the default), compile
290them into the $package executable (static loading), or not include
291them at all. Answer "none" to include no extensions.
292Note that DynaLoader is always built and need not be mentioned here.
293
294EOM
295 case "$dynamic_ext" in
a7eb1db8
MB
296 '')
297 : Exclude those listed in static_ext
298 dflt=''
299 for xxx in $avail_ext; do
300 case " $static_ext " in
301 *" $xxx "*) ;;
302 *) dflt="$dflt $xxx" ;;
303 esac
304 done
305 set X $dflt
306 shift
307 dflt="$*"
308 ;;
959f3c4c
JH
309 *) dflt="$dynamic_ext"
310 # Perhaps we are reusing an old out-of-date config.sh.
311 case "$hint" in
312 previous)
313 if test X"$dynamic_ext" != X"$avail_ext"; then
314 $cat <<EOM
3c64a580
RGS
315NOTICE: Your previous config.sh list may be incorrect.
316The extensions now available to you are
959f3c4c
JH
317 ${avail_ext}
318but the default list from your previous config.sh is
3c64a580 319 ${dynamic_ext}
959f3c4c
JH
320
321EOM
322 fi
323 ;;
324 esac
325 ;;
326 esac
327 case "$dflt" in
328 '') dflt=none;;
329 esac
330 rp="What extensions do you wish to load dynamically?"
331 . ./myread
332 case "$ans" in
333?X: Use ' ' so a subsequent Configure will preserve that value.
334 none) dynamic_ext=' ' ;;
335 *) dynamic_ext="$ans" ;;
336 esac
337
338 case "$static_ext" in
339 '')
340 : Exclude those already listed in dynamic linking
341 dflt=''
342 for xxx in $avail_ext; do
343 case " $dynamic_ext " in
344 *" $xxx "*) ;;
345 *) dflt="$dflt $xxx" ;;
346 esac
347 done
348 set X $dflt
349 shift
350 dflt="$*"
351 ;;
3c64a580 352 *) dflt="$static_ext"
959f3c4c
JH
353 ;;
354 esac
355
356 case "$dflt" in
357 '') dflt=none;;
358 esac
359 rp="What extensions do you wish to load statically?"
360 . ./myread
361 case "$ans" in
362?X: Use ' ' so a subsequent Configure will preserve that value.
363 none) static_ext=' ' ;;
364 *) static_ext="$ans" ;;
365 esac
366 ;;
367*)
368 $cat <<EOM
3c64a580
RGS
369A number of extensions are supplied with $package. Answer "none"
370to include no extensions.
959f3c4c
JH
371Note that DynaLoader is always built and need not be mentioned here.
372
373EOM
374 case "$static_ext" in
375 '') dflt="$avail_ext" ;;
376 *) dflt="$static_ext"
377 # Perhaps we are reusing an old out-of-date config.sh.
378 case "$hint" in
379 previous)
380 if test X"$static_ext" != X"$avail_ext"; then
381 $cat <<EOM
3c64a580
RGS
382NOTICE: Your previous config.sh list may be incorrect.
383The extensions now available to you are
959f3c4c
JH
384 ${avail_ext}
385but the default list from your previous config.sh is
3c64a580 386 ${static_ext}
959f3c4c
JH
387
388EOM
389 fi
390 ;;
391 esac
392 ;;
393 esac
394 : Exclude those that are not xs extensions
395 case "$dflt" in
396 '') dflt=none;;
397 esac
398 rp="What extensions do you wish to include?"
399 . ./myread
400 case "$ans" in
401?X: Use ' ' so a subsequent Configure will preserve that value.
402 none) static_ext=' ' ;;
403 *) static_ext="$ans" ;;
404 esac
405 ;;
406esac
3c64a580 407#
75423307
JH
408# Encode is a special case. If we are building Encode as a static
409# extension, we need to explicitly list its subextensions as well.
410# For other nested extensions, this is handled automatically by
411# the appropriate Makefile.PL.
412case " $static_ext " in
413 *" Encode "*) # Add the subextensions of Encode
414 cd "$rsrc/ext"
415 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
416 static_ext="$static_ext Encode/$xxx"
417 done
418 cd "$tdir"
419 ;;
420esac
959f3c4c
JH
421
422set X $dynamic_ext $static_ext $nonxs_ext
423shift
424extensions="$*"
425
9d9aa0de
JH
426# Sanity check: We require an extension suitable for use with
427# AnyDBM_File, as well as Fcntl and IO. (Failure to have these
428# should show up as failures in the test suite, but it's helpful to
429# catch them now.) The 'extensions' list is normally sorted
430# alphabetically, so we need to accept either
431# DB_File ... Fcntl ... IO ....
432# or something like
433# Fcntl ... NDBM_File ... IO ....
1af58dcc
JH
434case " $extensions" in
435*"_File "*" Fcntl "*" IO "*) ;; # DB_File
436*" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
437*" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
3ae30915
JH
438*) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
439 echo "WARNING: The Perl you are building will be quite crippled." >& 4
440 ;;
441esac
442