1 ?RCS: $Id: Extensions.U,v$
3 ?RCS: Copyright (c) 1996-1998, Andy Dougherty
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.
8 ?RCS: $Log: Extensions.U,v $
10 ?MAKE:known_extensions extensions dynamic_ext static_ext nonxs_ext \
11 useposix useopcode : \
12 Myread hint usedl d_sem d_socket i_db i_dbm i_rpcsvcdbm i_gdbm \
13 i_ndbm usethreads useithreads package test cat rsrc \
14 d_msg d_shm osname use64bitint i_langinfo d_nl_langinfo \
16 ?MAKE: -pick add $@ %<
19 ?S: This variable holds a list of all XS extensions included in
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.
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.
31 ?S: This variable holds a list of all non-xs extensions included
32 ?S: in the package. All of them will be built.
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
37 ?S: and is typically used to test whether a particular extesion
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.
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
54 ?T:xxx avail_ext tdir nonxs_extensions find_extensions
55 ?INIT:: set useposix=false in your hint file to disable the POSIX extension.
57 ?INIT:: set useopcode=false in your hint file to disable the Opcode extension.
59 ?LINT:extern noextensions
60 ?LINT:extern onlyextensions
63 echo "Looking for extensions..." >&4
64 : If we are using the old config.sh, known_extensions may contain
65 : old or inaccurate or duplicate values.
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
73 : Function to recursively find available extensions, ignoring DynaLoader
74 : NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
78 DynaLoader|dynaload) ;;
80 if $test -f $xxx/$xxx.xs -o -f $xxx/$xxx.c; then
81 known_extensions="$known_extensions $1$xxx";
82 elif $test -f $xxx/Makefile.PL; then
83 nonxs_extensions="$nonxs_extensions $1$xxx";
85 if $test -d $xxx -a $# -lt 10; then
88 eval $find_extensions;
100 eval $find_extensions
101 # Special case: Add in threads/shared since it is not picked up by the
102 # recursive find above (and adding in general recursive finding breaks
103 # SDBM_File/sdbm). A.D. 10/25/2001.
104 known_extensions="$known_extensions threads/shared"
105 set X $known_extensions
107 known_extensions="$*"
108 set X $nonxs_extensions
110 nonxs_extensions="$*"
113 : Now see which are supported on this system.
114 ?X: avail_ext lists available XS extensions.
116 for xxx in $known_extensions ; do
118 ?X: Handle possible DOS 8.3 filename and case alterations
121 $define) avail_ext="$avail_ext $xxx" ;;
126 $define) avail_ext="$avail_ext $xxx" ;;
129 I18N/Langinfo|i18n_lan)
130 case "$i_langinfo$d_nl_langinfo" in
131 $define$define) avail_ext="$avail_ext $xxx" ;;
137 case "$osname-$use64bitint" in
140 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
143 *) avail_ext="$avail_ext $xxx" ;;
149 case "${i_dbm}${i_rpcsvcdbm}" in
151 case "$osname-$use64bitint" in
154 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
157 *) avail_ext="$avail_ext $xxx" ;;
164 true|define|y) avail_ext="$avail_ext $xxx" ;;
169 true|define|y) avail_ext="$avail_ext $xxx" ;;
176 beos) ;; # not unless BONE
177 *) avail_ext="$avail_ext $xxx" ;;
182 Sys/Syslog|sys/syslog)
183 : XXX syslog requires socket
185 true|$define|y) avail_ext="$avail_ext $xxx" ;;
189 case "$usethreads" in
191 case "$useithreads" in
192 $undef|false|[nN]*) avail_ext="$avail_ext $xxx" ;;
198 cygwin) avail_ext="$avail_ext $xxx" ;;
201 XS/APItest|xs/apitest)
202 # This is just for testing. Skip it unless we have dynamic loading.
205 $define) avail_ext="$avail_ext $xxx" ;;
208 XS/Typemap|xs/typemap)
209 # This is just for testing. Skip it unless we have dynamic loading.
211 $define) avail_ext="$avail_ext $xxx" ;;
214 threads|threads/shared)
215 # threads and threads::shared are special cases.
216 # To stop people from asking "Perl 5.8.0 was supposed
217 # to have this new fancy threads implementation but my
218 # perl doesn't have it" and from people trying to
219 # (re)install the threads module using CPAN.pm and
220 # CPAN.pm then offering to reinstall Perl 5.8.0,
221 # the threads.pm and threads/shared.pm will always be
222 # there, croaking informatively ("you need to rebuild
223 # all of Perl with threads, sorry") when threads haven't
226 avail_ext="$avail_ext $xxx"
229 : XXX Do we need a useipcsysv variable here
230 case "${d_msg}${d_sem}${d_shm}" in
231 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
234 *) avail_ext="$avail_ext $xxx"
243 case "$onlyextensions" in
246 echo "You have requested that only certains extensions be included..." >&4
247 for i in $onlyextensions; do
248 case " $avail_ext " in
250 echo "Keeping extension $i."
251 keepextensions="$keepextensions $i"
253 *) echo "Ignoring extension $i." ;;
256 avail_ext="$keepextensions"
260 case "$noextensions" in
263 echo "You have requested that certain extensions be ignored..." >&4
264 for i in $avail_ext; do
265 case " $noextensions " in
266 *" $i "*) echo "Ignoring extension $i." ;;
267 *) echo "Keeping extension $i.";
268 keepextensions="$keepextensions $i"
272 avail_ext="$keepextensions"
276 : Now see which nonxs extensions are supported on this system.
277 : For now assume all are.
279 for xxx in $nonxs_extensions ; do
281 *) nonxs_ext="$nonxs_ext $xxx"
293 A number of extensions are supplied with $package. You may choose to
294 compile these extensions for dynamic loading (the default), compile
295 them into the $package executable (static loading), or not include
296 them at all. Answer "none" to include no extensions.
297 Note that DynaLoader is always built and need not be mentioned here.
300 case "$dynamic_ext" in
302 : Exclude those listed in static_ext
304 for xxx in $avail_ext; do
305 case " $static_ext " in
307 *) dflt="$dflt $xxx" ;;
314 *) dflt="$dynamic_ext"
315 # Perhaps we are reusing an old out-of-date config.sh.
318 if test X"$dynamic_ext" != X"$avail_ext"; then
320 NOTICE: Your previous config.sh list may be incorrect.
321 The extensions now available to you are
323 but the default list from your previous config.sh is
335 rp="What extensions do you wish to load dynamically?"
338 ?X: Use ' ' so a subsequent Configure will preserve that value.
339 none) dynamic_ext=' ' ;;
340 *) dynamic_ext="$ans" ;;
343 case "$static_ext" in
345 : Exclude those already listed in dynamic linking
347 for xxx in $avail_ext; do
348 case " $dynamic_ext " in
350 *) dflt="$dflt $xxx" ;;
357 *) dflt="$static_ext"
364 rp="What extensions do you wish to load statically?"
367 ?X: Use ' ' so a subsequent Configure will preserve that value.
368 none) static_ext=' ' ;;
369 *) static_ext="$ans" ;;
374 A number of extensions are supplied with $package. Answer "none"
375 to include no extensions.
376 Note that DynaLoader is always built and need not be mentioned here.
379 case "$static_ext" in
380 '') dflt="$avail_ext" ;;
381 *) dflt="$static_ext"
382 # Perhaps we are reusing an old out-of-date config.sh.
385 if test X"$static_ext" != X"$avail_ext"; then
387 NOTICE: Your previous config.sh list may be incorrect.
388 The extensions now available to you are
390 but the default list from your previous config.sh is
399 : Exclude those that are not xs extensions
403 rp="What extensions do you wish to include?"
406 ?X: Use ' ' so a subsequent Configure will preserve that value.
407 none) static_ext=' ' ;;
408 *) static_ext="$ans" ;;
413 # Encode is a special case. If we are building Encode as a static
414 # extension, we need to explicitly list its subextensions as well.
415 # For other nested extensions, this is handled automatically by
416 # the appropriate Makefile.PL.
417 case " $static_ext " in
418 *" Encode "*) # Add the subextensions of Encode
420 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
421 static_ext="$static_ext Encode/$xxx"
427 set X $dynamic_ext $static_ext $nonxs_ext
431 # Sanity check: We require an extension suitable for use with
432 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
433 # should show up as failures in the test suite, but it's helpful to
434 # catch them now.) The 'extensions' list is normally sorted
435 # alphabetically, so we need to accept either
436 # DB_File ... Fcntl ... IO ....
438 # Fcntl ... NDBM_File ... IO ....
439 case " $extensions" in
440 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
441 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
442 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
443 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
444 echo "WARNING: The Perl you are building will be quite crippled." >& 4