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; 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 # Ditto for IO/Compress/Base and IO/Compress/Zlib
109 nonxs_extensions="$nonxs_extensions IO/Compress/Base IO/Compress/Zlib"
110 set X $nonxs_extensions
112 nonxs_extensions="$*"
115 : Now see which are supported on this system.
116 ?X: avail_ext lists available XS extensions.
118 for xxx in $known_extensions ; do
120 ?X: Handle possible DOS 8.3 filename and case alterations
123 $define) avail_ext="$avail_ext $xxx" ;;
128 $define) avail_ext="$avail_ext $xxx" ;;
131 I18N/Langinfo|i18n_lan)
132 case "$i_langinfo$d_nl_langinfo" in
133 $define$define) avail_ext="$avail_ext $xxx" ;;
139 case "$osname-$use64bitint" in
142 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
145 *) avail_ext="$avail_ext $xxx" ;;
151 case "${i_dbm}${i_rpcsvcdbm}" in
153 case "$osname-$use64bitint" in
156 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
159 *) avail_ext="$avail_ext $xxx" ;;
166 true|define|y) avail_ext="$avail_ext $xxx" ;;
171 true|define|y) avail_ext="$avail_ext $xxx" ;;
178 beos) ;; # not unless BONE
179 *) avail_ext="$avail_ext $xxx" ;;
184 Sys/Syslog|sys/syslog)
185 : XXX syslog requires socket
187 true|$define|y) avail_ext="$avail_ext $xxx" ;;
191 case "$usethreads" in
193 case "$useithreads" in
194 $undef|false|[nN]*) avail_ext="$avail_ext $xxx" ;;
200 cygwin) avail_ext="$avail_ext $xxx" ;;
203 XS/APItest|xs/apitest)
204 # This is just for testing. Skip it unless we have dynamic loading.
207 $define) avail_ext="$avail_ext $xxx" ;;
210 XS/Typemap|xs/typemap)
211 # This is just for testing. Skip it unless we have dynamic loading.
213 $define) avail_ext="$avail_ext $xxx" ;;
216 threads|threads/shared)
217 # threads and threads::shared are special cases.
218 # To stop people from asking "Perl 5.8.0 was supposed
219 # to have this new fancy threads implementation but my
220 # perl doesn't have it" and from people trying to
221 # (re)install the threads module using CPAN.pm and
222 # CPAN.pm then offering to reinstall Perl 5.8.0,
223 # the threads.pm and threads/shared.pm will always be
224 # there, croaking informatively ("you need to rebuild
225 # all of Perl with threads, sorry") when threads haven't
228 avail_ext="$avail_ext $xxx"
231 : XXX Do we need a useipcsysv variable here
232 case "${d_msg}${d_sem}${d_shm}" in
233 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
236 *) avail_ext="$avail_ext $xxx"
245 case "$onlyextensions" in
248 echo "You have requested that only certains extensions be included..." >&4
249 for i in $onlyextensions; do
250 case " $avail_ext " in
252 echo "Keeping extension $i."
253 keepextensions="$keepextensions $i"
255 *) echo "Ignoring extension $i." ;;
258 avail_ext="$keepextensions"
262 case "$noextensions" in
265 echo "You have requested that certain extensions be ignored..." >&4
266 for i in $avail_ext; do
267 case " $noextensions " in
268 *" $i "*) echo "Ignoring extension $i." ;;
269 *) echo "Keeping extension $i.";
270 keepextensions="$keepextensions $i"
274 avail_ext="$keepextensions"
278 : Now see which nonxs extensions are supported on this system.
279 : For now assume all are.
281 for xxx in $nonxs_extensions ; do
283 *) nonxs_ext="$nonxs_ext $xxx"
295 A number of extensions are supplied with $package. You may choose to
296 compile these extensions for dynamic loading (the default), compile
297 them into the $package executable (static loading), or not include
298 them at all. Answer "none" to include no extensions.
299 Note that DynaLoader is always built and need not be mentioned here.
302 case "$dynamic_ext" in
304 : Exclude those listed in static_ext
306 for xxx in $avail_ext; do
307 case " $static_ext " in
309 *) dflt="$dflt $xxx" ;;
316 *) dflt="$dynamic_ext"
317 # Perhaps we are reusing an old out-of-date config.sh.
320 if test X"$dynamic_ext" != X"$avail_ext"; then
322 NOTICE: Your previous config.sh list may be incorrect.
323 The extensions now available to you are
325 but the default list from your previous config.sh is
337 rp="What extensions do you wish to load dynamically?"
340 ?X: Use ' ' so a subsequent Configure will preserve that value.
341 none) dynamic_ext=' ' ;;
342 *) dynamic_ext="$ans" ;;
345 case "$static_ext" in
347 : Exclude those already listed in dynamic linking
349 for xxx in $avail_ext; do
350 case " $dynamic_ext " in
352 *) dflt="$dflt $xxx" ;;
359 *) dflt="$static_ext"
366 rp="What extensions do you wish to load statically?"
369 ?X: Use ' ' so a subsequent Configure will preserve that value.
370 none) static_ext=' ' ;;
371 *) static_ext="$ans" ;;
376 A number of extensions are supplied with $package. Answer "none"
377 to include no extensions.
378 Note that DynaLoader is always built and need not be mentioned here.
381 case "$static_ext" in
382 '') dflt="$avail_ext" ;;
383 *) dflt="$static_ext"
384 # Perhaps we are reusing an old out-of-date config.sh.
387 if test X"$static_ext" != X"$avail_ext"; then
389 NOTICE: Your previous config.sh list may be incorrect.
390 The extensions now available to you are
392 but the default list from your previous config.sh is
401 : Exclude those that are not xs extensions
405 rp="What extensions do you wish to include?"
408 ?X: Use ' ' so a subsequent Configure will preserve that value.
409 none) static_ext=' ' ;;
410 *) static_ext="$ans" ;;
415 # Encode is a special case. If we are building Encode as a static
416 # extension, we need to explicitly list its subextensions as well.
417 # For other nested extensions, this is handled automatically by
418 # the appropriate Makefile.PL.
419 case " $static_ext " in
420 *" Encode "*) # Add the subextensions of Encode
422 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
423 static_ext="$static_ext Encode/$xxx"
429 set X $dynamic_ext $static_ext $nonxs_ext
433 # Sanity check: We require an extension suitable for use with
434 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
435 # should show up as failures in the test suite, but it's helpful to
436 # catch them now.) The 'extensions' list is normally sorted
437 # alphabetically, so we need to accept either
438 # DB_File ... Fcntl ... IO ....
440 # Fcntl ... NDBM_File ... IO ....
441 case " $extensions" in
442 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
443 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
444 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
445 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
446 echo "WARNING: The Perl you are building will be quite crippled." >& 4