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
77 if $test "$1" = Compress/IO/ ; then
78 nonxs_extensions="$nonxs_extensions IO/Compress/$xxx";
81 DynaLoader|dynaload) ;;
83 if $test -f $xxx/$xxx.xs; then
84 known_extensions="$known_extensions $1$xxx";
85 elif $test -f $xxx/Makefile.PL; then
86 nonxs_extensions="$nonxs_extensions $1$xxx";
88 if $test -d $xxx -a $# -lt 10; then
91 eval $find_extensions;
104 eval $find_extensions
105 # Special case: Add in threads/shared since it is not picked up by the
106 # recursive find above (and adding in general recursive finding breaks
107 # SDBM_File/sdbm). A.D. 10/25/2001.
108 known_extensions="$known_extensions threads/shared"
109 set X $nonxs_extensions
111 nonxs_extensions="$*"
112 set X $known_extensions
114 known_extensions="$*"
117 : Now see which are supported on this system.
118 ?X: avail_ext lists available XS extensions.
120 for xxx in $known_extensions ; do
122 ?X: Handle possible DOS 8.3 filename and case alterations
125 $define) avail_ext="$avail_ext $xxx" ;;
130 $define) avail_ext="$avail_ext $xxx" ;;
133 I18N/Langinfo|i18n_lan)
134 case "$i_langinfo$d_nl_langinfo" in
135 $define$define) avail_ext="$avail_ext $xxx" ;;
141 case "$osname-$use64bitint" in
144 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
147 *) avail_ext="$avail_ext $xxx" ;;
153 case "${i_dbm}${i_rpcsvcdbm}" in
155 case "$osname-$use64bitint" in
158 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
161 *) avail_ext="$avail_ext $xxx" ;;
168 true|define|y) avail_ext="$avail_ext $xxx" ;;
173 true|define|y) avail_ext="$avail_ext $xxx" ;;
180 beos) ;; # not unless BONE
181 *) avail_ext="$avail_ext $xxx" ;;
186 Sys/Syslog|sys/syslog)
187 : XXX syslog requires socket
189 true|$define|y) avail_ext="$avail_ext $xxx" ;;
193 case "$usethreads" in
195 case "$useithreads" in
196 $undef|false|[nN]*) avail_ext="$avail_ext $xxx" ;;
200 XS/APItest|xs/apitest)
201 # This is just for testing. Skip it unless we have dynamic loading.
204 $define) avail_ext="$avail_ext $xxx" ;;
207 XS/Typemap|xs/typemap)
208 # This is just for testing. Skip it unless we have dynamic loading.
210 $define) avail_ext="$avail_ext $xxx" ;;
213 threads|threads/shared)
214 # threads and threads::shared are special cases.
215 # To stop people from asking "Perl 5.8.0 was supposed
216 # to have this new fancy threads implementation but my
217 # perl doesn't have it" and from people trying to
218 # (re)install the threads module using CPAN.pm and
219 # CPAN.pm then offering to reinstall Perl 5.8.0,
220 # the threads.pm and threads/shared.pm will always be
221 # there, croaking informatively ("you need to rebuild
222 # all of Perl with threads, sorry") when threads haven't
225 avail_ext="$avail_ext $xxx"
228 : XXX Do we need a useipcsysv variable here
229 case "${d_msg}${d_sem}${d_shm}" in
230 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
233 *) avail_ext="$avail_ext $xxx"
242 case "$onlyextensions" in
245 echo "You have requested that only certains extensions be included..." >&4
246 for i in $onlyextensions; do
247 case " $avail_ext " in
249 echo "Keeping extension $i."
250 keepextensions="$keepextensions $i"
252 *) echo "Ignoring extension $i." ;;
255 avail_ext="$keepextensions"
259 case "$noextensions" in
262 echo "You have requested that certain extensions be ignored..." >&4
263 for i in $avail_ext; do
264 case " $noextensions " in
265 *" $i "*) echo "Ignoring extension $i." ;;
266 *) echo "Keeping extension $i.";
267 keepextensions="$keepextensions $i"
271 avail_ext="$keepextensions"
275 : Now see which nonxs extensions are supported on this system.
276 : For now assume all are.
278 for xxx in $nonxs_extensions ; do
280 *) nonxs_ext="$nonxs_ext $xxx"
292 A number of extensions are supplied with $package. You may choose to
293 compile these extensions for dynamic loading (the default), compile
294 them into the $package executable (static loading), or not include
295 them at all. Answer "none" to include no extensions.
296 Note that DynaLoader is always built and need not be mentioned here.
299 case "$dynamic_ext" in
301 : Exclude those listed in static_ext
303 for xxx in $avail_ext; do
304 case " $static_ext " in
306 *) dflt="$dflt $xxx" ;;
313 *) dflt="$dynamic_ext"
314 # Perhaps we are reusing an old out-of-date config.sh.
317 if test X"$dynamic_ext" != X"$avail_ext"; then
319 NOTICE: Your previous config.sh list may be incorrect.
320 The extensions now available to you are
322 but the default list from your previous config.sh is
334 rp="What extensions do you wish to load dynamically?"
337 ?X: Use ' ' so a subsequent Configure will preserve that value.
338 none) dynamic_ext=' ' ;;
339 *) dynamic_ext="$ans" ;;
342 case "$static_ext" in
344 : Exclude those already listed in dynamic linking
346 for xxx in $avail_ext; do
347 case " $dynamic_ext " in
349 *) dflt="$dflt $xxx" ;;
356 *) dflt="$static_ext"
363 rp="What extensions do you wish to load statically?"
366 ?X: Use ' ' so a subsequent Configure will preserve that value.
367 none) static_ext=' ' ;;
368 *) static_ext="$ans" ;;
373 A number of extensions are supplied with $package. Answer "none"
374 to include no extensions.
375 Note that DynaLoader is always built and need not be mentioned here.
378 case "$static_ext" in
379 '') dflt="$avail_ext" ;;
380 *) dflt="$static_ext"
381 # Perhaps we are reusing an old out-of-date config.sh.
384 if test X"$static_ext" != X"$avail_ext"; then
386 NOTICE: Your previous config.sh list may be incorrect.
387 The extensions now available to you are
389 but the default list from your previous config.sh is
398 : Exclude those that are not xs extensions
402 rp="What extensions do you wish to include?"
405 ?X: Use ' ' so a subsequent Configure will preserve that value.
406 none) static_ext=' ' ;;
407 *) static_ext="$ans" ;;
412 # Encode is a special case. If we are building Encode as a static
413 # extension, we need to explicitly list its subextensions as well.
414 # For other nested extensions, this is handled automatically by
415 # the appropriate Makefile.PL.
416 case " $static_ext " in
417 *" Encode "*) # Add the subextensions of Encode
419 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
420 static_ext="$static_ext Encode/$xxx"
426 set X $dynamic_ext $static_ext $nonxs_ext
430 # Sanity check: We require an extension suitable for use with
431 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
432 # should show up as failures in the test suite, but it's helpful to
433 # catch them now.) The 'extensions' list is normally sorted
434 # alphabetically, so we need to accept either
435 # DB_File ... Fcntl ... IO ....
437 # Fcntl ... NDBM_File ... IO ....
438 case " $extensions" in
439 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
440 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
441 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
442 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
443 echo "WARNING: The Perl you are building will be quite crippled." >& 4