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 use5005threads 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 $xxx" ;;
135 : XXX Do we need a useipcsysv variable here
136 case "${d_msg}${d_sem}${d_shm}" in
137 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
143 case "$osname-$use64bitint" in
146 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
149 *) avail_ext="$avail_ext $xxx" ;;
155 case "${i_dbm}${i_rpcsvcdbm}" in
157 case "$d_cplusplus" in
158 define) ;; # delete as a function name will not work
159 *) case "$osname-$use64bitint" in
162 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
165 *) avail_ext="$avail_ext $xxx" ;;
174 true|define|y) avail_ext="$avail_ext $xxx" ;;
179 true|define|y) avail_ext="$avail_ext $xxx" ;;
186 beos) ;; # not unless BONE
187 *) avail_ext="$avail_ext $xxx" ;;
192 Sys/Syslog|sys/syslog)
193 : XXX syslog requires socket
195 true|$define|y) avail_ext="$avail_ext $xxx" ;;
199 case "$usethreads" in
201 case "$use5005threads" in
202 $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
206 threads|threads/shared)
207 # threads and threads::shared are special cases.
208 # To stop people from asking "Perl 5.8.0 was supposed
209 # to have this new fancy threads implementation but my
210 # perl doesn't have it" and from people trying to
211 # (re)install the threads module using CPAN.pm and
212 # CPAN.pm then offering to reinstall Perl 5.8.0,
213 # the threads.pm and threads/shared.pm will always be
214 # there, croaking informatively ("you need to rebuild
215 # all of Perl with threads, sorry") when threads haven't
218 avail_ext="$avail_ext $xxx"
222 cygwin) avail_ext="$avail_ext $xxx" ;;
225 XS/APItest|xs/apitest)
226 # This is just for testing. Skip it unless we have dynamic loading.
229 $define) avail_ext="$avail_ext $xxx" ;;
232 XS/Typemap|xs/typemap)
233 # This is just for testing. Skip it unless we have dynamic loading.
235 $define) avail_ext="$avail_ext $xxx" ;;
238 *) avail_ext="$avail_ext $xxx"
247 case "$onlyextensions" in
250 echo "You have requested that only certains extensions be included..." >&4
251 for i in $onlyextensions; do
252 case " $avail_ext " in
254 echo "Keeping extension $i."
255 keepextensions="$keepextensions $i"
257 *) echo "Ignoring extension $i." ;;
260 avail_ext="$keepextensions"
264 case "$noextensions" in
267 echo "You have requested that certain extensions be ignored..." >&4
268 for i in $avail_ext; do
269 case " $noextensions " in
270 *" $i "*) echo "Ignoring extension $i." ;;
271 *) echo "Keeping extension $i.";
272 keepextensions="$keepextensions $i"
276 avail_ext="$keepextensions"
280 : Now see which nonxs extensions are supported on this system.
281 : For now assume all are.
283 for xxx in $nonxs_extensions ; do
285 *) nonxs_ext="$nonxs_ext $xxx"
297 A number of extensions are supplied with $package. You may choose to
298 compile these extensions for dynamic loading (the default), compile
299 them into the $package executable (static loading), or not include
300 them at all. Answer "none" to include no extensions.
301 Note that DynaLoader is always built and need not be mentioned here.
304 case "$dynamic_ext" in
306 : Exclude those listed in static_ext
308 for xxx in $avail_ext; do
309 case " $static_ext " in
311 *) dflt="$dflt $xxx" ;;
318 *) dflt="$dynamic_ext"
319 # Perhaps we are reusing an old out-of-date config.sh.
322 if test X"$dynamic_ext" != X"$avail_ext"; then
324 NOTICE: Your previous config.sh list may be incorrect.
325 The extensions now available to you are
327 but the default list from your previous config.sh is
339 rp="What extensions do you wish to load dynamically?"
342 ?X: Use ' ' so a subsequent Configure will preserve that value.
343 none) dynamic_ext=' ' ;;
344 *) dynamic_ext="$ans" ;;
347 case "$static_ext" in
349 : Exclude those already listed in dynamic linking
351 for xxx in $avail_ext; do
352 case " $dynamic_ext " in
354 *) dflt="$dflt $xxx" ;;
361 *) dflt="$static_ext"
368 rp="What extensions do you wish to load statically?"
371 ?X: Use ' ' so a subsequent Configure will preserve that value.
372 none) static_ext=' ' ;;
373 *) static_ext="$ans" ;;
378 A number of extensions are supplied with $package. Answer "none"
379 to include no extensions.
380 Note that DynaLoader is always built and need not be mentioned here.
383 case "$static_ext" in
384 '') dflt="$avail_ext" ;;
385 *) dflt="$static_ext"
386 # Perhaps we are reusing an old out-of-date config.sh.
389 if test X"$static_ext" != X"$avail_ext"; then
391 NOTICE: Your previous config.sh list may be incorrect.
392 The extensions now available to you are
394 but the default list from your previous config.sh is
403 : Exclude those that are not xs extensions
407 rp="What extensions do you wish to include?"
410 ?X: Use ' ' so a subsequent Configure will preserve that value.
411 none) static_ext=' ' ;;
412 *) static_ext="$ans" ;;
417 # Encode is a special case. If we are building Encode as a static
418 # extension, we need to explicitly list its subextensions as well.
419 # For other nested extensions, this is handled automatically by
420 # the appropriate Makefile.PL.
421 case " $static_ext " in
422 *" Encode "*) # Add the subextensions of Encode
424 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
425 static_ext="$static_ext Encode/$xxx"
431 set X $dynamic_ext $static_ext $nonxs_ext
435 # Sanity check: We require an extension suitable for use with
436 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
437 # should show up as failures in the test suite, but it's helpful to
438 # catch them now.) The 'extensions' list is normally sorted
439 # alphabetically, so we need to accept either
440 # DB_File ... Fcntl ... IO ....
442 # Fcntl ... NDBM_File ... IO ....
443 case " $extensions" in
444 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
445 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
446 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
447 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
448 echo "WARNING: The Perl you are building will be quite crippled." >& 4