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 $find_extensions
101 # Special case: Add in modules that nest beyond the first level.
102 # Currently threads/shared and Hash/Util/FieldHash, since they are
103 # not picked up by the recursive find above (and adding in general
104 # recursive finding breaks SDBM_File/sdbm).
105 # A.D. 20011025 (SDBM), ajgough 20071008 (FieldHash)
106 known_extensions="$known_extensions threads/shared Hash/Util/FieldHash"
107 set X $known_extensions
109 known_extensions="$*"
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 $xxx" ;;
137 : XXX Do we need a useipcsysv variable here
138 case "${d_msg}${d_sem}${d_shm}" in
139 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
145 case "$osname-$use64bitint" in
148 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
151 *) avail_ext="$avail_ext $xxx" ;;
157 case "${i_dbm}${i_rpcsvcdbm}" in
159 case "$d_cplusplus" in
160 define) ;; # delete as a function name will not work
161 *) case "$osname-$use64bitint" in
164 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
167 *) avail_ext="$avail_ext $xxx" ;;
176 true|define|y) avail_ext="$avail_ext $xxx" ;;
181 true|define|y) avail_ext="$avail_ext $xxx" ;;
188 beos) ;; # not unless BONE
189 *) avail_ext="$avail_ext $xxx" ;;
194 Sys/Syslog|sys/syslog)
195 : XXX syslog requires socket
197 true|$define|y) avail_ext="$avail_ext $xxx" ;;
201 case "$usethreads" in
203 case "$use5005threads" in
204 $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
208 threads|threads/shared)
209 # threads and threads::shared are special cases.
210 # To stop people from asking "Perl 5.8.0 was supposed
211 # to have this new fancy threads implementation but my
212 # perl doesn't have it" and from people trying to
213 # (re)install the threads module using CPAN.pm and
214 # CPAN.pm then offering to reinstall Perl 5.8.0,
215 # the threads.pm and threads/shared.pm will always be
216 # there, croaking informatively ("you need to rebuild
217 # all of Perl with threads, sorry") when threads haven't
220 avail_ext="$avail_ext $xxx"
224 cygwin) avail_ext="$avail_ext $xxx" ;;
227 XS/APItest|xs/apitest)
228 # This is just for testing. Skip it unless we have dynamic loading.
231 $define) avail_ext="$avail_ext $xxx" ;;
234 XS/Typemap|xs/typemap)
235 # This is just for testing. Skip it unless we have dynamic loading.
237 $define) avail_ext="$avail_ext $xxx" ;;
240 *) avail_ext="$avail_ext $xxx"
249 case "$onlyextensions" in
252 echo "You have requested that only certains extensions be included..." >&4
253 for i in $onlyextensions; do
254 case " $avail_ext " in
256 echo "Keeping extension $i."
257 keepextensions="$keepextensions $i"
259 *) echo "Ignoring extension $i." ;;
262 avail_ext="$keepextensions"
266 case "$noextensions" in
269 echo "You have requested that certain extensions be ignored..." >&4
270 for i in $avail_ext; do
271 case " $noextensions " in
272 *" $i "*) echo "Ignoring extension $i." ;;
273 *) echo "Keeping extension $i.";
274 keepextensions="$keepextensions $i"
278 avail_ext="$keepextensions"
282 : Now see which nonxs extensions are supported on this system.
283 : For now assume all are.
285 for xxx in $nonxs_extensions ; do
287 *) nonxs_ext="$nonxs_ext $xxx"
299 A number of extensions are supplied with $package. You may choose to
300 compile these extensions for dynamic loading (the default), compile
301 them into the $package executable (static loading), or not include
302 them at all. Answer "none" to include no extensions.
303 Note that DynaLoader is always built and need not be mentioned here.
306 case "$dynamic_ext" in
308 : Exclude those listed in static_ext
310 for xxx in $avail_ext; do
311 case " $static_ext " in
313 *) dflt="$dflt $xxx" ;;
320 *) dflt="$dynamic_ext"
321 # Perhaps we are reusing an old out-of-date config.sh.
324 if test X"$dynamic_ext" != X"$avail_ext"; then
326 NOTICE: Your previous config.sh list may be incorrect.
327 The extensions now available to you are
329 but the default list from your previous config.sh is
341 rp="What extensions do you wish to load dynamically?"
344 ?X: Use ' ' so a subsequent Configure will preserve that value.
345 none) dynamic_ext=' ' ;;
346 *) dynamic_ext="$ans" ;;
349 case "$static_ext" in
351 : Exclude those already listed in dynamic linking
353 for xxx in $avail_ext; do
354 case " $dynamic_ext " in
356 *) dflt="$dflt $xxx" ;;
363 *) dflt="$static_ext"
370 rp="What extensions do you wish to load statically?"
373 ?X: Use ' ' so a subsequent Configure will preserve that value.
374 none) static_ext=' ' ;;
375 *) static_ext="$ans" ;;
380 A number of extensions are supplied with $package. Answer "none"
381 to include no extensions.
382 Note that DynaLoader is always built and need not be mentioned here.
385 case "$static_ext" in
386 '') dflt="$avail_ext" ;;
387 *) dflt="$static_ext"
388 # Perhaps we are reusing an old out-of-date config.sh.
391 if test X"$static_ext" != X"$avail_ext"; then
393 NOTICE: Your previous config.sh list may be incorrect.
394 The extensions now available to you are
396 but the default list from your previous config.sh is
405 : Exclude those that are not xs extensions
409 rp="What extensions do you wish to include?"
412 ?X: Use ' ' so a subsequent Configure will preserve that value.
413 none) static_ext=' ' ;;
414 *) static_ext="$ans" ;;
419 # Encode is a special case. If we are building Encode as a static
420 # extension, we need to explicitly list its subextensions as well.
421 # For other nested extensions, this is handled automatically by
422 # the appropriate Makefile.PL.
423 case " $static_ext " in
424 *" Encode "*) # Add the subextensions of Encode
426 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
427 static_ext="$static_ext Encode/$xxx"
433 set X $dynamic_ext $static_ext $nonxs_ext
437 # Sanity check: We require an extension suitable for use with
438 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
439 # should show up as failures in the test suite, but it's helpful to
440 # catch them now.) The 'extensions' list is normally sorted
441 # alphabetically, so we need to accept either
442 # DB_File ... Fcntl ... IO ....
444 # Fcntl ... NDBM_File ... IO ....
445 case " $extensions" in
446 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
447 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
448 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
449 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
450 echo "WARNING: The Perl you are building will be quite crippled." >& 4