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 d_ndbm usethreads use5005threads package test cat rsrc \
14 d_msg d_shm osname use64bitint i_langinfo d_nl_langinfo \
15 libs d_cplusplus sed ls rm contains trnl sort
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 extension
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 this_ext leaf 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
64 echo "Looking for extensions..." >&4
65 : If we are using the old config.sh, known_extensions may contain
66 : old or inaccurate or duplicate values.
69 : We do not use find because it might not be available.
70 : We do not just use MANIFEST because the user may have dropped
71 : some additional extensions into the source tree and expect them
74 : Function to recursively find available extensions, ignoring DynaLoader
75 : NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
76 : In 5.10.1 and later, extensions are stored in directories
77 : like File-Glob instead of the older File/Glob/.
81 DynaLoader|dynaload) ;;
83 this_ext=`echo $xxx | $sed -e s/-/\\\//g`;
84 leaf=`echo $xxx | $sed -e s/.*-//`;
85 if $test -d File; then
86 if $test -f $xxx/$leaf.xs -o -f $xxx/$leaf.c; then
87 known_extensions="$known_extensions $1$this_ext";
88 elif $test -f $xxx/Makefile.PL; then
89 nonxs_extensions="$nonxs_extensions $1$this_ext";
91 if $test -d $xxx -a $# -lt 10; then
94 eval $find_extensions;
100 $ls -1 $xxx > $$.tmp;
101 if $contains "\.xs$" $$.tmp > /dev/null 2>&1; then
102 known_extensions="$known_extensions $this_ext";
103 elif $contains "\.c$" $$.tmp > /dev/null 2>&1; then
104 known_extensions="$known_extensions $this_ext";
105 elif $test -d $xxx; then
106 nonxs_extensions="$nonxs_extensions $this_ext";
117 eval $find_extensions
121 eval $find_extensions
125 eval $find_extensions
126 if $test -d File-Glob; then
129 # Special case: Add in modules that nest beyond the first level.
130 # Currently threads/shared and Hash/Util/FieldHash, since they are
131 # not picked up by the recursive find above (and adding in general
132 # recursive finding breaks SDBM_File/sdbm).
133 # A.D. 20011025 (SDBM), ajgough 20071008 (FieldHash)
134 known_extensions="$known_extensions threads/shared Hash/Util/FieldHash"
136 set X $known_extensions
138 known_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
139 set X $nonxs_extensions
141 nonxs_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
144 : Now see which are supported on this system.
145 ?X: avail_ext lists available XS extensions.
147 for xxx in $known_extensions ; do
149 ?X: Handle possible DOS 8.3 filename and case alterations
152 $define) avail_ext="$avail_ext $xxx" ;;
157 $define) avail_ext="$avail_ext $xxx" ;;
160 I18N/Langinfo|i18n_lan)
161 case "$i_langinfo$d_nl_langinfo" in
162 $define$define) avail_ext="$avail_ext $xxx" ;;
166 : XXX Do we need a useipcsysv variable here
167 case "${d_msg}${d_sem}${d_shm}" in
168 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
174 case "$osname-$use64bitint" in
177 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
180 *) avail_ext="$avail_ext $xxx" ;;
186 case "${i_dbm}${i_rpcsvcdbm}" in
188 case "$d_cplusplus" in
189 define) ;; # delete as a function name will not work
190 *) case "$osname-$use64bitint" in
193 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
196 *) avail_ext="$avail_ext $xxx" ;;
205 true|define|y) avail_ext="$avail_ext $xxx" ;;
210 true|define|y) avail_ext="$avail_ext $xxx" ;;
217 beos) ;; # not unless BONE
218 *) avail_ext="$avail_ext $xxx" ;;
223 Sys/Syslog|sys/syslog)
224 : XXX syslog requires socket
226 true|$define|y) avail_ext="$avail_ext $xxx" ;;
230 case "$usethreads" in
232 case "$use5005threads" in
233 $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
237 threads|threads/shared)
238 # threads and threads::shared are special cases.
239 # To stop people from asking "Perl 5.8.0 was supposed
240 # to have this new fancy threads implementation but my
241 # perl doesn't have it" and from people trying to
242 # (re)install the threads module using CPAN.pm and
243 # CPAN.pm then offering to reinstall Perl 5.8.0,
244 # the threads.pm and threads/shared.pm will always be
245 # there, croaking informatively ("you need to rebuild
246 # all of Perl with threads, sorry") when threads haven't
249 avail_ext="$avail_ext $xxx"
255 cygwin) avail_ext="$avail_ext $xxx" ;;
258 XS/APItest|xs/apitest)
259 # This is just for testing. Skip it unless we have dynamic loading.
262 $define) avail_ext="$avail_ext $xxx" ;;
265 XS/Typemap|xs/typemap)
266 # This is just for testing. Skip it unless we have dynamic loading.
268 $define) avail_ext="$avail_ext $xxx" ;;
271 *) avail_ext="$avail_ext $xxx"
280 case "$onlyextensions" in
283 echo "You have requested that only certain extensions be included..." >&4
284 for i in $onlyextensions; do
285 case " $avail_ext " in
287 echo "Keeping extension $i."
288 keepextensions="$keepextensions $i"
290 *) echo "Ignoring extension $i." ;;
293 avail_ext="$keepextensions"
297 case "$noextensions" in
300 echo "You have requested that certain extensions be ignored..." >&4
301 for i in $avail_ext; do
302 case " $noextensions " in
303 *" $i "*) echo "Ignoring extension $i." ;;
304 *) echo "Keeping extension $i.";
305 keepextensions="$keepextensions $i"
309 avail_ext="$keepextensions"
313 : Now see which nonxs extensions are supported on this system.
314 : For now assume all are.
316 for xxx in $nonxs_extensions ; do
318 *) nonxs_ext="$nonxs_ext $xxx"
330 A number of extensions are supplied with $package. You may choose to
331 compile these extensions for dynamic loading (the default), compile
332 them into the $package executable (static loading), or not include
333 them at all. Answer "none" to include no extensions.
334 Note that DynaLoader is always built and need not be mentioned here.
337 case "$dynamic_ext" in
339 : Exclude those listed in static_ext
341 for xxx in $avail_ext; do
342 case " $static_ext " in
344 *) dflt="$dflt $xxx" ;;
351 *) dflt="$dynamic_ext"
352 # Perhaps we are reusing an old out-of-date config.sh.
355 if test X"$dynamic_ext" != X"$avail_ext"; then
357 NOTICE: Your previous config.sh list may be incorrect.
358 The extensions now available to you are
360 but the default list from your previous config.sh is
372 rp="What extensions do you wish to load dynamically?"
375 ?X: Use ' ' so a subsequent Configure will preserve that value.
376 none) dynamic_ext=' ' ;;
377 *) dynamic_ext="$ans" ;;
380 case "$static_ext" in
382 : Exclude those already listed in dynamic linking
384 for xxx in $avail_ext; do
385 case " $dynamic_ext " in
387 *) dflt="$dflt $xxx" ;;
394 *) dflt="$static_ext"
401 rp="What extensions do you wish to load statically?"
404 ?X: Use ' ' so a subsequent Configure will preserve that value.
405 none) static_ext=' ' ;;
406 *) static_ext="$ans" ;;
411 A number of extensions are supplied with $package. Answer "none"
412 to include no extensions.
413 Note that DynaLoader is always built and need not be mentioned here.
416 case "$static_ext" in
417 '') dflt="$avail_ext" ;;
418 *) dflt="$static_ext"
419 # Perhaps we are reusing an old out-of-date config.sh.
422 if test X"$static_ext" != X"$avail_ext"; then
424 NOTICE: Your previous config.sh list may be incorrect.
425 The extensions now available to you are
427 but the default list from your previous config.sh is
436 : Exclude those that are not xs extensions
440 rp="What extensions do you wish to include?"
443 ?X: Use ' ' so a subsequent Configure will preserve that value.
444 none) static_ext=' ' ;;
445 *) static_ext="$ans" ;;
450 # Encode is a special case. If we are building Encode as a static
451 # extension, we need to explicitly list its subextensions as well.
452 # For other nested extensions, this is handled automatically by
453 # the appropriate Makefile.PL.
454 case " $static_ext " in
455 *" Encode "*) # Add the subextensions of Encode
457 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
458 static_ext="$static_ext Encode/$xxx"
464 set X $dynamic_ext $static_ext $nonxs_ext
468 # Sanity check: We require an extension suitable for use with
469 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
470 # should show up as failures in the test suite, but it's helpful to
471 # catch them now.) The 'extensions' list is normally sorted
472 # alphabetically, so we need to accept either
473 # DB_File ... Fcntl ... IO ....
475 # Fcntl ... NDBM_File ... IO ....
476 case " $extensions" in
477 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
478 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
479 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
480 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
481 echo "WARNING: The Perl you are building will be quite crippled." >& 4