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 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
79 DynaLoader|dynaload) ;;
81 this_ext=`echo $xxx | $sed -e s/-/\\\//g`;
82 leaf=`echo $xxx | $sed -e s/.*-//`;
83 if $test -d File-Glob; then
84 if $test -f $xxx/$leaf.xs -o -f $xxx/$leaf.c; then
85 known_extensions="$known_extensions $this_ext";
86 elif $test -d $xxx; then
87 nonxs_extensions="$nonxs_extensions $this_ext";
90 if $test -f $xxx/$leaf.xs -o -f $xxx/$leaf.c; then
91 known_extensions="$known_extensions $1$this_ext";
92 elif $test -f $xxx/Makefile.PL; then
93 nonxs_extensions="$nonxs_extensions $1$this_ext";
95 if $test -d $xxx -a $# -lt 10; then
98 eval $find_extensions;
111 eval $find_extensions
112 if $test -d File-Glob; then
115 # Special case: Add in modules that nest beyond the first level.
116 # Currently threads/shared and Hash/Util/FieldHash, since they are
117 # not picked up by the recursive find above (and adding in general
118 # recursive finding breaks SDBM_File/sdbm).
119 # A.D. 20011025 (SDBM), ajgough 20071008 (FieldHash)
120 known_extensions="$known_extensions threads/shared Hash/Util/FieldHash"
122 set X $known_extensions
124 known_extensions="$*"
125 set X $nonxs_extensions
127 nonxs_extensions="$*"
130 : Now see which are supported on this system.
131 ?X: avail_ext lists available XS extensions.
133 for xxx in $known_extensions ; do
135 ?X: Handle possible DOS 8.3 filename and case alterations
138 $define) avail_ext="$avail_ext $xxx" ;;
143 $define) avail_ext="$avail_ext $xxx" ;;
146 I18N/Langinfo|i18n_lan)
147 case "$i_langinfo$d_nl_langinfo" in
148 $define$define) avail_ext="$avail_ext $xxx" ;;
152 : XXX Do we need a useipcsysv variable here
153 case "${d_msg}${d_sem}${d_shm}" in
154 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
160 case "$osname-$use64bitint" in
163 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
166 *) avail_ext="$avail_ext $xxx" ;;
172 case "${i_dbm}${i_rpcsvcdbm}" in
174 case "$d_cplusplus" in
175 define) ;; # delete as a function name will not work
176 *) case "$osname-$use64bitint" in
179 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
182 *) avail_ext="$avail_ext $xxx" ;;
191 true|define|y) avail_ext="$avail_ext $xxx" ;;
196 true|define|y) avail_ext="$avail_ext $xxx" ;;
203 beos) ;; # not unless BONE
204 *) avail_ext="$avail_ext $xxx" ;;
209 Sys/Syslog|sys/syslog)
210 : XXX syslog requires socket
212 true|$define|y) avail_ext="$avail_ext $xxx" ;;
216 case "$usethreads" in
218 case "$use5005threads" in
219 $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
223 threads|threads/shared)
224 # threads and threads::shared are special cases.
225 # To stop people from asking "Perl 5.8.0 was supposed
226 # to have this new fancy threads implementation but my
227 # perl doesn't have it" and from people trying to
228 # (re)install the threads module using CPAN.pm and
229 # CPAN.pm then offering to reinstall Perl 5.8.0,
230 # the threads.pm and threads/shared.pm will always be
231 # there, croaking informatively ("you need to rebuild
232 # all of Perl with threads, sorry") when threads haven't
235 avail_ext="$avail_ext $xxx"
241 cygwin) avail_ext="$avail_ext $xxx" ;;
244 XS/APItest|xs/apitest)
245 # This is just for testing. Skip it unless we have dynamic loading.
248 $define) avail_ext="$avail_ext $xxx" ;;
251 XS/Typemap|xs/typemap)
252 # This is just for testing. Skip it unless we have dynamic loading.
254 $define) avail_ext="$avail_ext $xxx" ;;
257 *) avail_ext="$avail_ext $xxx"
266 case "$onlyextensions" in
269 echo "You have requested that only certains extensions be included..." >&4
270 for i in $onlyextensions; do
271 case " $avail_ext " in
273 echo "Keeping extension $i."
274 keepextensions="$keepextensions $i"
276 *) echo "Ignoring extension $i." ;;
279 avail_ext="$keepextensions"
283 case "$noextensions" in
286 echo "You have requested that certain extensions be ignored..." >&4
287 for i in $avail_ext; do
288 case " $noextensions " in
289 *" $i "*) echo "Ignoring extension $i." ;;
290 *) echo "Keeping extension $i.";
291 keepextensions="$keepextensions $i"
295 avail_ext="$keepextensions"
299 : Now see which nonxs extensions are supported on this system.
300 : For now assume all are.
302 for xxx in $nonxs_extensions ; do
304 *) nonxs_ext="$nonxs_ext $xxx"
316 A number of extensions are supplied with $package. You may choose to
317 compile these extensions for dynamic loading (the default), compile
318 them into the $package executable (static loading), or not include
319 them at all. Answer "none" to include no extensions.
320 Note that DynaLoader is always built and need not be mentioned here.
323 case "$dynamic_ext" in
325 : Exclude those listed in static_ext
327 for xxx in $avail_ext; do
328 case " $static_ext " in
330 *) dflt="$dflt $xxx" ;;
337 *) dflt="$dynamic_ext"
338 # Perhaps we are reusing an old out-of-date config.sh.
341 if test X"$dynamic_ext" != X"$avail_ext"; then
343 NOTICE: Your previous config.sh list may be incorrect.
344 The extensions now available to you are
346 but the default list from your previous config.sh is
358 rp="What extensions do you wish to load dynamically?"
361 ?X: Use ' ' so a subsequent Configure will preserve that value.
362 none) dynamic_ext=' ' ;;
363 *) dynamic_ext="$ans" ;;
366 case "$static_ext" in
368 : Exclude those already listed in dynamic linking
370 for xxx in $avail_ext; do
371 case " $dynamic_ext " in
373 *) dflt="$dflt $xxx" ;;
380 *) dflt="$static_ext"
387 rp="What extensions do you wish to load statically?"
390 ?X: Use ' ' so a subsequent Configure will preserve that value.
391 none) static_ext=' ' ;;
392 *) static_ext="$ans" ;;
397 A number of extensions are supplied with $package. Answer "none"
398 to include no extensions.
399 Note that DynaLoader is always built and need not be mentioned here.
402 case "$static_ext" in
403 '') dflt="$avail_ext" ;;
404 *) dflt="$static_ext"
405 # Perhaps we are reusing an old out-of-date config.sh.
408 if test X"$static_ext" != X"$avail_ext"; then
410 NOTICE: Your previous config.sh list may be incorrect.
411 The extensions now available to you are
413 but the default list from your previous config.sh is
422 : Exclude those that are not xs extensions
426 rp="What extensions do you wish to include?"
429 ?X: Use ' ' so a subsequent Configure will preserve that value.
430 none) static_ext=' ' ;;
431 *) static_ext="$ans" ;;
436 # Encode is a special case. If we are building Encode as a static
437 # extension, we need to explicitly list its subextensions as well.
438 # For other nested extensions, this is handled automatically by
439 # the appropriate Makefile.PL.
440 case " $static_ext " in
441 *" Encode "*) # Add the subextensions of Encode
443 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
444 static_ext="$static_ext Encode/$xxx"
450 set X $dynamic_ext $static_ext $nonxs_ext
454 # Sanity check: We require an extension suitable for use with
455 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
456 # should show up as failures in the test suite, but it's helpful to
457 # catch them now.) The 'extensions' list is normally sorted
458 # alphabetically, so we need to accept either
459 # DB_File ... Fcntl ... IO ....
461 # Fcntl ... NDBM_File ... IO ....
462 case " $extensions" in
463 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
464 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
465 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
466 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
467 echo "WARNING: The Perl you are building will be quite crippled." >& 4