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 extensions (both XS and non-xs)
20 ?S: included in the package source distribution. This information is
21 ?S: only really of use during the Perl build, as the list makes no
22 ?S: distinction between extensions which were build and installed, and
23 ?S: those which where not. See "extensions" for the list of extensions
24 ?S: actually built and available.
27 ?S: This variable holds a list of XS extension files we want to
28 ?S: link dynamically into the package. It is used by Makefile.
31 ?S: This variable holds a list of XS extension files we want to
32 ?S: link statically into the package. It is used by Makefile.
35 ?S: This variable holds a list of all non-xs extensions built and
36 ?S: installed by the package. By default, all non-xs extensions
37 ?S: distributed will be built, with the exception of platform-specific
38 ?S: extensions (currently only one VMS specific extension).
41 ?S: This variable holds a list of all extension files (both XS and
42 ?S: non-xs) installed with the package. It is propagated to Config.pm
43 ?S: and is typically used to test whether a particular extension
47 ?S: This variable holds either 'true' or 'false' to indicate
48 ?S: whether the POSIX extension should be used. The sole
49 ?S: use for this currently is to allow an easy mechanism
50 ?S: for hints files to indicate that POSIX will not compile
51 ?S: on a particular system.
54 ?S: This variable holds either 'true' or 'false' to indicate
55 ?S: whether the Opcode extension should be used. The sole
56 ?S: use for this currently is to allow an easy mechanism
57 ?S: for users to skip the Opcode extension from the Configure
60 ?T:xxx avail_ext this_ext tdir xs_extensions nonxs_extensions find_extensions
61 ?INIT:: set useposix=false in your hint file to disable the POSIX extension.
63 ?INIT:: set useopcode=false in your hint file to disable the Opcode extension.
65 ?LINT:extern noextensions
66 ?LINT:extern onlyextensions
70 echo "Looking for extensions..." >&4
71 : If we are using the old config.sh, nonxs_extensions and xs_extensions may
72 : contain old or inaccurate or duplicate values.
75 : We do not use find because it might not be available.
76 : We do not just use MANIFEST because the user may have dropped
77 : some additional extensions into the source tree and expect them
80 : Function to recursively find available extensions, ignoring DynaLoader
81 : NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
82 : In 5.10.1 and later, extensions are stored in directories
83 : like File-Glob instead of the older File/Glob/.
87 DynaLoader|dynaload) ;;
89 this_ext=`echo $xxx | $sed -e s/-/\\\//g`;
90 echo " $xs_extensions $nonxs_extensions" > $$.tmp;
91 if $contains " $this_ext " $$.tmp; then
93 echo "Duplicate directories detected for extension $xxx" >&4;
94 echo "Configure cannot correctly recover from this - shall I abort?" >&4;
103 echo "Ok. Stopping Configure." >&4;
104 echo "Please remove the duplicate directory (e.g. using git clean) and then re-run Configure" >&4;
107 echo "Ok. You will need to correct config.sh before running make." >&4;
109 $ls -1 $xxx > $$.tmp;
110 if $contains "\.xs$" $$.tmp > /dev/null 2>&1; then
111 xs_extensions="$xs_extensions $this_ext";
112 elif $contains "\.c$" $$.tmp > /dev/null 2>&1; then
113 xs_extensions="$xs_extensions $this_ext";
114 elif $test -d $xxx; then
115 nonxs_extensions="$nonxs_extensions $this_ext";
125 eval $find_extensions
129 eval $find_extensions
133 eval $find_extensions
136 xs_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
137 set X $nonxs_extensions
139 nonxs_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
141 known_extensions=`echo $nonxs_extensions $xs_extensions | tr ' ' $trnl | $sort | tr $trnl ' '`
143 : Now see which are supported on this system.
144 ?X: avail_ext lists available XS extensions.
146 for xxx in $xs_extensions ; do
148 ?X: Handle possible DOS 8.3 filename and case alterations
151 $define) avail_ext="$avail_ext $xxx" ;;
156 $define) avail_ext="$avail_ext $xxx" ;;
159 I18N/Langinfo|i18n_lan)
160 case "$i_langinfo$d_nl_langinfo" in
161 $define$define) avail_ext="$avail_ext $xxx" ;;
165 : XXX Do we need a useipcsysv variable here
166 case "${d_msg}${d_sem}${d_shm}" in
167 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
173 case "$osname-$use64bitint" in
176 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
179 *) avail_ext="$avail_ext $xxx" ;;
185 case "${i_dbm}${i_rpcsvcdbm}" in
187 case "$d_cplusplus" in
188 define) ;; # delete as a function name will not work
189 *) case "$osname-$use64bitint" in
192 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
195 *) avail_ext="$avail_ext $xxx" ;;
204 true|define|y) avail_ext="$avail_ext $xxx" ;;
209 true|define|y) avail_ext="$avail_ext $xxx" ;;
214 true|$define|y) avail_ext="$avail_ext $xxx" ;;
217 Sys/Syslog|sys/syslog)
218 : XXX syslog requires socket
220 true|$define|y) avail_ext="$avail_ext $xxx" ;;
224 case "$usethreads" in
226 case "$use5005threads" in
227 $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
231 threads|threads/shared)
232 # threads and threads::shared are special cases.
233 # To stop people from asking "Perl 5.8.0 was supposed
234 # to have this new fancy threads implementation but my
235 # perl doesn't have it" and from people trying to
236 # (re)install the threads module using CPAN.pm and
237 # CPAN.pm then offering to reinstall Perl 5.8.0,
238 # the threads.pm and threads/shared.pm will always be
239 # there, croaking informatively ("you need to rebuild
240 # all of Perl with threads, sorry") when threads haven't
243 avail_ext="$avail_ext $xxx"
249 cygwin) avail_ext="$avail_ext $xxx" ;;
252 XS/APItest|xs/apitest)
253 # This is just for testing. Skip it unless we have dynamic loading.
256 $define) avail_ext="$avail_ext $xxx" ;;
259 XS/Typemap|xs/typemap)
260 # This is just for testing. Skip it unless we have dynamic loading.
262 $define) avail_ext="$avail_ext $xxx" ;;
265 *) avail_ext="$avail_ext $xxx"
274 case "$onlyextensions" in
277 echo "You have requested that only certain extensions be included..." >&4
278 for i in $onlyextensions; do
279 case " $avail_ext " in
281 echo "Keeping extension $i."
282 keepextensions="$keepextensions $i"
284 *) echo "Ignoring extension $i." ;;
287 avail_ext="$keepextensions"
291 case "$noextensions" in
294 echo "You have requested that certain extensions be ignored..." >&4
295 for i in $avail_ext; do
296 case " $noextensions " in
297 *" $i "*) echo "Ignoring extension $i." ;;
298 *) echo "Keeping extension $i.";
299 keepextensions="$keepextensions $i"
303 avail_ext="$keepextensions"
307 : Now see which nonxs extensions are supported on this system.
308 : For now assume all are.
310 for xxx in $nonxs_extensions ; do
314 *) nonxs_ext="$nonxs_ext $xxx"
326 A number of extensions are supplied with $package. You may choose to
327 compile these extensions for dynamic loading (the default), compile
328 them into the $package executable (static loading), or not include
329 them at all. Answer "none" to include no extensions.
330 Note that DynaLoader is always built and need not be mentioned here.
333 case "$dynamic_ext" in
335 : Exclude those listed in static_ext
337 for xxx in $avail_ext; do
338 case " $static_ext " in
340 *) dflt="$dflt $xxx" ;;
347 *) dflt="$dynamic_ext"
348 # Perhaps we are reusing an old out-of-date config.sh.
351 if test X"$dynamic_ext" != X"$avail_ext"; then
353 NOTICE: Your previous config.sh list may be incorrect.
354 The extensions now available to you are
356 but the default list from your previous config.sh is
368 rp="What extensions do you wish to load dynamically?"
371 ?X: Use ' ' so a subsequent Configure will preserve that value.
372 none) dynamic_ext=' ' ;;
373 *) dynamic_ext="$ans" ;;
376 case "$static_ext" in
378 : Exclude those already listed in dynamic linking
380 for xxx in $avail_ext; do
381 case " $dynamic_ext " in
383 *) dflt="$dflt $xxx" ;;
390 *) dflt="$static_ext"
397 rp="What extensions do you wish to load statically?"
400 ?X: Use ' ' so a subsequent Configure will preserve that value.
401 none) static_ext=' ' ;;
402 *) static_ext="$ans" ;;
407 A number of extensions are supplied with $package. Answer "none"
408 to include no extensions.
409 Note that DynaLoader is always built and need not be mentioned here.
412 case "$static_ext" in
413 '') dflt="$avail_ext" ;;
414 *) dflt="$static_ext"
415 # Perhaps we are reusing an old out-of-date config.sh.
418 if test X"$static_ext" != X"$avail_ext"; then
420 NOTICE: Your previous config.sh list may be incorrect.
421 The extensions now available to you are
423 but the default list from your previous config.sh is
432 : Exclude those that are not xs extensions
436 rp="What extensions do you wish to include?"
439 ?X: Use ' ' so a subsequent Configure will preserve that value.
440 none) static_ext=' ' ;;
441 *) static_ext="$ans" ;;
446 # Encode is a special case. If we are building Encode as a static
447 # extension, we need to explicitly list its subextensions as well.
448 # For other nested extensions, this is handled automatically by
449 # the appropriate Makefile.PL.
450 case " $static_ext " in
451 *" Encode "*) # Add the subextensions of Encode
453 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
454 static_ext="$static_ext Encode/$xxx"
455 known_extensions="$known_extensions Encode/$xxx"
461 set X $dynamic_ext $static_ext $nonxs_ext
465 # Sanity check: We require an extension suitable for use with
466 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
467 # should show up as failures in the test suite, but it's helpful to
468 # catch them now.) The 'extensions' list is normally sorted
469 # alphabetically, so we need to accept either
470 # DB_File ... Fcntl ... IO ....
472 # Fcntl ... NDBM_File ... IO ....
473 case " $extensions" in
474 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
475 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
476 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
477 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
478 echo "WARNING: The Perl you are building will be quite crippled." >& 4