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`;
91 Scalar/List/Utils) this_ext="List/Util" ;;
92 PathTools) this_ext="Cwd" ;;
94 echo " $xs_extensions $nonxs_extensions" > $tdir/$$.tmp;
95 if $contains " $this_ext " $tdir/$$.tmp; then
97 echo "Duplicate directories detected for extension $xxx" >&4;
98 echo "Configure cannot correctly recover from this - shall I abort?" >&4;
107 echo "Ok. Stopping Configure." >&4;
108 echo "Please remove the duplicate directory (e.g. using git clean) and then re-run Configure" >&4;
111 echo "Ok. You will need to correct config.sh before running make." >&4;
113 $ls -1 $xxx > $tdir/$$.tmp;
114 if $contains "\.xs$" $tdir/$$.tmp > /dev/null 2>&1; then
115 xs_extensions="$xs_extensions $this_ext";
116 elif $contains "\.c$" $tdir/$$.tmp > /dev/null 2>&1; then
117 xs_extensions="$xs_extensions $this_ext";
118 elif $test -d $xxx; then
119 nonxs_extensions="$nonxs_extensions $this_ext";
129 eval $find_extensions
133 eval $find_extensions
137 eval $find_extensions
140 xs_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
141 set X $nonxs_extensions
143 nonxs_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
145 known_extensions=`echo $nonxs_extensions $xs_extensions | tr ' ' $trnl | $sort | tr $trnl ' '`
147 : Now see which are supported on this system.
148 ?X: avail_ext lists available XS extensions.
150 for xxx in $xs_extensions ; do
152 ?X: Handle possible DOS 8.3 filename and case alterations
155 $define) avail_ext="$avail_ext $xxx" ;;
160 $define) avail_ext="$avail_ext $xxx" ;;
163 I18N/Langinfo|i18n_lan)
164 case "$i_langinfo$d_nl_langinfo" in
165 $define$define) avail_ext="$avail_ext $xxx" ;;
169 : XXX Do we need a useipcsysv variable here
170 case "${d_msg}${d_sem}${d_shm}" in
171 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
177 case "$osname-$use64bitint" in
180 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
183 *) avail_ext="$avail_ext $xxx" ;;
189 case "${i_dbm}${i_rpcsvcdbm}" in
191 case "$d_cplusplus" in
192 define) ;; # delete as a function name will not work
193 *) case "$osname-$use64bitint" in
196 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
199 *) avail_ext="$avail_ext $xxx" ;;
208 true|define|y) avail_ext="$avail_ext $xxx" ;;
213 true|define|y) avail_ext="$avail_ext $xxx" ;;
218 true|$define|y) avail_ext="$avail_ext $xxx" ;;
221 Sys/Syslog|sys/syslog)
222 : XXX syslog requires socket
224 true|$define|y) avail_ext="$avail_ext $xxx" ;;
228 case "$usethreads" in
230 case "$use5005threads" in
231 $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
235 threads|threads/shared)
236 # threads and threads::shared are special cases.
237 # To stop people from asking "Perl 5.8.0 was supposed
238 # to have this new fancy threads implementation but my
239 # perl doesn't have it" and from people trying to
240 # (re)install the threads module using CPAN.pm and
241 # CPAN.pm then offering to reinstall Perl 5.8.0,
242 # the threads.pm and threads/shared.pm will always be
243 # there, croaking informatively ("you need to rebuild
244 # all of Perl with threads, sorry") when threads haven't
247 avail_ext="$avail_ext $xxx"
253 cygwin) avail_ext="$avail_ext $xxx" ;;
256 XS/APItest|xs/apitest)
257 # This is just for testing. Skip it unless we have dynamic loading.
260 $define) avail_ext="$avail_ext $xxx" ;;
263 XS/Typemap|xs/typemap)
264 # This is just for testing. Skip it unless we have dynamic loading.
266 $define) avail_ext="$avail_ext $xxx" ;;
269 *) avail_ext="$avail_ext $xxx"
278 case "$onlyextensions" in
281 echo "You have requested that only certain extensions be included..." >&4
282 for i in $onlyextensions; do
283 case " $avail_ext " in
285 echo "Keeping extension $i."
286 keepextensions="$keepextensions $i"
288 *) echo "Ignoring extension $i." ;;
291 avail_ext="$keepextensions"
295 case "$noextensions" in
298 echo "You have requested that certain extensions be ignored..." >&4
299 for i in $avail_ext; do
300 case " $noextensions " in
301 *" $i "*) echo "Ignoring extension $i." ;;
302 *) echo "Keeping extension $i.";
303 keepextensions="$keepextensions $i"
307 avail_ext="$keepextensions"
311 : Now see which nonxs extensions are supported on this system.
312 : For now assume all are.
314 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/$xxx"
459 known_extensions="$known_extensions Encode/$xxx"
465 set X $dynamic_ext $static_ext $nonxs_ext
469 # Sanity check: We require an extension suitable for use with
470 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
471 # should show up as failures in the test suite, but it's helpful to
472 # catch them now.) The 'extensions' list is normally sorted
473 # alphabetically, so we need to accept either
474 # DB_File ... Fcntl ... IO ....
476 # Fcntl ... NDBM_File ... IO ....
477 case " $extensions" in
478 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
479 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
480 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
481 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
482 echo "WARNING: The Perl you are building will be quite crippled." >& 4