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 uselanginfo : \
12 Myread hint usedl d_sem d_socket i_db i_dbm i_rpcsvcdbm i_gdbm \
13 d_ndbm usethreads package test cat rsrc \
14 d_msg d_shm osname use64bitint \
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
61 ?S: This variable holds either 'true' or 'false' to indicate
62 ?S: whether the I18N::Langinfo extension should be used. The sole
63 ?S: use for this currently is to allow an easy mechanism for users to skip
64 ?S: this extension from the Configure command line.
66 ?T:xxx avail_ext this_ext tdir xs_extensions nonxs_extensions find_extensions
67 ?INIT:: set useposix=false in your hint file to disable the POSIX extension.
69 ?INIT:: set useopcode=false in your hint file to disable the Opcode extension.
71 ?INIT:: set uselanginfo=false in your hint file to disable the I18N::Langinfo extension.
72 ?INIT:uselanginfo=true
73 ?LINT:extern noextensions
74 ?LINT:extern onlyextensions
78 echo "Looking for extensions..." >&4
79 : If we are using the old config.sh, nonxs_extensions and xs_extensions may
80 : contain old or inaccurate or duplicate values.
83 : We do not use find because it might not be available.
84 : We do not just use MANIFEST because the user may have dropped
85 : some additional extensions into the source tree and expect them
88 : Function to recursively find available extensions, ignoring DynaLoader
89 : NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
90 : In 5.10.1 and later, extensions are stored in directories
91 : like File-Glob instead of the older File/Glob/.
95 DynaLoader|dynaload) ;;
97 this_ext=`echo "$xxx" | $sed -e s/-/\\\//g`;
99 Scalar/List/Utils) this_ext="List/Util" ;;
100 PathTools) this_ext="Cwd" ;;
102 echo " $xs_extensions $nonxs_extensions" > "$tdir/$$.tmp";
103 if $contains " $this_ext " "$tdir/$$.tmp"; then
105 echo "Duplicate directories detected for extension $xxx" >&4;
106 echo "Configure cannot correctly recover from this - shall I abort?" >&4;
115 echo "Ok. Stopping Configure." >&4;
116 echo "Please remove the duplicate directory (e.g. using git clean) and then re-run Configure" >&4;
119 echo "Ok. You will need to correct config.sh before running make." >&4;
121 $ls -1 "$xxx" > "$tdir/$$.tmp";
122 if $contains "\.xs$" "$tdir/$$.tmp" > /dev/null 2>&1; then
123 xs_extensions="$xs_extensions $this_ext";
124 elif $contains "\.c$" "$tdir/$$.tmp" > /dev/null 2>&1; then
125 xs_extensions="$xs_extensions $this_ext";
126 elif $test -d "$xxx"; then
127 nonxs_extensions="$nonxs_extensions $this_ext";
129 $rm -f "$tdir/$$.tmp";
137 eval $find_extensions
141 eval $find_extensions
145 eval $find_extensions
148 xs_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
149 set X $nonxs_extensions
151 nonxs_extensions=`echo "$*" | tr ' ' $trnl | $sort | tr $trnl ' '`
153 known_extensions=`echo $nonxs_extensions $xs_extensions | tr ' ' $trnl | $sort | tr $trnl ' '`
155 : Now see which are supported on this system.
156 ?X: avail_ext lists available XS extensions.
158 for xxx in $xs_extensions ; do
160 ?X: Handle possible DOS 8.3 filename and case alterations
163 amigaos) avail_ext="$avail_ext $xxx" ;;
168 $define) avail_ext="$avail_ext $xxx" ;;
173 $define) avail_ext="$avail_ext $xxx" ;;
177 : XXX Do we need a useipcsysv variable here
178 case "${d_msg}${d_sem}${d_shm}" in
179 *"${define}"*) avail_ext="$avail_ext $xxx" ;;
185 case "$osname-$use64bitint" in
188 *-lndbm*) avail_ext="$avail_ext $xxx" ;;
191 *) avail_ext="$avail_ext $xxx" ;;
197 case "${i_dbm}${i_rpcsvcdbm}" in
199 case "$d_cplusplus" in
200 define) ;; # delete as a function name will not work
201 *) case "$osname-$use64bitint" in
204 *-ldbm*) avail_ext="$avail_ext $xxx" ;;
207 *) avail_ext="$avail_ext $xxx" ;;
216 true|define|y) avail_ext="$avail_ext $xxx" ;;
221 true|define|y) avail_ext="$avail_ext $xxx" ;;
226 true|$define|y) avail_ext="$avail_ext $xxx" ;;
229 I18N/Langinfo|langinfo)
230 case "$uselanginfo" in
231 true|define|y) avail_ext="$avail_ext $xxx" ;;
234 Sys/Syslog|sys/syslog)
236 amigaos) ;; # not really very useful on AmigaOS
238 : XXX syslog requires socket
240 true|$define|y) avail_ext="$avail_ext $xxx" ;;
245 threads|threads/shared)
246 # threads and threads::shared are special cases.
247 # To stop people from asking "Perl 5.8.0 was supposed
248 # to have this new fancy threads implementation but my
249 # perl doesn't have it" and from people trying to
250 # (re)install the threads module using CPAN.pm and
251 # CPAN.pm then offering to reinstall Perl 5.8.0,
252 # the threads.pm and threads/shared.pm will always be
253 # there, croaking informatively ("you need to rebuild
254 # all of Perl with threads, sorry") when threads haven't
257 avail_ext="$avail_ext $xxx"
263 cygwin) avail_ext="$avail_ext $xxx" ;;
266 XS/APItest|xs/apitest)
267 # This is just for testing. Skip it unless we have dynamic loading.
270 $define) avail_ext="$avail_ext $xxx" ;;
273 XS/Typemap|xs/typemap)
274 # This is just for testing. Skip it unless we have dynamic loading.
276 $define) avail_ext="$avail_ext $xxx" ;;
279 *) avail_ext="$avail_ext $xxx"
288 case "$onlyextensions" in
291 echo "You have requested that only certain extensions be included..." >&4
292 for i in $onlyextensions; do
293 case " $avail_ext " in
295 echo "Keeping extension $i."
296 keepextensions="$keepextensions $i"
298 *) echo "Ignoring extension $i." ;;
301 avail_ext="$keepextensions"
305 case "$noextensions" in
308 echo "You have requested that certain extensions be ignored..." >&4
309 for i in $avail_ext; do
310 case " $noextensions " in
311 *" $i "*) echo "Ignoring extension $i." ;;
312 *) echo "Keeping extension $i.";
313 keepextensions="$keepextensions $i"
317 avail_ext="$keepextensions"
321 : Now see which nonxs extensions are supported on this system.
322 : For now assume all are.
324 for xxx in $nonxs_extensions ; do
328 *) nonxs_ext="$nonxs_ext $xxx"
340 A number of extensions are supplied with $package. You may choose to
341 compile these extensions for dynamic loading (the default), compile
342 them into the $package executable (static loading), or not include
343 them at all. Answer "none" to include no extensions.
344 Note that DynaLoader is always built and need not be mentioned here.
347 case "$dynamic_ext" in
349 : Exclude those listed in static_ext
351 for xxx in $avail_ext; do
352 case " $static_ext " in
354 *) dflt="$dflt $xxx" ;;
361 *) dflt="$dynamic_ext"
362 # Perhaps we are reusing an old out-of-date config.sh.
365 if test X"$dynamic_ext" != X"$avail_ext"; then
367 NOTICE: Your previous config.sh list may be incorrect.
368 The extensions now available to you are
370 but the default list from your previous config.sh is
382 rp="What extensions do you wish to load dynamically?"
385 ?X: Use ' ' so a subsequent Configure will preserve that value.
386 none) dynamic_ext=' ' ;;
387 *) dynamic_ext="$ans" ;;
390 case "$static_ext" in
392 : Exclude those already listed in dynamic linking
394 for xxx in $avail_ext; do
395 case " $dynamic_ext " in
397 *) dflt="$dflt $xxx" ;;
404 *) dflt="$static_ext"
411 rp="What extensions do you wish to load statically?"
414 ?X: Use ' ' so a subsequent Configure will preserve that value.
415 none) static_ext=' ' ;;
416 *) static_ext="$ans" ;;
421 A number of extensions are supplied with $package. Answer "none"
422 to include no extensions.
423 Note that DynaLoader is always built and need not be mentioned here.
426 case "$static_ext" in
427 '') dflt="$avail_ext" ;;
428 *) dflt="$static_ext"
429 # Perhaps we are reusing an old out-of-date config.sh.
432 if test X"$static_ext" != X"$avail_ext"; then
434 NOTICE: Your previous config.sh list may be incorrect.
435 The extensions now available to you are
437 but the default list from your previous config.sh is
446 : Exclude those that are not xs extensions
450 rp="What extensions do you wish to include?"
453 ?X: Use ' ' so a subsequent Configure will preserve that value.
454 none) static_ext=' ' ;;
455 *) static_ext="$ans" ;;
460 # Encode is a special case. If we are building Encode as a static
461 # extension, we need to explicitly list its subextensions as well.
462 # For other nested extensions, this is handled automatically by
463 # the appropriate Makefile.PL.
464 case " $static_ext " in
465 *" Encode "*) # Add the subextensions of Encode
467 for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
468 static_ext="$static_ext Encode/$xxx"
469 known_extensions="$known_extensions Encode/$xxx"
475 set X $dynamic_ext $static_ext $nonxs_ext
479 # Sanity check: We require an extension suitable for use with
480 # AnyDBM_File, as well as Fcntl and IO. (Failure to have these
481 # should show up as failures in the test suite, but it's helpful to
482 # catch them now.) The 'extensions' list is normally sorted
483 # alphabetically, so we need to accept either
484 # DB_File ... Fcntl ... IO ....
486 # Fcntl ... NDBM_File ... IO ....
487 case " $extensions" in
488 *"_File "*" Fcntl "*" IO "*) ;; # DB_File
489 *" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
490 *" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
491 *) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
492 echo "WARNING: The Perl you are building will be quite crippled." >& 4