[metaconfig.git] / U / perl / Extensions.U

?RCS: $Id: Extensions.U,v$
?RCS:
?RCS: Copyright (c) 1996-1998, Andy Dougherty
?RCS:
?RCS: You may distribute under the terms of either the GNU General Public
?RCS: License or the Artistic License, as specified in the README file.
?RCS:
?RCS: $Log: Extensions.U,v $
?RCS:
?MAKE:known_extensions extensions dynamic_ext static_ext nonxs_ext \
	useposix useopcode : \
	Myread hint usedl d_sem d_socket i_db i_dbm i_rpcsvcdbm i_gdbm \ 
	i_ndbm usethreads useithreads package test cat rsrc \
	d_msg d_shm osname use64bitint i_langinfo d_nl_langinfo \
	libs
?MAKE:	-pick add $@ %<
?Y:BOTTOM
?S:known_extensions:
?S:	This variable holds a list of all XS extensions included in 
?S:	the package.
?S:.
?S:dynamic_ext:
?S:	This variable holds a list of XS extension files we want to
?S:	link dynamically into the package.  It is used by Makefile.
?S:.
?S:static_ext:
?S:	This variable holds a list of XS extension files we want to
?S:	link statically into the package.  It is used by Makefile.
?S:.
?S:nonxs_ext:
?S:	This variable holds a list of all non-xs extensions included
?S:	in the package.  All of them will be built.
?S:.
?S:extensions:
?S:	This variable holds a list of all extension files (both XS and
?S:	non-xs linked into the package.  It is propagated to Config.pm
?S:	and is typically used to test whether a particular extesion 
?S:	is available.
?S:.
?S:useposix:
?S:	This variable holds either 'true' or 'false' to indicate
?S:	whether the POSIX extension should be used.  The sole
?S:	use for this currently is to allow an easy mechanism
?S:	for hints files to indicate that POSIX will not compile
?S:	on a particular system.
?S:.
?S:useopcode:
?S:	This variable holds either 'true' or 'false' to indicate
?S:	whether the Opcode extension should be used.  The sole
?S:	use for this currently is to allow an easy mechanism
?S:	for users to skip the Opcode extension from the Configure
?S:	command line.
?S:.
?T:xxx avail_ext tdir nonxs_extensions find_extensions
?INIT:: set useposix=false in your hint file to disable the POSIX extension.
?INIT:useposix=true
?INIT:: set useopcode=false in your hint file to disable the Opcode extension.
?INIT:useopcode=true
?LINT:extern noextensions
?LINT:extern onlyextensions
?T:keepextensions i
echo " "
echo "Looking for extensions..." >&4
: If we are using the old config.sh, known_extensions may contain
: old or inaccurate or duplicate values.
known_extensions=''
nonxs_extensions=''
: We do not use find because it might not be available.
: We do not just use MANIFEST because the user may have dropped
: some additional extensions into the source tree and expect them
: to be built.

: Function to recursively find available extensions, ignoring DynaLoader
: NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
find_extensions='
    for xxx in *; do
       case "$xxx" in
           DynaLoader|dynaload) ;;
           *)
           if $test -f $xxx/$xxx.xs; then
               known_extensions="$known_extensions $1$xxx";
           elif $test -f $xxx/Makefile.PL; then
               nonxs_extensions="$nonxs_extensions $1$xxx";
           else
               if $test -d $xxx -a $# -lt 10; then
                   set $1$xxx/ $*;
                   cd "$xxx";
                   eval $find_extensions;
                   cd ..;
                   shift;
               fi;
           fi
           ;;
       esac;
    done'
tdir=`pwd`
cd "$rsrc/ext"
set X
shift
eval $find_extensions
# Special case:  Add in threads/shared since it is not picked up by the
# recursive find above (and adding in general recursive finding breaks
# SDBM_File/sdbm).  A.D.  10/25/2001.
known_extensions="$known_extensions threads/shared"
set X $nonxs_extensions
shift
nonxs_extensions="$*"
set X $known_extensions
shift
known_extensions="$*"
cd "$tdir"

: Now see which are supported on this system.
?X: avail_ext lists available XS extensions.
avail_ext=''
for xxx in $known_extensions ; do
	case "$xxx" in
?X: Handle possible DOS 8.3 filename and case alterations
	DB_File|db_file)
		case "$i_db" in
		$define) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	GDBM_File|gdbm_fil)
		case "$i_gdbm" in 
		$define) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	I18N/Langinfo|i18n_lan)
		case "$i_langinfo$d_nl_langinfo" in 
		$define$define) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	NDBM_File|ndbm_fil)
		case "$i_ndbm" in
		$define)
		    case "$osname-$use64bitint" in
		    hpux-define)
			case "$libs" in
			*-lndbm*) avail_ext="$avail_ext $xxx" ;;
			esac
			;;
		    *) avail_ext="$avail_ext $xxx" ;;
		    esac
		    ;;
		esac
		;;
	ODBM_File|odbm_fil) 
		case "${i_dbm}${i_rpcsvcdbm}" in
		*"${define}"*)
		    case "$osname-$use64bitint" in
		    hpux-define)
			case "$libs" in
			*-ldbm*) avail_ext="$avail_ext $xxx" ;;
			esac
			;;
		    *) avail_ext="$avail_ext $xxx" ;;
		    esac
		    ;;
		esac
		;;
	POSIX|posix)
		case "$useposix" in
		true|define|y) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	Opcode|opcode)
		case "$useopcode" in
		true|define|y) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	Socket|socket)
		case "$d_socket" in 
		true|$define|y)
		    case "$osname" in
		    beos) ;; # not unless BONE
		    *) avail_ext="$avail_ext $xxx" ;;
		    esac
		    ;;
		esac
		;;
	Sys/Syslog|sys/syslog)
		: XXX syslog requires socket
		case "$d_socket" in 
		true|$define|y) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	Thread|thread)
                case "$usethreads" in
                true|$define|y)
                        case "$useithreads" in
                        $undef|false|[nN]*) avail_ext="$avail_ext $xxx" ;;
                        esac
		esac
		;;
	XS/APItest|xs/apitest)
		# This is just for testing.  Skip it unless we have dynamic loading.

		case "$usedl" in
		$define) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	XS/Typemap|xs/typemap)
		# This is just for testing.  Skip it unless we have dynamic loading.
		case "$usedl" in
		$define) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	threads|threads/shared)
		# threads and threads::shared are special cases.
		# To stop people from asking "Perl 5.8.0 was supposed
		# to have this new fancy threads implementation but my
		# perl doesn't have it" and from people trying to
		# (re)install the threads module using CPAN.pm and
		# CPAN.pm then offering to reinstall Perl 5.8.0,
		# the threads.pm and threads/shared.pm will always be
		# there, croaking informatively ("you need to rebuild
		# all of Perl with threads, sorry") when threads haven't
		# been compiled in.
		# --jhi
		avail_ext="$avail_ext $xxx"
		;;
	IPC/SysV|ipc/sysv)
		: XXX Do we need a useipcsysv variable here
		case "${d_msg}${d_sem}${d_shm}" in 
		*"${define}"*) avail_ext="$avail_ext $xxx" ;;
		esac
		;;
	*)	avail_ext="$avail_ext $xxx"
		;;
	esac
done

set X $avail_ext
shift
avail_ext="$*"

case "$onlyextensions" in
'') ;;
*)  keepextensions=''
    echo "You have requested that only certains extensions be included..." >&4
    for i in $onlyextensions; do
        case " $avail_ext " in
        *" $i "*)
            echo "Keeping extension $i."
            keepextensions="$keepextensions $i"
            ;;
        *) echo "Ignoring extension $i." ;;
        esac
    done
    avail_ext="$keepextensions"
    ;;
esac

case "$noextensions" in
'') ;;
*)  keepextensions=''
    echo "You have requested that certain extensions be ignored..." >&4
    for i in $avail_ext; do
        case " $noextensions " in
        *" $i "*) echo "Ignoring extension $i." ;;
        *) echo "Keeping extension $i.";
           keepextensions="$keepextensions $i"
           ;;
        esac
    done
    avail_ext="$keepextensions"
    ;;
esac

: Now see which nonxs extensions are supported on this system.
: For now assume all are.
nonxs_ext=''
for xxx in $nonxs_extensions ; do
	case "$xxx" in
	*)	nonxs_ext="$nonxs_ext $xxx"
		;;
	esac
done

set X $nonxs_ext
shift
nonxs_ext="$*"

case $usedl in
$define)
	$cat <<EOM
A number of extensions are supplied with $package.  You may choose to
compile these extensions for dynamic loading (the default), compile
them into the $package executable (static loading), or not include
them at all.  Answer "none" to include no extensions.
Note that DynaLoader is always built and need not be mentioned here.

EOM
	case "$dynamic_ext" in
	'')
		: Exclude those listed in static_ext
		dflt=''
		for xxx in $avail_ext; do
			case " $static_ext " in
			*" $xxx "*) ;;
			*) dflt="$dflt $xxx" ;;
			esac
		done
		set X $dflt
		shift
		dflt="$*"
		;;
	*)	dflt="$dynamic_ext"
		# Perhaps we are reusing an old out-of-date config.sh.
		case "$hint" in
		previous)
			if test X"$dynamic_ext" != X"$avail_ext"; then
				$cat <<EOM
NOTICE:  Your previous config.sh list may be incorrect. 
The extensions now available to you are 
	${avail_ext}
but the default list from your previous config.sh is
	${dynamic_ext} 

EOM
			fi
			;;
		esac
		;;
	esac
	case "$dflt" in
	'')	dflt=none;;
	esac
	rp="What extensions do you wish to load dynamically?"
	. ./myread
	case "$ans" in
?X: Use ' ' so a subsequent Configure will preserve that value.
	none) dynamic_ext=' ' ;;
	*) dynamic_ext="$ans" ;;
	esac

	case "$static_ext" in
	'')
		: Exclude those already listed in dynamic linking
		dflt=''
		for xxx in $avail_ext; do
			case " $dynamic_ext " in
			*" $xxx "*) ;;
			*) dflt="$dflt $xxx" ;;
			esac
		done
		set X $dflt
		shift
		dflt="$*"
		;;
	*)  dflt="$static_ext" 
		;;
	esac

	case "$dflt" in
	'')	dflt=none;;
	esac
	rp="What extensions do you wish to load statically?"
	. ./myread
	case "$ans" in
?X: Use ' ' so a subsequent Configure will preserve that value.
	none) static_ext=' ' ;;
	*) static_ext="$ans" ;;
	esac
	;;
*)
	$cat <<EOM
A number of extensions are supplied with $package.  Answer "none" 
to include no extensions. 
Note that DynaLoader is always built and need not be mentioned here.

EOM
	case "$static_ext" in
	'') dflt="$avail_ext" ;;
	*)	dflt="$static_ext"
		# Perhaps we are reusing an old out-of-date config.sh.
		case "$hint" in
		previous)
			if test X"$static_ext" != X"$avail_ext"; then
				$cat <<EOM
NOTICE:  Your previous config.sh list may be incorrect. 
The extensions now available to you are 
	${avail_ext}
but the default list from your previous config.sh is
	${static_ext} 

EOM
			fi
			;;
		esac
		;;
	esac
	: Exclude those that are not xs extensions
	case "$dflt" in
	'')	dflt=none;;
	esac
	rp="What extensions do you wish to include?"
	. ./myread
	case "$ans" in
?X: Use ' ' so a subsequent Configure will preserve that value.
	none) static_ext=' ' ;;
	*) static_ext="$ans" ;;
	esac
	;;
esac
#        
# Encode is a special case.  If we are building Encode as a static
# extension, we need to explicitly list its subextensions as well.
# For other nested extensions, this is handled automatically by
# the appropriate Makefile.PL.
case " $static_ext " in
	*" Encode "*) # Add the subextensions of Encode
	cd "$rsrc/ext"
	for xxx in `ls Encode/*/Makefile.PL|awk -F/ '{print $2}'`; do
		static_ext="$static_ext Encode/$xxx"
	done
	cd "$tdir"
	;;
esac

set X $dynamic_ext $static_ext $nonxs_ext
shift
extensions="$*"

# Sanity check:  We require an extension suitable for use with
# AnyDBM_File, as well as Fcntl and IO.  (Failure to have these
# should show up as failures in the test suite, but it's helpful to
# catch them now.) The 'extensions' list is normally sorted
# alphabetically, so we need to accept either
#    DB_File ... Fcntl ... IO  ....
# or something like
#    Fcntl ... NDBM_File ... IO  ....
case " $extensions"  in
*"_File "*" Fcntl "*" IO "*) ;; # DB_File
*" Fcntl "*"_File "*" IO "*) ;; # GDBM_File
*" Fcntl "*" IO "*"_File "*) ;; # NDBM_File
*) echo "WARNING: Extensions DB_File or *DBM_File, Fcntl, and IO not configured." >&4
   echo "WARNING: The Perl you are building will be quite crippled." >& 4
   ;;
esac
Commit	Line	Data
959f3c4c JH	1	?RCS: $Id: Extensions.U,v$
	2	?RCS:
	3	?RCS: Copyright (c) 1996-1998, Andy Dougherty
	4	?RCS:
	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.
	7	?RCS:
	8	?RCS: $Log: Extensions.U,v $
	9	?RCS:
	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 \
4a2f2b60	13	i_ndbm usethreads useithreads package test cat rsrc \
d0abe53c	14	d_msg d_shm osname use64bitint i_langinfo d_nl_langinfo \
58aecb3f	15	libs
959f3c4c JH	16	?MAKE: -pick add $@ %<
	17	?Y:BOTTOM
	18	?S:known_extensions:
	19	?S: This variable holds a list of all XS extensions included in
	20	?S: the package.
	21	?S:.
	22	?S:dynamic_ext:
	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.
	25	?S:.
	26	?S:static_ext:
	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.
	29	?S:.
	30	?S:nonxs_ext:
	31	?S: This variable holds a list of all non-xs extensions included
	32	?S: in the package. All of them will be built.
	33	?S:.
	34	?S:extensions:
	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
	38	?S: is available.
	39	?S:.
	40	?S:useposix:
	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.
	46	?S:.
	47	?S:useopcode:
	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
	52	?S: command line.
	53	?S:.
	54	?T:xxx avail_ext tdir nonxs_extensions find_extensions
	55	?INIT:: set useposix=false in your hint file to disable the POSIX extension.
	56	?INIT:useposix=true
	57	?INIT:: set useopcode=false in your hint file to disable the Opcode extension.
	58	?INIT:useopcode=true
3ae30915 JH	59	?LINT:extern noextensions
3ae30915 JH	60	?LINT:extern onlyextensions
946dea48	61	?T:keepextensions i
959f3c4c JH	62	echo " "
	63	echo "Looking for extensions..." >&4
	64	: If we are using the old config.sh, known_extensions may contain
	65	: old or inaccurate or duplicate values.
	66	known_extensions=''
	67	nonxs_extensions=''
	68	: We do not use find because it might not be available.
	69	: We do not just use MANIFEST because the user may have dropped
	70	: some additional extensions into the source tree and expect them
	71	: to be built.
	72
	73	: Function to recursively find available extensions, ignoring DynaLoader
	74	: NOTE: recursion limit of 10 to prevent runaway in case of symlink madness
	75	find_extensions='
	76	for xxx in *; do
	77	case "$xxx" in
	78	DynaLoader\|dynaload) ;;
	79	*)
	80	if $test -f $xxx/$xxx.xs; then
	81	known_extensions="$known_extensions $1$xxx";
	82	elif $test -f $xxx/Makefile.PL; then
	83	nonxs_extensions="$nonxs_extensions $1$xxx";
	84	else
	85	if $test -d $xxx -a $# -lt 10; then
	86	set $1$xxx/ $*;
3720fc47	87	cd "$xxx";
959f3c4c JH	88	eval $find_extensions;
	89	cd ..;
	90	shift;
84e2cbfd	91	fi;
959f3c4c JH	92	fi
959f3c4c JH	93	;;
84e2cbfd	94	esac;
959f3c4c JH	95	done'
959f3c4c JH	96	tdir=`pwd`
3720fc47	97	cd "$rsrc/ext"
86a2f2c4	98	set X
959f3c4c JH	99	shift
959f3c4c JH	100	eval $find_extensions
660a2481 JH	101	# Special case: Add in threads/shared since it is not picked up by the
	102	# recursive find above (and adding in general recursive finding breaks
	103	# SDBM_File/sdbm). A.D. 10/25/2001.
ba335d16	104	known_extensions="$known_extensions threads/shared"
959f3c4c JH	105	set X $nonxs_extensions
	106	shift
	107	nonxs_extensions="$*"
	108	set X $known_extensions
	109	shift
	110	known_extensions="$*"
3720fc47	111	cd "$tdir"
959f3c4c JH	112
	113	: Now see which are supported on this system.
	114	?X: avail_ext lists available XS extensions.
	115	avail_ext=''
	116	for xxx in $known_extensions ; do
	117	case "$xxx" in
	118	?X: Handle possible DOS 8.3 filename and case alterations
	119	DB_File\|db_file)
	120	case "$i_db" in
	121	$define) avail_ext="$avail_ext $xxx" ;;
	122	esac
	123	;;
	124	GDBM_File\|gdbm_fil)
	125	case "$i_gdbm" in
	126	$define) avail_ext="$avail_ext $xxx" ;;
	127	esac
	128	;;
dfd712ee	129	I18N/Langinfo\|i18n_lan)
0e5a028f JH	130	case "$i_langinfo$d_nl_langinfo" in
	131	$define$define) avail_ext="$avail_ext $xxx" ;;
	132	esac
	133	;;
959f3c4c JH	134	NDBM_File\|ndbm_fil)
959f3c4c JH	135	case "$i_ndbm" in
4ee071c7	136	$define)
33b2427b	137	case "$osname-$use64bitint" in
2862815c	138	hpux-define)
4ee071c7 JH	139	case "$libs" in
	140	-lndbm) avail_ext="$avail_ext $xxx" ;;
	141	esac
	142	;;
	143	*) avail_ext="$avail_ext $xxx" ;;
	144	esac
	145	;;
959f3c4c JH	146	esac
	147	;;
	148	ODBM_File\|odbm_fil)
	149	case "${i_dbm}${i_rpcsvcdbm}" in
4ee071c7	150	"${define}")
33b2427b	151	case "$osname-$use64bitint" in
2862815c	152	hpux-define)
4ee071c7 JH	153	case "$libs" in
	154	-ldbm) avail_ext="$avail_ext $xxx" ;;
	155	esac
	156	;;
	157	*) avail_ext="$avail_ext $xxx" ;;
	158	esac
	159	;;
959f3c4c JH	160	esac
	161	;;
	162	POSIX\|posix)
	163	case "$useposix" in
	164	true\|define\|y) avail_ext="$avail_ext $xxx" ;;
	165	esac
	166	;;
	167	Opcode\|opcode)
	168	case "$useopcode" in
	169	true\|define\|y) avail_ext="$avail_ext $xxx" ;;
	170	esac
	171	;;
	172	Socket\|socket)
	173	case "$d_socket" in
625b7e7f JH	174	true\|$define\|y)
	175	case "$osname" in
	176	beos) ;; # not unless BONE
	177	*) avail_ext="$avail_ext $xxx" ;;
	178	esac
	179	;;
959f3c4c JH	180	esac
959f3c4c JH	181	;;
fa92de3e YST	182	Sys/Syslog\|sys/syslog)
	183	: XXX syslog requires socket
	184	case "$d_socket" in
	185	true\|$define\|y) avail_ext="$avail_ext $xxx" ;;
	186	esac
	187	;;
959f3c4c	188	Thread\|thread)
4a2f2b60 JH	189	case "$usethreads" in
	190	true\|$define\|y)
	191	case "$useithreads" in
	192	$undef\|false\|[nN]*) avail_ext="$avail_ext $xxx" ;;
	193	esac
80f8756f JH	194	esac
80f8756f JH	195	;;
6e939e10 AD	196	XS/APItest\|xs/apitest)
	197	# This is just for testing. Skip it unless we have dynamic loading.
	198
	199	case "$usedl" in
	200	$define) avail_ext="$avail_ext $xxx" ;;
	201	esac
	202	;;
	203	XS/Typemap\|xs/typemap)
	204	# This is just for testing. Skip it unless we have dynamic loading.
	205	case "$usedl" in
	206	$define) avail_ext="$avail_ext $xxx" ;;
	207	esac
	208	;;
4f2abfa6	209	threads\|threads/shared)
1e86056f JH	210	# threads and threads::shared are special cases.
	211	# To stop people from asking "Perl 5.8.0 was supposed
	212	# to have this new fancy threads implementation but my
	213	# perl doesn't have it" and from people trying to
	214	# (re)install the threads module using CPAN.pm and
	215	# CPAN.pm then offering to reinstall Perl 5.8.0,
	216	# the threads.pm and threads/shared.pm will always be
	217	# there, croaking informatively ("you need to rebuild
	218	# all of Perl with threads, sorry") when threads haven't
	219	# been compiled in.
	220	# --jhi
	221	avail_ext="$avail_ext $xxx"
959f3c4c JH	222	;;
	223	IPC/SysV\|ipc/sysv)
	224	: XXX Do we need a useipcsysv variable here
	225	case "${d_msg}${d_sem}${d_shm}" in
	226	"${define}") avail_ext="$avail_ext $xxx" ;;
	227	esac
	228	;;
	229	*) avail_ext="$avail_ext $xxx"
	230	;;
	231	esac
	232	done
	233
	234	set X $avail_ext
	235	shift
	236	avail_ext="$*"
	237
3eb2ab03 JH	238	case "$onlyextensions" in
	239	'') ;;
	240	*) keepextensions=''
	241	echo "You have requested that only certains extensions be included..." >&4
	242	for i in $onlyextensions; do
	243	case " $avail_ext " in
	244	" $i ")
	245	echo "Keeping extension $i."
	246	keepextensions="$keepextensions $i"
	247	;;
	248	*) echo "Ignoring extension $i." ;;
	249	esac
	250	done
	251	avail_ext="$keepextensions"
	252	;;
	253	esac
	254
	255	case "$noextensions" in
	256	'') ;;
	257	*) keepextensions=''
	258	echo "You have requested that certain extensions be ignored..." >&4
	259	for i in $avail_ext; do
0ec877d1 JH	260	case " $noextensions " in
0ec877d1 JH	261	" $i ") echo "Ignoring extension $i." ;;
3eb2ab03 JH	262	*) echo "Keeping extension $i.";
	263	keepextensions="$keepextensions $i"
	264	;;
	265	esac
	266	done
	267	avail_ext="$keepextensions"
	268	;;
	269	esac
	270
959f3c4c JH	271	: Now see which nonxs extensions are supported on this system.
	272	: For now assume all are.
	273	nonxs_ext=''
	274	for xxx in $nonxs_extensions ; do
	275	case "$xxx" in
	276	*) nonxs_ext="$nonxs_ext $xxx"
	277	;;
	278	esac
	279	done
	280
	281	set X $nonxs_ext
	282	shift
	283	nonxs_ext="$*"
	284
	285	case $usedl in
	286	$define)
	287	$cat <<EOM
	288	A number of extensions are supplied with $package. You may choose to
	289	compile these extensions for dynamic loading (the default), compile
	290	them into the $package executable (static loading), or not include
	291	them at all. Answer "none" to include no extensions.
	292	Note that DynaLoader is always built and need not be mentioned here.
	293
	294	EOM
	295	case "$dynamic_ext" in
a7eb1db8 MB	296	'')
	297	: Exclude those listed in static_ext
	298	dflt=''
	299	for xxx in $avail_ext; do
	300	case " $static_ext " in
	301	" $xxx ") ;;
	302	*) dflt="$dflt $xxx" ;;
	303	esac
	304	done
	305	set X $dflt
	306	shift
	307	dflt="$*"
	308	;;
959f3c4c JH	309	*) dflt="$dynamic_ext"
	310	# Perhaps we are reusing an old out-of-date config.sh.
	311	case "$hint" in
	312	previous)
	313	if test X"$dynamic_ext" != X"$avail_ext"; then
	314	$cat <<EOM
	315	NOTICE: Your previous config.sh list may be incorrect.
	316	The extensions now available to you are
	317	${avail_ext}
	318	but the default list from your previous config.sh is
	319	${dynamic_ext}
	320
	321	EOM
	322	fi
	323	;;
	324	esac
	325	;;
	326	esac
	327	case "$dflt" in
	328	'') dflt=none;;
	329	esac
	330	rp="What extensions do you wish to load dynamically?"
	331	. ./myread
	332	case "$ans" in
	333	?X: Use ' ' so a subsequent Configure will preserve that value.
	334	none) dynamic_ext=' ' ;;
	335	*) dynamic_ext="$ans" ;;
	336	esac
	337
	338	case "$static_ext" in
	339	'')
	340	: Exclude those already listed in dynamic linking
	341	dflt=''
	342	for xxx in $avail_ext; do
	343	case " $dynamic_ext " in
	344	" $xxx ") ;;
	345	*) dflt="$dflt $xxx" ;;
	346	esac
	347	done
	348	set X $dflt
	349	shift
	350	dflt="$*"
	351	;;
	352	*) dflt="$static_ext"
	353	;;
	354	esac
	355
	356	case "$dflt" in
	357	'') dflt=none;;
	358	esac
	359	rp="What extensions do you wish to load statically?"
	360	. ./myread
	361	case "$ans" in
	362	?X: Use ' ' so a subsequent Configure will preserve that value.
	363	none) static_ext=' ' ;;
	364	*) static_ext="$ans" ;;
	365	esac
	366	;;
	367	*)
	368	$cat <<EOM
	369	A number of extensions are supplied with $package. Answer "none"
	370	to include no extensions.
	371	Note that DynaLoader is always built and need not be mentioned here.
	372
373	EOM
374	case "$static_ext" in
375	'') dflt="$avail_ext" ;;
376	*) dflt="$static_ext"
377	# Perhaps we are reusing an old out-of-date config.sh.
378	case "$hint" in
379	previous)
380	if test X"$static_ext" != X"$avail_ext"; then
381	$cat <<EOM
382	NOTICE: Your previous config.sh list may be incorrect.
383	The extensions now available to you are
384	${avail_ext}
385	but the default list from your previous config.sh is
386	${static_ext}
387
388	EOM
389	fi
390	;;
391	esac
392	;;
393	esac
394	: Exclude those that are not xs extensions
395	case "$dflt" in
396	'') dflt=none;;
397	esac
398	rp="What extensions do you wish to include?"
399	. ./myread
400	case "$ans" in
401	?X: Use ' ' so a subsequent Configure will preserve that value.
402	none) static_ext=' ' ;;
403	*) static_ext="$ans" ;;
404	esac
405	;;
406	esac
75423307 JH	407	#
	408	# Encode is a special case. If we are building Encode as a static
	409	# extension, we need to explicitly list its subextensions as well.
	410	# For other nested extensions, this is handled automatically by
	411	# the appropriate Makefile.PL.
	412	case " $static_ext " in
	413	" Encode ") # Add the subextensions of Encode
	414	cd "$rsrc/ext"
	415	for xxx in `ls Encode/*/Makefile.PL\|awk -F/ '{print $2}'`; do
	416	static_ext="$static_ext Encode/$xxx"
	417	done
	418	cd "$tdir"
	419	;;
	420	esac
959f3c4c JH	421
	422	set X $dynamic_ext $static_ext $nonxs_ext
	423	shift
	424	extensions="$*"
	425
9d9aa0de JH	426	# Sanity check: We require an extension suitable for use with
	427	# AnyDBM_File, as well as Fcntl and IO. (Failure to have these
	428	# should show up as failures in the test suite, but it's helpful to
	429	# catch them now.) The 'extensions' list is normally sorted
	430	# alphabetically, so we need to accept either
	431	# DB_File ... Fcntl ... IO ....
	432	# or something like
	433	# Fcntl ... NDBM_File ... IO ....
1af58dcc JH	434	case " $extensions" in
	435	"_File "" Fcntl "" IO ") ;; # DB_File
	436	" Fcntl ""_File "" IO ") ;; # GDBM_File
	437	" Fcntl "" IO ""_File ") ;; # NDBM_File
3ae30915 JH	438	) echo "WARNING: Extensions DB_File or DBM_File, Fcntl, and IO not configured." >&4
	439	echo "WARNING: The Perl you are building will be quite crippled." >& 4
	440	;;
	441	esac
	442