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Revision 1.60 - (show annotations) (download)
Tue Mar 27 01:46:50 2007 UTC (7 years, 8 months ago) by vapier
Branch: MAIN
Changes since 1.59: +4 -3 lines
avoid eclass recursion

1 # Copyright 1999-2007 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/multilib.eclass,v 1.59 2007/03/27 01:34:31 vapier Exp $
4 #
5 # Maintainer: amd64@gentoo.org / toolchain@gentoo.org
6 #
7 # This eclass is for all functions pertaining to handling multilib.
8 # configurations.
9
10 ___ECLASS_RECUR_MULTILIB="yes"
11 [[ -z ${___ECLASS_RECUR_TOOLCHAIN_FUNCS} ]] && inherit toolchain-funcs
12
13 DESCRIPTION="Based on the ${ECLASS} eclass"
14
15 # has_multilib_profile:
16 # Return true if the current profile is a multilib profile and lists more than
17 # one abi in ${MULTILIB_ABIS}. You might want to use this like
18 # 'use multilib || has_multilib_profile' until all profiles utilizing the
19 # 'multilib' use flag are removed from portage
20
21 # is_final_abi:
22 # Return true if ${ABI} is the final abi to be installed (and thus we are
23 # on our last run through a src_* function.
24
25 # number_abis:
26 # echo the number of ABIs we will be installing for
27
28 # get_install_abis:
29 # Return a list of the ABIs we want to install for with
30 # the last one in the list being the default.
31
32 # get_all_abis:
33 # Return a list of the ABIs supported by this profile.
34 # the last one in the list being the default.
35
36 # get_all_libdirs:
37 # Returns a list of all the libdirs used by this profile. This includes
38 # those that might not be touched by the current ebuild and always includes
39 # "lib".
40
41 # get_libdir:
42 # Returns the libdir for the selected ABI. This is backwards compatible
43 # and simply calls get_abi_LIBDIR() on newer profiles. You should use this
44 # to determine where to install shared objects (ex: /usr/$(get_libdir))
45
46 # get_abi_var <VAR> [<ABI>]:
47 # returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
48 #
49 # get_abi_CFLAGS:
50 # get_abi_CDEFINE:
51 # get_abi_LIBDIR:
52 # Aliases for 'get_abi_var CFLAGS', etc.
53
54 # get_ml_incdir [<include dir> [<ABI>]]
55 # include dir defaults to /usr/include
56 # ABI defaults to ${ABI} or ${DEFAULT_ABI}
57 #
58 # If a multilib include dir is associated with the passed include dir, then
59 # we return it, otherwise, we just echo back the include dir. This is
60 # neccessary when a built script greps header files rather than testing them
61 # via #include (like perl) to figure out features.
62
63 # prep_ml_includes:
64 # Some includes (include/asm, glibc, etc) are ABI dependent. In this case,
65 # We can install them in different locations for each ABI and create a common
66 # header which includes the right one based on CDEFINE_${ABI}. If your
67 # package installs ABI-specific headers, just add 'prep_ml_includes' to the
68 # end of your src_install(). It takes a list of directories that include
69 # files are installed in (default is /usr/include if none are passed).
70 #
71 # Example:
72 # src_install() {
73 # ...
74 # prep_ml_includes /usr/qt/3/include
75 # }
76
77 # create_ml_includes <include dir> <symbol 1>:<dir 1> [<symbol 2>:<dir 2> ...]
78 # If you need more control than prep_ml_includes can offer (like linux-headers
79 # for the asm-* dirs, then use create_ml_includes. The firs argument is the
80 # common dir. The remaining args are of the form <symbol>:<dir> where
81 # <symbol> is what is put in the #ifdef for choosing that dir.
82 #
83 # Ideas for this code came from debian's sparc-linux headers package.
84 #
85 # Example:
86 # create_ml_includes /usr/include/asm __sparc__:/usr/include/asm-sparc __sparc64__:/usr/include/asm-sparc64
87 # create_ml_includes /usr/include/asm __i386__:/usr/include/asm-i386 __x86_64__:/usr/include/asm-x86_64
88
89 # get_libname [version]
90 # returns libname with proper suffix {.so,.dylib} and optionally supplied version
91 # for ELF/MACH-O shared objects
92 #
93 # Example:
94 # get_libname libfoo ${PV}
95 # Returns: libfoo.so.${PV} (ELF) || libfoo.${PV}.dylib (MACH)
96
97 ### END DOCUMENTATION ###
98
99 # Defaults:
100 export MULTILIB_ABIS=${MULTILIB_ABIS:-"default"}
101 export DEFAULT_ABI=${DEFAULT_ABI:-"default"}
102 export CFLAGS_default
103 export LDFLAGS_default
104 export CHOST_default=${CHOST_default:-${CHOST}}
105 export CTARGET_default=${CTARGET_default:-${CTARGET:-${CHOST_default}}}
106 export LIBDIR_default=${CONF_LIBDIR:-"lib"}
107 export CDEFINE_default="__unix__"
108 export KERNEL_ABI=${KERNEL_ABI:-${DEFAULT_ABI}}
109
110 # has_multilib_profile()
111 has_multilib_profile() {
112 [ -n "${MULTILIB_ABIS}" -a "${MULTILIB_ABIS}" != "${MULTILIB_ABIS/ /}" ]
113 }
114
115 # This function simply returns the desired lib directory. With portage
116 # 2.0.51, we now have support for installing libraries to lib32/lib64
117 # to accomidate the needs of multilib systems. It's no longer a good idea
118 # to assume all libraries will end up in lib. Replace any (sane) instances
119 # where lib is named directly with $(get_libdir) if possible.
120 #
121 # Travis Tilley <lv@gentoo.org> (24 Aug 2004)
122 #
123 # Jeremy Huddleston <eradicator@gentoo.org> (23 Dec 2004):
124 # Added support for ${ABI} and ${DEFAULT_ABI}. If they're both not set,
125 # fall back on old behavior. Any profile that has these set should also
126 # depend on a newer version of portage (not yet released) which uses these
127 # over CONF_LIBDIR in econf, dolib, etc...
128 get_libdir() {
129 local CONF_LIBDIR
130 if [ -n "${CONF_LIBDIR_OVERRIDE}" ] ; then
131 # if there is an override, we want to use that... always.
132 echo ${CONF_LIBDIR_OVERRIDE}
133 else
134 get_abi_LIBDIR
135 fi
136 }
137
138 get_multilibdir() {
139 if has_multilib_profile; then
140 eerror "get_multilibdir called, but it shouldn't be needed with the new multilib approach. Please file a bug at http://bugs.gentoo.org and assign it to eradicator@gentoo.org"
141 exit 1
142 fi
143 echo ${CONF_MULTILIBDIR:=lib32}
144 }
145
146 # Sometimes you need to override the value returned by get_libdir. A good
147 # example of this is xorg-x11, where lib32 isnt a supported configuration,
148 # and where lib64 -must- be used on amd64 (for applications that need lib
149 # to be 32bit, such as adobe acrobat). Note that this override also bypasses
150 # portage version sanity checking.
151 # get_libdir_override expects one argument, the result get_libdir should
152 # return:
153 #
154 # get_libdir_override lib64
155 #
156 # Travis Tilley <lv@gentoo.org> (31 Aug 2004)
157 get_libdir_override() {
158 if has_multilib_profile; then
159 eerror "get_libdir_override called, but it shouldn't be needed with the new multilib approach. Please file a bug at http://bugs.gentoo.org and assign it to eradicator@gentoo.org"
160 exit 1
161 fi
162 CONF_LIBDIR="$1"
163 CONF_LIBDIR_OVERRIDE="$1"
164 LIBDIR_default="$1"
165 }
166
167 # get_abi_var <VAR> [<ABI>]
168 # returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
169 #
170 # ex:
171 # CFLAGS=$(get_abi_var CFLAGS sparc32) # CFLAGS=-m32
172 #
173 # Note that the prefered method is to set CC="$(tc-getCC) $(get_abi_CFLAGS)"
174 # This will hopefully be added to portage soon...
175 #
176 # If <ABI> is not specified, ${ABI} is used.
177 # If <ABI> is not specified and ${ABI} is not defined, ${DEFAULT_ABI} is used.
178 # If <ABI> is not specified and ${ABI} and ${DEFAULT_ABI} are not defined, we return an empty string.
179 #
180 # Jeremy Huddleston <eradicator@gentoo.org>
181 get_abi_var() {
182 local flag=$1
183 local abi
184 if [ $# -gt 1 ]; then
185 abi=${2}
186 elif [ -n "${ABI}" ]; then
187 abi=${ABI}
188 elif [ -n "${DEFAULT_ABI}" ]; then
189 abi=${DEFAULT_ABI}
190 else
191 abi="default"
192 fi
193
194 local var="${flag}_${abi}"
195 echo ${!var}
196 }
197
198 get_abi_CFLAGS() { get_abi_var CFLAGS "$@"; }
199 get_abi_ASFLAGS() { get_abi_var ASFLAGS "$@"; }
200 get_abi_LDFLAGS() { get_abi_var LDFLAGS "$@"; }
201 get_abi_CHOST() { get_abi_var CHOST "$@"; }
202 get_abi_CTARGET() { get_abi_var CTARGET "$@"; }
203 get_abi_FAKE_TARGETS() { get_abi_var FAKE_TARGETS "$@"; }
204 get_abi_CDEFINE() { get_abi_var CDEFINE "$@"; }
205 get_abi_LIBDIR() { get_abi_var LIBDIR "$@"; }
206
207 # Return a list of the ABIs we want to install for with
208 # the last one in the list being the default.
209 get_install_abis() {
210 local order=""
211
212 if [[ -z ${MULTILIB_ABIS} ]] ; then
213 echo "default"
214 return 0
215 fi
216
217 if hasq multilib-pkg-force ${RESTRICT} ||
218 { hasq multilib-pkg ${FEATURES} && hasq multilib-pkg ${RESTRICT}; }; then
219 for x in ${MULTILIB_ABIS} ; do
220 if [[ ${x} != "${DEFAULT_ABI}" ]] ; then
221 hasq ${x} ${ABI_DENY} || ordera="${ordera} ${x}"
222 fi
223 done
224 hasq ${DEFAULT_ABI} ${ABI_DENY} || order="${ordera} ${DEFAULT_ABI}"
225
226 if [[ -n ${ABI_ALLOW} ]] ; then
227 local ordera=""
228 for x in ${order} ; do
229 if hasq ${x} ${ABI_ALLOW} ; then
230 ordera="${ordera} ${x}"
231 fi
232 done
233 order=${ordera}
234 fi
235 else
236 order=${DEFAULT_ABI}
237 fi
238
239 if [[ -z ${order} ]] ; then
240 die "The ABI list is empty. Are you using a proper multilib profile? Perhaps your USE flags or MULTILIB_ABIS are too restrictive for this package."
241 fi
242
243 echo ${order}
244 return 0
245 }
246
247 # Return a list of the ABIs supported by this profile.
248 # the last one in the list being the default.
249 get_all_abis() {
250 local order=""
251
252 if [[ -z ${MULTILIB_ABIS} ]] ; then
253 echo "default"
254 return 0
255 fi
256
257 for x in ${MULTILIB_ABIS}; do
258 if [[ ${x} != ${DEFAULT_ABI} ]] ; then
259 order="${order:+${order} }${x}"
260 fi
261 done
262 order="${order:+${order} }${DEFAULT_ABI}"
263
264 echo ${order}
265 return 0
266 }
267
268 # get_all_libdirs()
269 # Returns a list of all the libdirs used by this profile. This includes
270 # those that might not be touched by the current ebuild.
271 get_all_libdirs() {
272 local libdirs="lib"
273 local abi
274 local dir
275
276 for abi in ${MULTILIB_ABIS}; do
277 [ "$(get_abi_LIBDIR ${abi})" != "lib" ] && libdirs="${libdirs} $(get_abi_LIBDIR ${abi})"
278 done
279
280 echo "${libdirs}"
281 }
282
283 # Return true if ${ABI} is the last ABI on our list (or if we're not
284 # using the new multilib configuration. This can be used to determine
285 # if we're in the last (or only) run through src_{unpack,compile,install}
286 is_final_abi() {
287 has_multilib_profile || return 0
288 local ALL_ABIS=$(get_install_abis)
289 local LAST_ABI=${ALL_ABIS/* /}
290 [[ ${LAST_ABI} == ${ABI} ]]
291 }
292
293 # echo the number of ABIs we will be installing for
294 number_abis() {
295 get_install_abis | wc -w
296 }
297
298 # get_ml_incdir [<include dir> [<ABI>]]
299 # include dir defaults to /usr/include
300 # ABI defaults to ${ABI} or ${DEFAULT_ABI}
301 get_ml_incdir() {
302 local dir=/usr/include
303
304 if [[ $# -gt 0 ]]; then
305 incdir=$1
306 shift
307 fi
308
309 if [[ -z "${MULTILIB_ABIS}" ]]; then
310 echo ${incdir}
311 return 0
312 fi
313
314 local abi=${ABI-${DEFAULT_ABI}}
315 if [[ $# -gt 0 ]]; then
316 abi=$1
317 shift
318 fi
319
320 if [[ -d "${dir}/gentoo-multilib/${abi}" ]]; then
321 echo ${dir}/gentoo-multilib/${abi}
322 else
323 echo ${dir}
324 fi
325 }
326
327 # prep_ml_includes:
328 #
329 # Some includes (include/asm, glibc, etc) are ABI dependent. In this case,
330 # We can install them in different locations for each ABI and create a common
331 # header which includes the right one based on CDEFINE_${ABI}. If your
332 # package installs ABI-specific headers, just add 'prep_ml_includes' to the
333 # end of your src_install(). It takes a list of directories that include
334 # files are installed in (default is /usr/include if none are passed).
335 #
336 # Example:
337 # src_install() {
338 # ...
339 # prep_ml_includes /usr/qt/3/include
340 # }
341
342 prep_ml_includes() {
343 if [[ $(number_abis) -gt 1 ]] ; then
344 local dir
345 local dirs
346 local base
347
348 if [[ $# -eq 0 ]] ; then
349 dirs=/usr/include
350 else
351 dirs="$@"
352 fi
353
354 for dir in ${dirs} ; do
355 base=${T}/gentoo-multilib/${dir}/gentoo-multilib
356 mkdir -p "${base}"
357 [[ -d ${base}/${ABI} ]] && rm -rf "${base}/${ABI}"
358 mv "${D}/${dir}" "${base}/${ABI}"
359 done
360
361 if is_final_abi; then
362 base=${T}/gentoo-multilib
363 pushd "${base}"
364 find . | tar -c -T - -f - | tar -x --no-same-owner -f - -C ${D}
365 popd
366
367 # This 'set' stuff is required by mips profiles to properly pass
368 # CDEFINE's (which have spaces) to sub-functions
369 set --
370 for dir in ${dirs} ; do
371 set -- "$@" "${dir}"
372 local abi
373 for abi in $(get_install_abis); do
374 set -- "$@" "$(get_abi_CDEFINE ${abi}):${dir}/gentoo-multilib/${abi}"
375 done
376 create_ml_includes "$@"
377 done
378 fi
379 fi
380 }
381
382 # If you need more control than prep_ml_includes can offer (like linux-headers
383 # for the asm-* dirs, then use create_ml_includes. The firs argument is the
384 # common dir. The remaining args are of the form <symbol>:<dir> where
385 # <symbol> is what is put in the #ifdef for choosing that dir.
386 #
387 # Ideas for this code came from debian's sparc-linux headers package.
388 #
389 # Example:
390 # create_ml_includes /usr/include/asm __sparc__:/usr/include/asm-sparc __sparc64__:/usr/include/asm-sparc64
391 # create_ml_includes /usr/include/asm __i386__:/usr/include/asm-i386 __x86_64__:/usr/include/asm-x86_64
392 #
393 # Warning: Be careful with the ordering here. The default ABI has to be the
394 # last, because it is always defined (by GCC)
395 create_ml_includes() {
396 local dest=$1
397 shift
398 local basedirs=$(create_ml_includes-listdirs "$@")
399
400 create_ml_includes-makedestdirs ${dest} ${basedirs}
401
402 local file
403 for file in $(create_ml_includes-allfiles ${basedirs}) ; do
404 #local name=$(echo ${file} | tr '[:lower:]' '[:upper:]' | sed 's:[^[:upper:]]:_:g')
405 (
406 echo "/* Autogenerated by create_ml_includes() in multilib.eclass */"
407
408 local dir
409 for dir in ${basedirs}; do
410 if [[ -f ${D}/${dir}/${file} ]] ; then
411 echo ""
412 local sym=$(create_ml_includes-sym_for_dir ${dir} "$@")
413 if [[ ${sym/=} != "${sym}" ]] ; then
414 echo "#if ${sym}"
415 elif [[ ${sym::1} == "!" ]] ; then
416 echo "#ifndef ${sym:1}"
417 else
418 echo "#ifdef ${sym}"
419 fi
420 echo "# include <$(create_ml_includes-absolute ${dir}/${file})>"
421 echo "#endif /* ${sym} */"
422 fi
423 done
424
425 #echo "#endif /* __CREATE_ML_INCLUDES_STUB_${name}__ */"
426 ) > "${D}/${dest}/${file}"
427 done
428 }
429
430 # Helper function for create_ml_includes
431 create_ml_includes-absolute() {
432 local dst="$(create_ml_includes-tidy_path $1)"
433
434 dst=(${dst//\// })
435
436 local i
437 for ((i=0; i<${#dst[*]}; i++)); do
438 [ "${dst[i]}" == "include" ] && break
439 done
440
441 local strip_upto=$i
442
443 for ((i=strip_upto+1; i<${#dst[*]}-1; i++)); do
444 echo -n ${dst[i]}/
445 done
446
447 echo -n ${dst[i]}
448 }
449
450 # Helper function for create_ml_includes
451 create_ml_includes-tidy_path() {
452 local removed=$1
453
454 if [ -n "${removed}" ]; then
455 # Remove multiple slashes
456 while [ "${removed}" != "${removed/\/\//\/}" ]; do
457 removed=${removed/\/\//\/}
458 done
459
460 # Remove . directories
461 while [ "${removed}" != "${removed//\/.\//\/}" ]; do
462 removed=${removed//\/.\//\/}
463 done
464 [ "${removed##*/}" = "." ] && removed=${removed%/*}
465
466 # Removed .. directories
467 while [ "${removed}" != "${removed//\/..\/}" ]; do
468 local p1="${removed%%\/..\/*}"
469 local p2="${removed#*\/..\/}"
470
471 removed="${p1%\/*}/${p2}"
472 done
473
474 # Remove trailing ..
475 [ "${removed##*/}" = ".." ] && removed=${removed%/*/*}
476
477 # Remove trailing /
478 [ "${removed##*/}" = "" ] && removed=${removed%/*}
479
480 echo ${removed}
481 fi
482 }
483
484 # Helper function for create_ml_includes
485 create_ml_includes-listdirs() {
486 local dirs
487 local data
488 for data in "$@"; do
489 dirs="${dirs} ${data/*:/}"
490 done
491 echo ${dirs:1}
492 }
493
494 # Helper function for create_ml_includes
495 create_ml_includes-makedestdirs() {
496 local dest=$1
497 shift
498 local basedirs=$@
499
500 dodir ${dest}
501
502 local basedir
503 for basedir in ${basedirs}; do
504 local dir
505 for dir in $(find ${D}/${basedir} -type d); do
506 dodir ${dest}/${dir/${D}\/${basedir}/}
507 done
508 done
509 }
510
511 # Helper function for create_ml_includes
512 create_ml_includes-allfiles() {
513 local basedir file
514 for basedir in "$@" ; do
515 for file in $(find "${D}"/${basedir} -type f); do
516 echo ${file/${D}\/${basedir}\//}
517 done
518 done | sort | uniq
519 }
520
521 # Helper function for create_ml_includes
522 create_ml_includes-sym_for_dir() {
523 local dir=$1
524 shift
525 local data
526 for data in "$@"; do
527 if [[ ${data} == *:${dir} ]] ; then
528 echo ${data/:*/}
529 return 0
530 fi
531 done
532 echo "Shouldn't be here -- create_ml_includes-sym_for_dir $1 $@"
533 # exit because we'll likely be called from a subshell
534 exit 1
535 }
536
537 get_libname() {
538 local libname
539 local ver=$1
540 case ${CHOST} in
541 *-darwin*) libname="dylib";;
542 *) libname="so";;
543 esac
544
545 if [[ -z $@ ]] ; then
546 echo ".${libname}"
547 else
548 for ver in "$@" ; do
549 case ${CHOST} in
550 *-darwin*) echo ".${ver}.${libname}";;
551 *) echo ".${libname}.${ver}";;
552 esac
553 done
554 fi
555 }
556
557 # This is for the toolchain to setup profile variables when pulling in
558 # a crosscompiler (and thus they aren't set in the profile)
559 multilib_env() {
560 local CTARGET=${1:-${CTARGET}}
561
562 case ${CTARGET} in
563 x86_64*)
564 export CFLAGS_x86=${CFLAGS_x86--m32}
565 export CHOST_x86=${CTARGET/x86_64/i686}
566 export CTARGET_x86=${CHOST_x86}
567 export CDEFINE_x86="__i386__"
568 export LIBDIR_x86="lib"
569
570 export CFLAGS_amd64=${CFLAGS_amd64--m64}
571 export CHOST_amd64=${CTARGET}
572 export CTARGET_amd64=${CHOST_amd64}
573 export CDEFINE_amd64="__x86_64__"
574 export LIBDIR_amd64="lib64"
575
576 export MULTILIB_ABIS="amd64 x86"
577 export DEFAULT_ABI="amd64"
578 ;;
579 mips64*)
580 export CFLAGS_o32=${CFLAGS_o32--mabi=32}
581 export CHOST_o32=${CTARGET/mips64/mips}
582 export CTARGET_o32=${CHOST_o32}
583 export CDEFINE_o32="_MIPS_SIM == _ABIO32"
584 export LIBDIR_o32="lib"
585
586 export CFLAGS_n32=${CFLAGS_n32--mabi=n32}
587 export CHOST_n32=${CTARGET}
588 export CTARGET_n32=${CHOST_n32}
589 export CDEFINE_n32="_MIPS_SIM == _ABIN32"
590 export LIBDIR_n32="lib32"
591
592 export CFLAGS_n64=${CFLAGS_n64--mabi=64}
593 export CHOST_n64=${CTARGET}
594 export CTARGET_n64=${CHOST_n64}
595 export CDEFINE_n64="_MIPS_SIM == _ABI64"
596 export LIBDIR_n64="lib64"
597
598 export MULTILIB_ABIS="n64 n32 o32"
599 export DEFAULT_ABI="n32"
600 ;;
601 powerpc64*)
602 export CFLAGS_ppc=${CFLAGS_ppc--m32}
603 export CHOST_ppc=${CTARGET/powerpc64/powerpc}
604 export CTARGET_ppc=${CHOST_ppc}
605 export CDEFINE_ppc="!__powerpc64__"
606 export LIBDIR_ppc="lib"
607
608 export CFLAGS_ppc64=${CFLAGS_ppc64--m64}
609 export CHOST_ppc64=${CTARGET}
610 export CTARGET_ppc64=${CHOST_ppc64}
611 export CDEFINE_ppc64="__powerpc64__"
612 export LIBDIR_ppc64="lib64"
613
614 export MULTILIB_ABIS="ppc64 ppc"
615 export DEFAULT_ABI="ppc64"
616 ;;
617 s390x*)
618 export CFLAGS_s390=${CFLAGS_s390--m31} # the 31 is not a typo
619 export CHOST_s390=${CTARGET/s390x/s390}
620 export CTARGET_s390=${CHOST_s390}
621 export CDEFINE_s390="!__s390x__"
622 export LIBDIR_s390="lib"
623
624 export CFLAGS_s390x=${CFLAGS_s390x--m64}
625 export CHOST_s390x=${CTARGET}
626 export CTARGET_s390x=${CHOST_s390x}
627 export CDEFINE_s390x="__s390x__"
628 export LIBDIR_s390x="lib64"
629
630 export MULTILIB_ABIS="s390x s390"
631 export DEFAULT_ABI="s390x"
632 ;;
633 sparc64*)
634 export CFLAGS_sparc32=${CFLAGS_sparc32--m32}
635 export CHOST_sparc32=${CTARGET/sparc64/sparc}
636 export CTARGET_sparc32=${CHOST_sparc32}
637 export CDEFINE_sparc32="!__arch64__"
638 export LIBDIR_sparc32="lib"
639
640 export CFLAGS_sparc64=${CFLAGS_sparc64--m64}
641 export CHOST_sparc64=${CTARGET}
642 export CTARGET_sparc64=${CHOST_sparc64}
643 export CDEFINE_sparc64="__arch64__"
644 export LIBDIR_sparc64="lib64"
645
646 export MULTILIB_ABIS="sparc64 sparc32"
647 export DEFAULT_ABI="sparc64"
648 ;;
649 *)
650 export MULTILIB_ABIS="default"
651 export DEFAULT_ABI="default"
652 ;;
653 esac
654 }
655
656 # Hide multilib details here for packages which are forced to be compiled for a
657 # specific ABI when run on another ABI (like x86-specific packages on amd64)
658 multilib_toolchain_setup() {
659 export ABI=$1
660
661 if has_version app-admin/eselect-compiler ; then
662 # Binutils doesn't have wrappers for ld and as (yet). Eventually it
663 # will, and all this can just be handled with CHOST.
664 export LD="ld $(get_abi_LDFLAGS $1)"
665 export AS="as $(get_abi_ASFLAGS $1)"
666
667 export CHOST=$(get_abi_CHOST $1)
668 export CBUILD=$(get_abi_CHOST $1)
669 else
670 tc-export CC
671 fi
672 }

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