/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2007 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.75 2008/01/02 01:01:03 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.102 2010/09/11 17:12:20 vapier Exp $
4 4
5# @ECLASS: toolchain-funcs.eclass 5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
8# @BLURB: functions to query common info about the toolchain 8# @BLURB: functions to query common info about the toolchain
70tc-getNM() { tc-getPROG NM nm "$@"; } 70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB 71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix] 72# @USAGE: [toolchain prefix]
73# @RETURN: name of the archiver indexer 73# @RETURN: name of the archiver indexer
74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getOBJCOPY
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the object copier
78tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
75# @FUNCTION: tc-getF77 79# @FUNCTION: tc-getF77
76# @USAGE: [toolchain prefix] 80# @USAGE: [toolchain prefix]
77# @RETURN: name of the Fortran 77 compiler 81# @RETURN: name of the Fortran 77 compiler
78tc-getF77() { tc-getPROG F77 f77 "$@"; } 82tc-getF77() { tc-getPROG F77 gfortran "$@"; }
79# @FUNCTION: tc-getF90 83# @FUNCTION: tc-getFC
80# @USAGE: [toolchain prefix] 84# @USAGE: [toolchain prefix]
81# @RETURN: name of the Fortran 90 compiler 85# @RETURN: name of the Fortran 90 compiler
82tc-getF90() { tc-getPROG F90 gfortran "$@"; } 86tc-getFC() { tc-getPROG FC gfortran "$@"; }
83# @FUNCTION: tc-getFORTRAN
84# @USAGE: [toolchain prefix]
85# @RETURN: name of the Fortran compiler
86tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; }
87# @FUNCTION: tc-getGCJ 87# @FUNCTION: tc-getGCJ
88# @USAGE: [toolchain prefix] 88# @USAGE: [toolchain prefix]
89# @RETURN: name of the java compiler 89# @RETURN: name of the java compiler
90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91# @FUNCTION: tc-getPKG_CONFIG
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the pkg-config tool
94tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
95# @FUNCTION: tc-getRC
96# @USAGE: [toolchain prefix]
97# @RETURN: name of the Windows resource compiler
98tc-getRC() { tc-getPROG RC windres "$@"; }
99# @FUNCTION: tc-getDLLWRAP
100# @USAGE: [toolchain prefix]
101# @RETURN: name of the Windows dllwrap utility
102tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
91 103
92# @FUNCTION: tc-getBUILD_CC 104# @FUNCTION: tc-getBUILD_CC
93# @USAGE: [toolchain prefix] 105# @USAGE: [toolchain prefix]
94# @RETURN: name of the C compiler for building binaries to run on the build machine 106# @RETURN: name of the C compiler for building binaries to run on the build machine
95tc-getBUILD_CC() { 107tc-getBUILD_CC() {
118# @DESCRIPTION: 130# @DESCRIPTION:
119# Quick way to export a bunch of compiler vars at once. 131# Quick way to export a bunch of compiler vars at once.
120tc-export() { 132tc-export() {
121 local var 133 local var
122 for var in "$@" ; do 134 for var in "$@" ; do
135 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
123 eval tc-get${var} > /dev/null 136 eval tc-get${var} > /dev/null
124 done 137 done
125} 138}
126 139
127# @FUNCTION: tc-is-cross-compiler 140# @FUNCTION: tc-is-cross-compiler
135# See if this toolchain is a softfloat based one. 148# See if this toolchain is a softfloat based one.
136# @CODE 149# @CODE
137# The possible return values: 150# The possible return values:
138# - only: the target is always softfloat (never had fpu) 151# - only: the target is always softfloat (never had fpu)
139# - yes: the target should support softfloat 152# - yes: the target should support softfloat
140# - no: the target should support hardfloat 153# - no: the target doesn't support softfloat
141# @CODE 154# @CODE
142# This allows us to react differently where packages accept 155# This allows us to react differently where packages accept
143# softfloat flags in the case where support is optional, but 156# softfloat flags in the case where support is optional, but
144# rejects softfloat flags where the target always lacks an fpu. 157# rejects softfloat flags where the target always lacks an fpu.
145tc-is-softfloat() { 158tc-is-softfloat() {
152 || echo "no" 165 || echo "no"
153 ;; 166 ;;
154 esac 167 esac
155} 168}
156 169
170# @FUNCTION: tc-is-hardfloat
171# @DESCRIPTION:
172# See if this toolchain is a hardfloat based one.
173# @CODE
174# The possible return values:
175# - yes: the target should support hardfloat
176# - no: the target doesn't support hardfloat
177tc-is-hardfloat() {
178 [[ ${CTARGET//_/-} == *-hardfloat-* ]] \
179 && echo "yes" \
180 || echo "no"
181}
182
183# @FUNCTION: tc-is-static-only
184# @DESCRIPTION:
185# Return shell true if the target does not support shared libs, shell false
186# otherwise.
187tc-is-static-only() {
188 local host=${CTARGET:-${CHOST}}
189
190 # *MiNT doesn't have shared libraries, only platform so far
191 return $([[ ${host} == *-mint* ]])
192}
193
194# @FUNCTION: tc-has-openmp
195# @USAGE: [toolchain prefix]
196# @DESCRIPTION:
197# See if the toolchain supports OpenMP.
198tc-has-openmp() {
199 local base="${T}/test-tc-openmp"
200 cat <<-EOF > "${base}.c"
201 #include <omp.h>
202 int main() {
203 int nthreads, tid, ret = 0;
204 #pragma omp parallel private(nthreads, tid)
205 {
206 tid = omp_get_thread_num();
207 nthreads = omp_get_num_threads(); ret += tid + nthreads;
208 }
209 return ret;
210 }
211 EOF
212 $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
213 local ret=$?
214 rm -f "${base}"*
215 return ${ret}
216}
217
218# @FUNCTION: tc-has-tls
219# @USAGE: [-s|-c|-l] [toolchain prefix]
220# @DESCRIPTION:
221# See if the toolchain supports thread local storage (TLS). Use -s to test the
222# compiler, -c to also test the assembler, and -l to also test the C library
223# (the default).
224tc-has-tls() {
225 local base="${T}/test-tc-tls"
226 cat <<-EOF > "${base}.c"
227 int foo(int *i) {
228 static __thread int j = 0;
229 return *i ? j : *i;
230 }
231 EOF
232 local flags
233 case $1 in
234 -s) flags="-S";;
235 -c) flags="-c";;
236 -l) ;;
237 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
238 esac
239 : ${flags:=-fPIC -shared -Wl,-z,defs}
240 [[ $1 == -* ]] && shift
241 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
242 local ret=$?
243 rm -f "${base}"*
244 return ${ret}
245}
246
247
157# Parse information from CBUILD/CHOST/CTARGET rather than 248# Parse information from CBUILD/CHOST/CTARGET rather than
158# use external variables from the profile. 249# use external variables from the profile.
159tc-ninja_magic_to_arch() { 250tc-ninja_magic_to_arch() {
160ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 251ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
161 252
171 cris*) echo cris;; 262 cris*) echo cris;;
172 hppa*) ninj parisc hppa;; 263 hppa*) ninj parisc hppa;;
173 i?86*) 264 i?86*)
174 # Starting with linux-2.6.24, the 'x86_64' and 'i386' 265 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
175 # trees have been unified into 'x86'. 266 # trees have been unified into 'x86'.
267 # FreeBSD still uses i386
176 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) ]] ; then 268 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
177 echo i386 269 echo i386
178 else 270 else
179 echo x86 271 echo x86
180 fi 272 fi
181 ;; 273 ;;
266 x86_64*) echo little;; 358 x86_64*) echo little;;
267 *) echo wtf;; 359 *) echo wtf;;
268 esac 360 esac
269} 361}
270 362
363# Internal func. The first argument is the version info to expand.
364# Query the preprocessor to improve compatibility across different
365# compilers rather than maintaining a --version flag matrix. #335943
366_gcc_fullversion() {
367 local ver="$1"; shift
368 set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"`
369 eval echo "$ver"
370}
371
271# @FUNCTION: gcc-fullversion 372# @FUNCTION: gcc-fullversion
272# @RETURN: compiler version (major.minor.micro: [3.4.6]) 373# @RETURN: compiler version (major.minor.micro: [3.4.6])
273gcc-fullversion() { 374gcc-fullversion() {
274 $(tc-getCC "$@") -dumpversion 375 _gcc_fullversion '$1.$2.$3' "$@"
275} 376}
276# @FUNCTION: gcc-version 377# @FUNCTION: gcc-version
277# @RETURN: compiler version (major.minor: [3.4].6) 378# @RETURN: compiler version (major.minor: [3.4].6)
278gcc-version() { 379gcc-version() {
279 gcc-fullversion "$@" | cut -f1,2 -d. 380 _gcc_fullversion '$1.$2' "$@"
280} 381}
281# @FUNCTION: gcc-major-version 382# @FUNCTION: gcc-major-version
282# @RETURN: major compiler version (major: [3].4.6) 383# @RETURN: major compiler version (major: [3].4.6)
283gcc-major-version() { 384gcc-major-version() {
284 gcc-version "$@" | cut -f1 -d. 385 _gcc_fullversion '$1' "$@"
285} 386}
286# @FUNCTION: gcc-minor-version 387# @FUNCTION: gcc-minor-version
287# @RETURN: minor compiler version (minor: 3.[4].6) 388# @RETURN: minor compiler version (minor: 3.[4].6)
288gcc-minor-version() { 389gcc-minor-version() {
289 gcc-version "$@" | cut -f2 -d. 390 _gcc_fullversion '$2' "$@"
290} 391}
291# @FUNCTION: gcc-micro-version 392# @FUNCTION: gcc-micro-version
292# @RETURN: micro compiler version (micro: 3.4.[6]) 393# @RETURN: micro compiler version (micro: 3.4.[6])
293gcc-micro-version() { 394gcc-micro-version() {
294 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 395 _gcc_fullversion '$3' "$@"
295} 396}
296 397
297# Returns the installation directory - internal toolchain 398# Returns the installation directory - internal toolchain
298# function for use by _gcc-specs-exists (for flag-o-matic). 399# function for use by _gcc-specs-exists (for flag-o-matic).
299_gcc-install-dir() { 400_gcc-install-dir() {
300 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ 401 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
301 awk '$1=="install:" {print $2}')" 402 awk '$1=="install:" {print $2}')"
302} 403}
303# Returns true if the indicated specs file exists - internal toolchain 404# Returns true if the indicated specs file exists - internal toolchain
304# function for use by flag-o-matic. 405# function for use by flag-o-matic.
305_gcc-specs-exists() { 406_gcc-specs-exists() {
349 450
350# Returns true if gcc sets relro 451# Returns true if gcc sets relro
351gcc-specs-relro() { 452gcc-specs-relro() {
352 local directive 453 local directive
353 directive=$(gcc-specs-directive link_command) 454 directive=$(gcc-specs-directive link_command)
354 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 455 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
355} 456}
356# Returns true if gcc sets now 457# Returns true if gcc sets now
357gcc-specs-now() { 458gcc-specs-now() {
358 local directive 459 local directive
359 directive=$(gcc-specs-directive link_command) 460 directive=$(gcc-specs-directive link_command)
360 return $([[ ${directive/\{!nonow:} != ${directive} ]]) 461 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
361} 462}
362# Returns true if gcc builds PIEs 463# Returns true if gcc builds PIEs
363gcc-specs-pie() { 464gcc-specs-pie() {
364 local directive 465 local directive
365 directive=$(gcc-specs-directive cc1) 466 directive=$(gcc-specs-directive cc1)
366 return $([[ ${directive/\{!nopie:} != ${directive} ]]) 467 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
367} 468}
368# Returns true if gcc builds with the stack protector 469# Returns true if gcc builds with the stack protector
369gcc-specs-ssp() { 470gcc-specs-ssp() {
370 local directive 471 local directive
371 directive=$(gcc-specs-directive cc1) 472 directive=$(gcc-specs-directive cc1)
372 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 473 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
373} 474}
374# Returns true if gcc upgrades fstack-protector to fstack-protector-all 475# Returns true if gcc upgrades fstack-protector to fstack-protector-all
375gcc-specs-ssp-to-all() { 476gcc-specs-ssp-to-all() {
376 local directive 477 local directive
377 directive=$(gcc-specs-directive cc1) 478 directive=$(gcc-specs-directive cc1)
378 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 479 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
480}
481# Returns true if gcc builds with fno-strict-overflow
482gcc-specs-nostrict() {
483 local directive
484 directive=$(gcc-specs-directive cc1)
485 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
379} 486}
380 487
381 488
382# @FUNCTION: gen_usr_ldscript 489# @FUNCTION: gen_usr_ldscript
383# @USAGE: <list of libs to create linker scripts for> 490# @USAGE: [-a] <list of libs to create linker scripts for>
384# @DESCRIPTION: 491# @DESCRIPTION:
385# This function generate linker scripts in /usr/lib for dynamic 492# This function generate linker scripts in /usr/lib for dynamic
386# libs in /lib. This is to fix linking problems when you have 493# libs in /lib. This is to fix linking problems when you have
387# the .so in /lib, and the .a in /usr/lib. What happens is that 494# the .so in /lib, and the .a in /usr/lib. What happens is that
388# in some cases when linking dynamic, the .a in /usr/lib is used 495# in some cases when linking dynamic, the .a in /usr/lib is used
392# 499#
393# Note that you should in general use the unversioned name of 500# Note that you should in general use the unversioned name of
394# the library (libfoo.so), as ldconfig should usually update it 501# the library (libfoo.so), as ldconfig should usually update it
395# correctly to point to the latest version of the library present. 502# correctly to point to the latest version of the library present.
396gen_usr_ldscript() { 503gen_usr_ldscript() {
397 local lib libdir=$(get_libdir) output_format="" 504 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
505 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
506
507 tc-is-static-only && return
508
398 # Just make sure it exists 509 # Just make sure it exists
399 dodir /usr/${libdir} 510 dodir /usr/${libdir}
511
512 if [[ $1 == "-a" ]] ; then
513 auto=true
514 shift
515 dodir /${libdir}
516 fi
400 517
401 # OUTPUT_FORMAT gives hints to the linker as to what binary format 518 # OUTPUT_FORMAT gives hints to the linker as to what binary format
402 # is referenced ... makes multilib saner 519 # is referenced ... makes multilib saner
403 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 520 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
404 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 521 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
405 522
406 for lib in "$@" ; do 523 for lib in "$@" ; do
407 if [[ ${USERLAND} == "Darwin" ]] ; then 524 local tlib
408 ewarn "Not creating fake dynamic library for $lib on Darwin;" 525 if ${auto} ; then
409 ewarn "making a symlink instead." 526 lib="lib${lib}${suffix}"
410 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
411 else 527 else
528 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
529 # This especially is for AIX where $(get_libname) can return ".a",
530 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
531 [[ -r ${ED}/${libdir}/${lib} ]] || continue
532 #TODO: better die here?
533 fi
534
535 case ${CTARGET:-${CHOST}} in
536 *-darwin*)
537 if ${auto} ; then
538 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
539 else
540 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
541 fi
542 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
543 tlib=${tlib##*/}
544
545 if ${auto} ; then
546 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
547 # some install_names are funky: they encode a version
548 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
549 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
550 fi
551 rm -f "${ED}"/${libdir}/${lib}
552 fi
553
554 # Mach-O files have an id, which is like a soname, it tells how
555 # another object linking against this lib should reference it.
556 # Since we moved the lib from usr/lib into lib this reference is
557 # wrong. Hence, we update it here. We don't configure with
558 # libdir=/lib because that messes up libtool files.
559 # Make sure we don't lose the specific version, so just modify the
560 # existing install_name
561 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
562 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
563 local nowrite=yes
564 fi
565 install_name_tool \
566 -id "${EPREFIX}"/${libdir}/${tlib} \
567 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
568 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
569 # Now as we don't use GNU binutils and our linker doesn't
570 # understand linker scripts, just create a symlink.
571 pushd "${ED}/usr/${libdir}" > /dev/null
572 ln -snf "../../${libdir}/${tlib}" "${lib}"
573 popd > /dev/null
574 ;;
575 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
576 if ${auto} ; then
577 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
578 # no way to retrieve soname on these platforms (?)
579 tlib=$(readlink "${ED}"/${libdir}/${lib})
580 tlib=${tlib##*/}
581 if [[ -z ${tlib} ]] ; then
582 # ok, apparently was not a symlink, don't remove it and
583 # just link to it
584 tlib=${lib}
585 else
586 rm -f "${ED}"/${libdir}/${lib}
587 fi
588 else
589 tlib=${lib}
590 fi
591
592 # we don't have GNU binutils on these platforms, so we symlink
593 # instead, which seems to work fine. Keep it relative, otherwise
594 # we break some QA checks in Portage
595 # on interix, the linker scripts would work fine in _most_
596 # situations. if a library links to such a linker script the
597 # absolute path to the correct library is inserted into the binary,
598 # which is wrong, since anybody linking _without_ libtool will miss
599 # some dependencies, since the stupid linker cannot find libraries
600 # hardcoded with absolute paths (as opposed to the loader, which
601 # seems to be able to do this).
602 # this has been seen while building shared-mime-info which needs
603 # libxml2, but links without libtool (and does not add libz to the
604 # command line by itself).
605 pushd "${ED}/usr/${libdir}" > /dev/null
606 ln -snf "../../${libdir}/${tlib}" "${lib}"
607 popd > /dev/null
608 ;;
609 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
610 if ${auto} ; then
611 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
612 [[ -z ${tlib} ]] && tlib=${lib}
613 tlib=${tlib##*/} # 'internal name' can have a path component
614 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
615 # some SONAMEs are funky: they encode a version before the .so
616 if [[ ${tlib} != ${lib}* ]] ; then
617 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
618 fi
619 [[ ${tlib} != ${lib} ]] &&
620 rm -f "${ED}"/${libdir}/${lib}
621 else
622 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
623 [[ -z ${tlib} ]] && tlib=${lib}
624 tlib=${tlib##*/} # 'internal name' can have a path component
625 fi
626 pushd "${ED}"/usr/${libdir} >/dev/null
627 ln -snf "../../${libdir}/${tlib}" "${lib}"
628 # need the internal name in usr/lib too, to be available at runtime
629 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
630 [[ ${tlib} != ${lib} ]] &&
631 ln -snf "../../${libdir}/${tlib}" "${tlib}"
632 popd >/dev/null
633 ;;
634 *)
635 if ${auto} ; then
636 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
637 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
638 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
639 # some SONAMEs are funky: they encode a version before the .so
640 if [[ ${tlib} != ${lib}* ]] ; then
641 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
642 fi
643 rm -f "${ED}"/${libdir}/${lib}
644 else
645 tlib=${lib}
646 fi
412 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 647 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
413 /* GNU ld script 648 /* GNU ld script
414 Since Gentoo has critical dynamic libraries 649 Since Gentoo has critical dynamic libraries in /lib, and the static versions
415 in /lib, and the static versions in /usr/lib, 650 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
416 we need to have a "fake" dynamic lib in /usr/lib, 651 run into linking problems. This "fake" dynamic lib is a linker script that
417 otherwise we run into linking problems. 652 redirects the linker to the real lib. And yes, this works in the cross-
653 compiling scenario as the sysroot-ed linker will prepend the real path.
418 654
419 See bug http://bugs.gentoo.org/4411 for more info. 655 See bug http://bugs.gentoo.org/4411 for more info.
420 */ 656 */
421 ${output_format} 657 ${output_format}
422 GROUP ( /${libdir}/${lib} ) 658 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
423 END_LDSCRIPT 659 END_LDSCRIPT
424 fi 660 ;;
661 esac
425 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 662 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
426 done 663 done
427} 664}

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