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1# Copyright 1999-2008 Gentoo Foundation 1# Copyright 1999-2011 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/flag-o-matic.eclass,v 1.125 2008/09/14 19:43:41 dirtyepic Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.163 2011/12/28 06:28:55 dirtyepic Exp $
4 4
5# @ECLASS: flag-o-matic.eclass 5# @ECLASS: flag-o-matic.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# toolchain@gentoo.org 7# toolchain@gentoo.org
8# @BLURB: common functions to manipulate and query toolchain flags 8# @BLURB: common functions to manipulate and query toolchain flags
9# @DESCRIPTION: 9# @DESCRIPTION:
10# This eclass contains a suite of functions to help developers sanely 10# This eclass contains a suite of functions to help developers sanely
11# and safely manage toolchain flags in their builds. 11# and safely manage toolchain flags in their builds.
12
13if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then
14___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank"
12 15
13inherit eutils toolchain-funcs multilib 16inherit eutils toolchain-funcs multilib
14 17
15################ DEPRECATED functions ################ 18################ DEPRECATED functions ################
16# The following are still present to avoid breaking existing 19# The following are still present to avoid breaking existing
27 30
28 31
29# {C,CXX,F,FC}FLAGS that we allow in strip-flags 32# {C,CXX,F,FC}FLAGS that we allow in strip-flags
30# Note: shell globs and character lists are allowed 33# Note: shell globs and character lists are allowed
31setup-allowed-flags() { 34setup-allowed-flags() {
32 if [[ -z ${ALLOWED_FLAGS} ]] ; then
33 export ALLOWED_FLAGS="-pipe" 35 ALLOWED_FLAGS="-pipe"
34 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" 36 ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune"
35 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" 37 ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all"
36 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking" 38 ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow"
37 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" 39 ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time"
38 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" 40 ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+"
39 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident" 41 ALLOWED_FLAGS+=" -fno-ident -fpermissive"
40 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -W* -w" 42 ALLOWED_FLAGS+=" -W* -w"
41 fi 43
42 # allow a bunch of flags that negate features / control ABI 44 # allow a bunch of flags that negate features / control ABI
43 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all \ 45 ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \
44 -fno-strict-aliasing -fno-bounds-checking" 46 -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \
47 -fno-omit-frame-pointer"
45 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ 48 ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \
46 -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ 49 -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \
50 -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \
47 -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ 51 -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \
48 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ 52 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \
49 -mieee -mieee-with-inexact -mschedule \ 53 -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \
50 -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ 54 -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \
51 -mflat -mno-flat -mno-faster-structs -mfaster-structs \ 55 -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \
52 -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ 56 -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \
53 -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias \ 57 -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*"
54 -msecure-plt -D*"
55 58
56 # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing 59 # 4.5
57 # NOTE: currently -Os have issues with gcc3 and K6* arch's 60 ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp"
58 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" 61 # 4.6
62 ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm"
63
64 export ALLOWED_FLAGS
59 return 0 65 return 0
60} 66}
61 67
62# inverted filters for hardened compiler. This is trying to unpick 68# inverted filters for hardened compiler. This is trying to unpick
63# the hardened compiler defaults. 69# the hardened compiler defaults.
71 -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie) 77 -fPIC|-fpic|-fPIE|-fpie|-Wl,pie|-pie)
72 gcc-specs-pie || continue 78 gcc-specs-pie || continue
73 is-flagq -nopie || append-flags -nopie;; 79 is-flagq -nopie || append-flags -nopie;;
74 -fstack-protector) 80 -fstack-protector)
75 gcc-specs-ssp || continue 81 gcc-specs-ssp || continue
76 is-flagq -fno-stack-protector || append-flags -fno-stack-protector;; 82 is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector);;
77 -fstack-protector-all) 83 -fstack-protector-all)
78 gcc-specs-ssp-to-all || continue 84 gcc-specs-ssp-to-all || continue
79 is-flagq -fno-stack-protector-all || append-flags -fno-stack-protector-all;; 85 is-flagq -fno-stack-protector-all || append-flags $(test-flags -fno-stack-protector-all);;
86 -fno-strict-overflow)
87 gcc-specs-nostrict || continue
88 is-flagq -fstrict-overflow || append-flags $(test-flags -fstrict-overflow);;
80 esac 89 esac
81 done 90 done
82} 91}
83 92
84# Remove occurrences of strings from variable given in $1 93# Remove occurrences of strings from variable given in $1
117 126
118# @FUNCTION: filter-lfs-flags 127# @FUNCTION: filter-lfs-flags
119# @DESCRIPTION: 128# @DESCRIPTION:
120# Remove flags that enable Large File Support. 129# Remove flags that enable Large File Support.
121filter-lfs-flags() { 130filter-lfs-flags() {
122 [[ -n $@ ]] && die "filter-lfs-flags takes no arguments" 131 [[ $# -ne 0 ]] && die "filter-lfs-flags takes no arguments"
132 # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html
133 # _LARGEFILE_SOURCE: enable support for new LFS funcs (ftello/etc...)
134 # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...)
135 # _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t)
123 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE 136 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
124} 137}
125 138
126# @FUNCTION: append-cppflags 139# @FUNCTION: append-cppflags
127# @USAGE: <flags> 140# @USAGE: <flags>
128# @DESCRIPTION: 141# @DESCRIPTION:
129# Add extra <flags> to the current CPPFLAGS. 142# Add extra <flags> to the current CPPFLAGS.
130append-cppflags() { 143append-cppflags() {
131 [[ -z $* ]] && return 0 144 [[ $# -eq 0 ]] && return 0
132 export CPPFLAGS="${CPPFLAGS} $*" 145 export CPPFLAGS="${CPPFLAGS} $*"
146 return 0
147}
148
149# @FUNCTION: append-cflags
150# @USAGE: <flags>
151# @DESCRIPTION:
152# Add extra <flags> to the current CFLAGS.
153append-cflags() {
154 [[ $# -eq 0 ]] && return 0
155 export CFLAGS=$(test-flags-CC ${CFLAGS} "$@")
156 return 0
157}
158
159# @FUNCTION: append-cxxflags
160# @USAGE: <flags>
161# @DESCRIPTION:
162# Add extra <flags> to the current CXXFLAGS.
163append-cxxflags() {
164 [[ $# -eq 0 ]] && return 0
165 export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS} "$@")
133 return 0 166 return 0
134} 167}
135 168
136# @FUNCTION: append-fflags 169# @FUNCTION: append-fflags
137# @USAGE: <flags> 170# @USAGE: <flags>
138# @DESCRIPTION: 171# @DESCRIPTION:
139# Add extra <flags> to the current {F,FC}FLAGS. 172# Add extra <flags> to the current {F,FC}FLAGS.
140append-fflags() { 173append-fflags() {
141 [[ -z $* ]] && return 0 174 [[ $# -eq 0 ]] && return 0
142 export FFLAGS="${FFLAGS} $*" 175 export FFLAGS=$(test-flags-F77 ${FFLAGS} "$@")
143 export FCFLAGS="${FCFLAGS} $*" 176 export FCFLAGS=$(test-flags-FC ${FCFLAGS} "$@")
144 return 0 177 return 0
145} 178}
146 179
147# @FUNCTION: append-lfs-flags 180# @FUNCTION: append-lfs-flags
148# @DESCRIPTION: 181# @DESCRIPTION:
149# Add flags that enable Large File Support. 182# Add flags that enable Large File Support.
150append-lfs-flags() { 183append-lfs-flags() {
151 [[ -n $@ ]] && die "append-lfs-flags takes no arguments" 184 [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments"
185 # see comments in filter-lfs-flags func for meaning of these
152 append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE 186 append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
153} 187}
154 188
155# @FUNCTION: append-flags 189# @FUNCTION: append-flags
156# @USAGE: <flags> 190# @USAGE: <flags>
157# @DESCRIPTION: 191# @DESCRIPTION:
158# Add extra <flags> to your current {C,CXX,F,FC}FLAGS. 192# Add extra <flags> to your current {C,CXX,F,FC}FLAGS.
159append-flags() { 193append-flags() {
160 [[ -z $* ]] && return 0 194 [[ $# -eq 0 ]] && return 0
161 export CFLAGS="${CFLAGS} $*" 195 append-cflags "$@"
162 export CXXFLAGS="${CXXFLAGS} $*" 196 append-cxxflags "$@"
163 export FFLAGS="${FFLAGS} $*" 197 append-fflags "$@"
164 export FCFLAGS="${FCFLAGS} $*"
165 return 0 198 return 0
166} 199}
167 200
168# @FUNCTION: replace-flags 201# @FUNCTION: replace-flags
169# @USAGE: <old> <new> 202# @USAGE: <old> <new>
298 local NEW_CFLAGS="" 331 local NEW_CFLAGS=""
299 local NEW_CXXFLAGS="" 332 local NEW_CXXFLAGS=""
300 local NEW_FFLAGS="" 333 local NEW_FFLAGS=""
301 local NEW_FCFLAGS="" 334 local NEW_FCFLAGS=""
302 335
303 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
304 if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then
305 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
306 fi
307
308 set -f # disable pathname expansion 336 set -f # disable pathname expansion
309 337
310 for x in ${CFLAGS}; do 338 for x in ${CFLAGS}; do
311 for y in ${ALLOWED_FLAGS}; do 339 for y in ${ALLOWED_FLAGS}; do
312 flag=${x%%=*} 340 flag=${x%%=*}
372 400
373test-flag-PROG() { 401test-flag-PROG() {
374 local comp=$1 402 local comp=$1
375 local flags="$2" 403 local flags="$2"
376 404
377 [[ -z ${comp} || -z ${flags} ]] && \ 405 [[ -z ${comp} || -z ${flags} ]] && return 1
378 return 1
379 406
407 # use -c so we can test the assembler as well
380 local PROG=$(tc-get${comp}) 408 local PROG=$(tc-get${comp})
381 ${PROG} ${flags} -S -o /dev/null -xc /dev/null \ 409 ${PROG} ${flags} -c -o /dev/null -xc /dev/null \
382 > /dev/null 2>&1 410 > /dev/null 2>&1
383} 411}
384 412
385# @FUNCTION: test-flag-CC 413# @FUNCTION: test-flag-CC
386# @USAGE: <flag> 414# @USAGE: <flag>
413 441
414 shift 442 shift
415 443
416 [[ -z ${comp} ]] && return 1 444 [[ -z ${comp} ]] && return 1
417 445
418 x=""
419 for x in "$@" ; do 446 for x in "$@" ; do
420 test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" 447 test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}"
421 done 448 done
422 449
423 echo "${flags}" 450 echo "${flags}"
454# @USAGE: <flags> 481# @USAGE: <flags>
455# @DESCRIPTION: 482# @DESCRIPTION:
456# Short-hand that should hopefully work for both C and C++ compiler, but 483# Short-hand that should hopefully work for both C and C++ compiler, but
457# its really only present due to the append-flags() abomination. 484# its really only present due to the append-flags() abomination.
458test-flags() { test-flags-CC "$@"; } 485test-flags() { test-flags-CC "$@"; }
459
460# @FUNCTION: test_flag
461# @DESCRIPTION:
462# DEPRICIATED, use test-flags()
463test_flag() {
464 ewarn "test_flag: deprecated, please use test-flags()!" >&2
465
466 test-flags-CC "$@"
467}
468 486
469# @FUNCTION: test_version_info 487# @FUNCTION: test_version_info
470# @USAGE: <version> 488# @USAGE: <version>
471# @DESCRIPTION: 489# @DESCRIPTION:
472# Returns shell true if the current C compiler version matches <version>, else returns shell false. 490# Returns shell true if the current C compiler version matches <version>, else returns shell false.
508 fi 526 fi
509 done 527 done
510 return 1 528 return 1
511} 529}
512 530
513# @FUNCTION: has_hardened 531# DEAD FUNCS. Remove by Dec 2011.
514# @DESCRIPTION: 532test_flag() { die "$0: deprecated, please use test-flags()!" ; }
515# DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs
516has_hardened() {
517 ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" >&2 533has_hardened() { die "$0: deprecated, please use gcc-specs-{relro,now}()!" ; }
518
519 test_version_info Hardened && return 0
520 # The specs file wont exist unless gcc has GCC_SPECS support
521 [[ -f ${GCC_SPECS} && ${GCC_SPECS} != ${GCC_SPECS/hardened/} ]]
522}
523
524# @FUNCTION: has_pic
525# @DESCRIPTION:
526# DEPRECATED - use gcc-specs-pie from toolchain-funcs
527# indicate whether PIC is set
528has_pic() {
529 ewarn "has_pic: deprecated, please use gcc-specs-pie()!" >&2 534has_pic() { die "$0: deprecated, please use gcc-specs-pie()!" ; }
530
531 [[ ${CFLAGS/-fPIC} != ${CFLAGS} || \
532 ${CFLAGS/-fpic} != ${CFLAGS} ]] || \
533 gcc-specs-pie
534}
535
536# @FUNCTION: has_pie
537# @DESCRIPTION:
538# DEPRECATED - use gcc-specs-pie from toolchain-funcs
539# indicate whether PIE is set
540has_pie() {
541 ewarn "has_pie: deprecated, please use gcc-specs-pie()!" >&2 535has_pie() { die "$0: deprecated, please use gcc-specs-pie()!" ; }
542
543 [[ ${CFLAGS/-fPIE} != ${CFLAGS} || \
544 ${CFLAGS/-fpie} != ${CFLAGS} ]] || \
545 gcc-specs-pie
546}
547
548# @FUNCTION: has_ssp_all
549# @DESCRIPTION:
550# DEPRECATED - use gcc-specs-ssp from toolchain-funcs
551# indicate whether code for SSP is being generated for all functions
552has_ssp_all() {
553 ewarn "has_ssp_all: deprecated, please use gcc-specs-ssp()!" >&2 536has_ssp_all() { die "$0: deprecated, please use gcc-specs-ssp()!" ; }
554
555 # note; this matches only -fstack-protector-all
556 [[ ${CFLAGS/-fstack-protector-all} != ${CFLAGS} || \
557 -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__) ]] || \
558 gcc-specs-ssp-all
559}
560
561# @FUNCTION: has_ssp
562# @DESCRIPTION:
563# DEPRECATED - use gcc-specs-ssp from toolchain-funcs
564# indicate whether code for SSP is being generated
565has_ssp() {
566 ewarn "has_ssp: deprecated, please use gcc-specs-ssp()!" >&2 537has_ssp() { die "$0: deprecated, please use gcc-specs-ssp()!" ; }
567
568 # note; this matches both -fstack-protector and -fstack-protector-all
569 [[ ${CFLAGS/-fstack-protector} != ${CFLAGS} || \
570 -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \
571 gcc-specs-ssp
572}
573 538
574# @FUNCTION: has_m64 539# @FUNCTION: has_m64
575# @DESCRIPTION: 540# @DESCRIPTION:
576# This doesn't test if the flag is accepted, it tests if the flag actually 541# This doesn't test if the flag is accepted, it tests if the flag actually
577# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works 542# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works
642 fi 607 fi
643 608
644 export CFLAGS CXXFLAGS 609 export CFLAGS CXXFLAGS
645} 610}
646 611
612# @FUNCTION: append-libs
613# @USAGE: <libs>
614# @DESCRIPTION:
615# Add extra <libs> to the current LIBS.
616append-libs() {
617 [[ $# -eq 0 ]] && return 0
618 local flag
619 for flag in "$@"; do
620 [[ ${flag} == -l* ]] && flag=${flag#-l}
621 export LIBS="${LIBS} -l${flag}"
622 done
623
624 return 0
625}
626
647# @FUNCTION: append-ldflags 627# @FUNCTION: append-ldflags
648# @USAGE: <flags> 628# @USAGE: <flags>
649# @DESCRIPTION: 629# @DESCRIPTION:
650# Add extra <flags> to the current LDFLAGS. 630# Add extra <flags> to the current LDFLAGS.
651append-ldflags() { 631append-ldflags() {
652 [[ -z $* ]] && return 0 632 [[ $# -eq 0 ]] && return 0
653 local flag 633 local flag
654 for flag in "$@"; do 634 for flag in "$@"; do
655 [[ ${flag} == -l* ]] && \ 635 [[ ${flag} == -l* ]] && \
656 ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" 636 ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS"
657 done 637 done
668 _filter-var LDFLAGS "$@" 648 _filter-var LDFLAGS "$@"
669 return 0 649 return 0
670} 650}
671 651
672# @FUNCTION: raw-ldflags 652# @FUNCTION: raw-ldflags
673# @USAGE: <flags> 653# @USAGE: [flags]
674# @DESCRIPTION: 654# @DESCRIPTION:
675# Turn C style ldflags (-Wl,-foo) into straight ldflags - the results 655# Turn C style ldflags (-Wl,-foo) into straight ldflags - the results
676# are suitable for passing directly to 'ld'; note LDFLAGS is usually passed 656# are suitable for passing directly to 'ld'; note LDFLAGS is usually passed
677# to gcc where it needs the '-Wl,'. 657# to gcc where it needs the '-Wl,'.
658#
659# If no flags are specified, then default to ${LDFLAGS}.
678raw-ldflags() { 660raw-ldflags() {
679 local x input="$@" 661 local x input="$@"
680 [[ -z ${input} ]] && input=${LDFLAGS} 662 [[ -z ${input} ]] && input=${LDFLAGS}
681 set -- 663 set --
682 for x in ${input} ; do 664 for x in ${input} ; do
684 set -- "$@" ${x//,/ } 666 set -- "$@" ${x//,/ }
685 done 667 done
686 echo "$@" 668 echo "$@"
687} 669}
688 670
689# @FUNCTION: bindnow-flags 671# @FUNCTION: no-as-needed
690# @RETURN: Returns the flags to enable "now" binding in the current selected linker. 672# @RETURN: Flag to disable asneeded behavior for use with append-ldflags.
691# @DESCRIPTION: 673no-as-needed() {
692# DEPRECATED - Gets the flags needed for "NOW" binding
693bindnow-flags() {
694 ewarn "QA: stop using the bindnow-flags function ... simply drop it from your ebuild" >&2
695
696 case $($(tc-getLD) -v 2>&1 </dev/null) in 674 case $($(tc-getLD) -v 2>&1 </dev/null) in
697 *GNU* | *'with BFD'*) # GNU ld 675 *GNU*) # GNU ld
698 echo "-Wl,-z,now" ;; 676 echo "-Wl,--no-as-needed" ;;
699 *Apple*) # Darwin ld
700 echo "-bind_at_load" ;;
701 *)
702 # Some linkers just recognize -V instead of -v
703 case $($(tc-getLD) -V 2>&1 </dev/null) in
704 *Solaris*) # Solaris accept almost the same GNU options
705 echo "-Wl,-z,now" ;;
706 esac
707 ;;
708 esac 677 esac
709} 678}
710 679
711 680fi
712# Some tests for when we screw with things and want to make
713# sure we didn't break anything
714#TESTS() {
715# CFLAGS="-a -b -c=1"
716# CXXFLAGS="-x -y -z=2"
717# LDFLAGS="-l -m -n=3"
718#
719# die() { exit 1; }
720# (is-flag 1 2 3) && die
721# (is-ldflag 1 2 3) && die
722#
723# is-flagq -l && die
724# is-ldflagq -a && die
725# is-flagq -a || die
726# is-flagq -x || die
727# is-ldflagq -n=* || die
728# is-ldflagq -n && die
729#
730# strip-unsupported-flags
731# [[ ${CFLAGS} == "-c=1" ]] || die
732# [[ ${CXXFLAGS} == "-y -z=2" ]] || die
733#
734# echo "All tests pass"
735#}
736#TESTS

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