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1# Copyright 1999-2011 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 1.159 2011/12/07 06:42:40 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.170 2012/05/26 02:55:02 vapier 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 12
13if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then
14___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank"
15
13inherit eutils toolchain-funcs multilib 16inherit eutils toolchain-funcs multilib
14 17
15################ DEPRECATED functions ################ 18# Return all the flag variables that our high level funcs operate on.
16# The following are still present to avoid breaking existing 19all-flag-vars() {
17# code more than necessary; however they are deprecated. Please 20 echo {C,CPP,CXX,CCAS,F,FC,LD}FLAGS
18# use gcc-specs-* from toolchain-funcs.eclass instead, if you 21}
19# need to know which hardened techs are active in the compiler.
20# See bug #100974
21#
22# has_hardened
23# has_pie
24# has_pic
25# has_ssp_all
26# has_ssp
27
28 22
29# {C,CXX,F,FC}FLAGS that we allow in strip-flags 23# {C,CXX,F,FC}FLAGS that we allow in strip-flags
30# Note: shell globs and character lists are allowed 24# Note: shell globs and character lists are allowed
31setup-allowed-flags() { 25setup-allowed-flags() {
32 if [[ -z ${ALLOWED_FLAGS} ]] ; then
33 export ALLOWED_FLAGS="-pipe" 26 ALLOWED_FLAGS="-pipe"
34 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" 27 ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune"
35 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" 28 ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all"
36 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-strict-overflow" 29 ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow"
37 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" 30 ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time"
38 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" 31 ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+"
39 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident -fpermissive" 32 ALLOWED_FLAGS+=" -fno-ident -fpermissive"
40 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -W* -w" 33 ALLOWED_FLAGS+=" -W* -w"
41 fi 34
42 # allow a bunch of flags that negate features / control ABI 35 # allow a bunch of flags that negate features / control ABI
43 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all \ 36 ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \
44 -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow -fno-omit-frame-pointer" 37 -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \
38 -fno-omit-frame-pointer"
45 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ 39 ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \
46 -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 \ 40 -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \
47 -mno-sse4.2 -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow \ 41 -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \
48 -mno-popcnt -mno-abm \
49 -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ 42 -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \
50 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ 43 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \
51 -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ 44 -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \
52 -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ 45 -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \
53 -mflat -mno-flat -mno-faster-structs -mfaster-structs \ 46 -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \
54 -m32 -m64 -mx32 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ 47 -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \
55 -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias \ 48 -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*"
56 -msecure-plt -m*-toc -D* -U*"
57 49
58 # 4.5 50 # 4.5
59 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fma4 -mno-movbe -mno-xop -mno-lwp" 51 ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp"
60 # 4.6 52 # 4.6
61 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fsgsbase -mno-rdrnd -mno-f16c \ 53 ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm"
62 -mno-bmi -mno-tbm"
63 54
64 # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing 55 export ALLOWED_FLAGS
65 # NOTE: currently -Os have issues with gcc3 and K6* arch's
66 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks"
67 return 0 56 return 0
68} 57}
69 58
70# inverted filters for hardened compiler. This is trying to unpick 59# inverted filters for hardened compiler. This is trying to unpick
71# the hardened compiler defaults. 60# the hardened compiler defaults.
94 83
95# Remove occurrences of strings from variable given in $1 84# Remove occurrences of strings from variable given in $1
96# Strings removed are matched as globs, so for example 85# Strings removed are matched as globs, so for example
97# '-O*' would remove -O1, -O2 etc. 86# '-O*' would remove -O1, -O2 etc.
98_filter-var() { 87_filter-var() {
99 local f x VAR VAL 88 local f x var=$1 new=()
100 declare -a new
101
102 VAR=$1
103 shift 89 shift
104 eval VAL=\${${VAR}} 90
105 for f in ${VAL}; do 91 for f in ${!var} ; do
106 for x in "$@"; do 92 for x in "$@" ; do
107 # Note this should work with globs like -O* 93 # Note this should work with globs like -O*
108 [[ ${f} == ${x} ]] && continue 2 94 [[ ${f} == ${x} ]] && continue 2
109 done 95 done
110 eval new\[\${\#new\[@]}]=\${f} 96 new+=( "${f}" )
111 done 97 done
112 eval export ${VAR}=\${new\[*]} 98 eval export ${var}=\""${new[*]}"\"
113} 99}
114 100
115# @FUNCTION: filter-flags 101# @FUNCTION: filter-flags
116# @USAGE: <flags> 102# @USAGE: <flags>
117# @DESCRIPTION: 103# @DESCRIPTION:
118# Remove particular <flags> from {C,CPP,CXX,F,FC}FLAGS. Accepts shell globs. 104# Remove particular <flags> from {C,CPP,CXX,CCAS,F,FC,LD}FLAGS. Accepts shell globs.
119filter-flags() { 105filter-flags() {
120 _filter-hardened "$@" 106 _filter-hardened "$@"
107 local v
108 for v in $(all-flag-vars) ; do
121 _filter-var CFLAGS "$@" 109 _filter-var ${v} "$@"
122 _filter-var CPPFLAGS "$@" 110 done
123 _filter-var CXXFLAGS "$@"
124 _filter-var FFLAGS "$@"
125 _filter-var FCFLAGS "$@"
126 return 0 111 return 0
127} 112}
128 113
129# @FUNCTION: filter-lfs-flags 114# @FUNCTION: filter-lfs-flags
130# @DESCRIPTION: 115# @DESCRIPTION:
192# @USAGE: <flags> 177# @USAGE: <flags>
193# @DESCRIPTION: 178# @DESCRIPTION:
194# Add extra <flags> to your current {C,CXX,F,FC}FLAGS. 179# Add extra <flags> to your current {C,CXX,F,FC}FLAGS.
195append-flags() { 180append-flags() {
196 [[ $# -eq 0 ]] && return 0 181 [[ $# -eq 0 ]] && return 0
182 case " $* " in
183 *' '-[DIU]*) eqawarn 'please use append-cppflags for preprocessor flags' ;;
184 *' '-L*) eqawarn 'please use append-ldflags for linker flags' ;;
185 esac
197 append-cflags "$@" 186 append-cflags "$@"
198 append-cxxflags "$@" 187 append-cxxflags "$@"
199 append-fflags "$@" 188 append-fflags "$@"
200 return 0 189 return 0
201} 190}
203# @FUNCTION: replace-flags 192# @FUNCTION: replace-flags
204# @USAGE: <old> <new> 193# @USAGE: <old> <new>
205# @DESCRIPTION: 194# @DESCRIPTION:
206# Replace the <old> flag with <new>. Accepts shell globs for <old>. 195# Replace the <old> flag with <new>. Accepts shell globs for <old>.
207replace-flags() { 196replace-flags() {
208 [[ $# != 2 ]] \
209 && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ 197 [[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>"
210 && die "replace-flags takes 2 arguments, not $#"
211 198
212 local f fset 199 local f var new
213 declare -a new_CFLAGS new_CXXFLAGS new_FFLAGS new_FCFLAGS 200 for var in $(all-flag-vars) ; do
214
215 for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do
216 # Looping over the flags instead of using a global 201 # Looping over the flags instead of using a global
217 # substitution ensures that we're working with flag atoms. 202 # substitution ensures that we're working with flag atoms.
218 # Otherwise globs like -O* have the potential to wipe out the 203 # Otherwise globs like -O* have the potential to wipe out the
219 # list of flags. 204 # list of flags.
205 new=()
220 for f in ${!fset}; do 206 for f in ${!var} ; do
221 # Note this should work with globs like -O* 207 # Note this should work with globs like -O*
222 [[ ${f} == ${1} ]] && f=${2} 208 [[ ${f} == ${1} ]] && f=${2}
223 eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} 209 new+=( "${f}" )
224 done 210 done
225 eval export ${fset}=\${new_${fset}\[*]} 211 eval export ${var}=\""${new[*]}"\"
226 done 212 done
227 213
228 return 0 214 return 0
229} 215}
230 216
258# @USAGE: <flag> 244# @USAGE: <flag>
259# @DESCRIPTION: 245# @DESCRIPTION:
260# Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. 246# Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs.
261is-flagq() { 247is-flagq() {
262 [[ -n $2 ]] && die "Usage: is-flag <flag>" 248 [[ -n $2 ]] && die "Usage: is-flag <flag>"
263 _is_flagq CFLAGS $1 || _is_flagq CXXFLAGS $1 || _is_flagq FFLAGS $1 || _is_flagq FCFLAGS $1 249
250 local var
251 for var in $(all-flag-vars) ; do
252 _is_flagq ${var} "$1" && return 0
253 done
254 return 1
264} 255}
265 256
266# @FUNCTION: is-flag 257# @FUNCTION: is-flag
267# @USAGE: <flag> 258# @USAGE: <flag>
268# @DESCRIPTION: 259# @DESCRIPTION:
324 315
325# @FUNCTION: strip-flags 316# @FUNCTION: strip-flags
326# @DESCRIPTION: 317# @DESCRIPTION:
327# Strip C[XX]FLAGS of everything except known good/safe flags. 318# Strip C[XX]FLAGS of everything except known good/safe flags.
328strip-flags() { 319strip-flags() {
329 local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS 320 local x y var
330 321
331 setup-allowed-flags 322 setup-allowed-flags
332 323
333 local NEW_CFLAGS=""
334 local NEW_CXXFLAGS=""
335 local NEW_FFLAGS=""
336 local NEW_FCFLAGS=""
337
338 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
339 if has "~$(tc-arch)" ${ACCEPT_KEYWORDS} ; then
340 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
341 fi
342
343 set -f # disable pathname expansion 324 set -f # disable pathname expansion
344 325
345 for x in ${CFLAGS}; do 326 for var in $(all-flag-vars) ; do
327 local new=()
328
329 for x in ${!var} ; do
330 local flag=${x%%=*}
346 for y in ${ALLOWED_FLAGS}; do 331 for y in ${ALLOWED_FLAGS} ; do
347 flag=${x%%=*}
348 if [ "${flag%%${y}}" = "" ] ; then 332 if [[ -z ${flag%%${y}} ]] ; then
349 NEW_CFLAGS="${NEW_CFLAGS} ${x}" 333 new+=( "${x}" )
350 break 334 break
351 fi 335 fi
352 done 336 done
353 done 337 done
354 338
355 for x in ${CXXFLAGS}; do
356 for y in ${ALLOWED_FLAGS}; do
357 flag=${x%%=*}
358 if [ "${flag%%${y}}" = "" ] ; then
359 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
360 break
361 fi
362 done
363 done
364
365 for x in ${FFLAGS}; do
366 for y in ${ALLOWED_FLAGS}; do
367 flag=${x%%=*}
368 if [ "${flag%%${y}}" = "" ] ; then
369 NEW_FFLAGS="${NEW_FFLAGS} ${x}"
370 break
371 fi
372 done
373 done
374
375 for x in ${FCFLAGS}; do
376 for y in ${ALLOWED_FLAGS}; do
377 flag=${x%%=*}
378 if [ "${flag%%${y}}" = "" ] ; then
379 NEW_FCFLAGS="${NEW_FCFLAGS} ${x}"
380 break
381 fi
382 done
383 done
384
385 # In case we filtered out all optimization flags fallback to -O2 339 # In case we filtered out all optimization flags fallback to -O2
386 if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then 340 if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*" ; then
387 NEW_CFLAGS="${NEW_CFLAGS} -O2" 341 new+=( -O2 )
388 fi 342 fi
389 if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then 343
390 NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" 344 eval export ${var}=\""${new[*]}"\"
391 fi 345 done
392 if [ "${FFLAGS/-O}" != "${FFLAGS}" -a "${NEW_FFLAGS/-O}" = "${NEW_FFLAGS}" ]; then
393 NEW_FFLAGS="${NEW_FFLAGS} -O2"
394 fi
395 if [ "${FCFLAGS/-O}" != "${FCFLAGS}" -a "${NEW_FCFLAGS/-O}" = "${NEW_FCFLAGS}" ]; then
396 NEW_FCFLAGS="${NEW_FCFLAGS} -O2"
397 fi
398 346
399 set +f # re-enable pathname expansion 347 set +f # re-enable pathname expansion
400 348
401 export CFLAGS="${NEW_CFLAGS}"
402 export CXXFLAGS="${NEW_CXXFLAGS}"
403 export FFLAGS="${NEW_FFLAGS}"
404 export FCFLAGS="${NEW_FCFLAGS}"
405 return 0 349 return 0
406} 350}
407 351
408test-flag-PROG() { 352test-flag-PROG() {
409 local comp=$1 353 local comp=$1
410 local flags="$2" 354 local flag=$2
411 355
412 [[ -z ${comp} || -z ${flags} ]] && return 1 356 [[ -z ${comp} || -z ${flag} ]] && return 1
413 357
414 # use -c so we can test the assembler as well 358 # use -c so we can test the assembler as well
415 local PROG=$(tc-get${comp}) 359 local PROG=$(tc-get${comp})
416 ${PROG} ${flags} -c -o /dev/null -xc /dev/null \ 360 ${PROG} "${flag}" -c -o /dev/null -xc /dev/null \
417 > /dev/null 2>&1 361 > /dev/null 2>&1
418} 362}
419 363
420# @FUNCTION: test-flag-CC 364# @FUNCTION: test-flag-CC
421# @USAGE: <flag> 365# @USAGE: <flag>
517# @FUNCTION: get-flag 461# @FUNCTION: get-flag
518# @USAGE: <flag> 462# @USAGE: <flag>
519# @DESCRIPTION: 463# @DESCRIPTION:
520# Find and echo the value for a particular flag. Accepts shell globs. 464# Find and echo the value for a particular flag. Accepts shell globs.
521get-flag() { 465get-flag() {
522 local f findflag="$1" 466 local f var findflag="$1"
523 467
524 # this code looks a little flaky but seems to work for 468 # this code looks a little flaky but seems to work for
525 # everything we want ... 469 # everything we want ...
526 # for example, if CFLAGS="-march=i686": 470 # for example, if CFLAGS="-march=i686":
527 # `get-flag -march` == "-march=i686" 471 # `get-flag -march` == "-march=i686"
528 # `get-flag march` == "i686" 472 # `get-flag march` == "i686"
529 for f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do 473 for var in $(all-flag-vars) ; do
474 for f in ${!var} ; do
530 if [ "${f/${findflag}}" != "${f}" ] ; then 475 if [ "${f/${findflag}}" != "${f}" ] ; then
531 printf "%s\n" "${f/-${findflag}=}" 476 printf "%s\n" "${f/-${findflag}=}"
532 return 0 477 return 0
533 fi 478 fi
479 done
534 done 480 done
535 return 1 481 return 1
536} 482}
537
538# DEAD FUNCS. Remove by Dec 2011.
539test_flag() { die "$0: deprecated, please use test-flags()!" ; }
540has_hardened() { die "$0: deprecated, please use gcc-specs-{relro,now}()!" ; }
541has_pic() { die "$0: deprecated, please use gcc-specs-pie()!" ; }
542has_pie() { die "$0: deprecated, please use gcc-specs-pie()!" ; }
543has_ssp_all() { die "$0: deprecated, please use gcc-specs-ssp()!" ; }
544has_ssp() { die "$0: deprecated, please use gcc-specs-ssp()!" ; }
545 483
546# @FUNCTION: has_m64 484# @FUNCTION: has_m64
547# @DESCRIPTION: 485# @DESCRIPTION:
548# This doesn't test if the flag is accepted, it tests if the flag actually 486# This doesn't test if the flag is accepted, it tests if the flag actually
549# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works 487# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works
550# return code is 0, else the return code is 1. 488# return code is 0, else the return code is 1.
551has_m64() { 489has_m64() {
490 eqawarn "${FUNCNAME}: don't use this anymore"
491
552 # this doesnt test if the flag is accepted, it tests if the flag 492 # this doesnt test if the flag is accepted, it tests if the flag
553 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! 493 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
554 # please dont replace this function with test_flag in some future 494 # please dont replace this function with test_flag in some future
555 # clean-up! 495 # clean-up!
556 496
562 rm -f "${temp}".c 502 rm -f "${temp}".c
563 [[ ${ret} != 1 ]] && return 0 503 [[ ${ret} != 1 ]] && return 0
564 return 1 504 return 1
565} 505}
566 506
567# @FUNCTION: has_m32
568# @DESCRIPTION:
569# This doesn't test if the flag is accepted, it tests if the flag actually
570# WORKS. Non-mulilib gcc will take both -m32 and -64. If the flag works return
571# code is 0, else return code is 1.
572has_m32() { 507has_m32() {
573 # this doesnt test if the flag is accepted, it tests if the flag 508 die "${FUNCNAME}: don't use this anymore"
574 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
575 # please dont replace this function with test_flag in some future
576 # clean-up!
577
578 [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0
579
580 local temp=$(emktemp)
581 echo "int main() { return(0); }" > "${temp}".c
582 MY_CC=$(tc-getCC)
583 ${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1
584 local ret=$?
585 rm -f "${temp}".c
586 [[ ${ret} != 1 ]] && return 0
587 return 1
588} 509}
589 510
590# @FUNCTION: replace-sparc64-flags 511# @FUNCTION: replace-sparc64-flags
591# @DESCRIPTION: 512# @DESCRIPTION:
592# Sets mcpu to v8 and uses the original value as mtune if none specified. 513# Sets mcpu to v8 and uses the original value as mtune if none specified.
682 *GNU*) # GNU ld 603 *GNU*) # GNU ld
683 echo "-Wl,--no-as-needed" ;; 604 echo "-Wl,--no-as-needed" ;;
684 esac 605 esac
685} 606}
686 607
687# Some tests for when we screw with things and want to make 608fi
688# sure we didn't break anything
689#TESTS() {
690# CFLAGS="-a -b -c=1"
691# CXXFLAGS="-x -y -z=2"
692# LDFLAGS="-l -m -n=3"
693#
694# die() { exit 1; }
695# (is-flag 1 2 3) && die
696# (is-ldflag 1 2 3) && die
697#
698# is-flagq -l && die
699# is-ldflagq -a && die
700# is-flagq -a || die
701# is-flagq -x || die
702# is-ldflagq -n=* || die
703# is-ldflagq -n && die
704#
705# strip-unsupported-flags
706# [[ ${CFLAGS} == "-c=1" ]] || die
707# [[ ${CXXFLAGS} == "-y -z=2" ]] || die
708#
709# echo "All tests pass"
710#}
711#TESTS

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