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Revision 1.24 Revision 1.76
1# Copyright 1999-2003 Gentoo Technologies, Inc. 1# Copyright 1999-2004 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 1.24 2003/07/22 12:48:11 aliz Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.76 2004/10/30 00:00:14 vapier Exp $
4# 4#
5# Author Bart Verwilst <verwilst@gentoo.org> 5# Author Bart Verwilst <verwilst@gentoo.org>
6 6
7ECLASS=flag-o-matic 7ECLASS=flag-o-matic
8INHERITED="$INHERITED $ECLASS" 8INHERITED="$INHERITED $ECLASS"
9
10IUSE="debug"
11
12# need access to emktemp()
13inherit eutils toolchain-funcs
9 14
10# 15#
11#### filter-flags <flags> #### 16#### filter-flags <flags> ####
12# Remove particular flags from C[XX]FLAGS 17# Remove particular flags from C[XX]FLAGS
13# Matches only complete flags 18# Matches only complete flags
16# Add extra flags to your current C[XX]FLAGS 21# Add extra flags to your current C[XX]FLAGS
17# 22#
18#### replace-flags <orig.flag> <new.flag> ### 23#### replace-flags <orig.flag> <new.flag> ###
19# Replace a flag by another one 24# Replace a flag by another one
20# 25#
26#### replace-cpu-flags <old.cpus> <new.cpu> ###
27# Replace march/mcpu flags that specify <old.cpus>
28# with flags that specify <new.cpu>
29#
21#### is-flag <flag> #### 30#### is-flag <flag> ####
22# Returns "true" if flag is set in C[XX]FLAGS 31# Returns "true" if flag is set in C[XX]FLAGS
23# Matches only complete a flag 32# Matches only complete a flag
24# 33#
25#### strip-flags #### 34#### strip-flags ####
26# Strip C[XX]FLAGS of everything except known 35# Strip C[XX]FLAGS of everything except known
27# good options. 36# good options.
28# 37#
38#### strip-unsupported-flags ####
39# Strip C[XX]FLAGS of any flags not supported by
40# installed version of gcc
41#
29#### get-flag <flag> #### 42#### get-flag <flag> ####
30# Find and echo the value for a particular flag 43# Find and echo the value for a particular flag
31# 44#
32#### replace-sparc64-flags #### 45#### replace-sparc64-flags ####
33# Sets mcpu to v8 and uses the original value 46# Sets mcpu to v8 and uses the original value
34# as mtune if none specified. 47# as mtune if none specified.
35# 48#
36 49#### filter-mfpmath <math types> ####
50# Remove specified math types from the fpmath specification
51# If the user has -mfpmath=sse,386, running `filter-mfpmath sse`
52# will leave the user with -mfpmath=386
53#
54#### append-ldflags ####
55# Add extra flags to your current LDFLAGS
56#
57#### filter-ldflags <flags> ####
58# Remove particular flags from LDFLAGS
59# Matches only complete flags
60#
61#### etexec-flags ####
62# hooked function for hardened gcc that appends
63# -fno-pic to {C,CXX,LD}FLAGS
64# when a package is filtering -fpic, -fPIC, -fpie, -fPIE
65#
66#### fstack-flags ####
67# hooked function for hardened gcc that appends
68# -fno-stack-protector to {C,CXX,LD}FLAGS
69# when a package is filtering -fstack-protector, -fstack-protector-all
70# notice: modern automatic specs files will also suppress -fstack-protector-all
71# when only -fno-stack-protector is given
72#
37 73
38# C[XX]FLAGS that we allow in strip-flags 74# C[XX]FLAGS that we allow in strip-flags
39ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g" 75setup-allowed-flags() {
76 if [ -z "${ALLOWED_FLAGS}" ] ; then
77 export ALLOWED_FLAGS="-pipe"
78 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune"
79 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fno-stack-protector"
80 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time"
81 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3"
82 case "${ARCH}" in
83 mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -EL -EB -mabi" ;;
84 amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC -m64" ;;
85 x86) ALLOWED_FLAGS="${ALLOWED_FLAGS} -m32" ;;
86 alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
87 ia64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
88 esac
89 fi
90 # allow a bunch of flags that negate features / control ABI
91 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all"
40case "${ARCH}" in 92 case "${ARCH}" in
41 mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;; 93 x86|amd64|ia64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow" ;;
42 amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
43esac 94 esac
95 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs -msoft-float -mflat -mno-faster-structs -mfaster-structs -mlittle-endian -mbig-endian -mlive-g0 -mcmodel -mno-stack-bias -mstack-bias"
44 96
45# C[XX]FLAGS that we are think is ok, but needs testing 97 # C[XX]FLAGS that we are think is ok, but needs testing
46# NOTE: currently -Os have issues with gcc3 and K6* arch's 98 # NOTE: currently -Os have issues with gcc3 and K6* arch's
47UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" 99 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
48 100 return 0
49filter-mfpmath() {
50 for a in $CFLAGS; do
51 if [ "${a:0:8}" == "-mfpmath" ]; then
52 orig_mfpmath=$a
53 fi
54 done
55
56 mfpmath="$( echo $orig_mfpmath | awk -F '=' '{print $2}' | tr "," " " )"
57 for b in $@; do
58 mfpmath="${mfpmath/$b}"
59 done
60
61 if [ -z "${mfpmath/ }" ]; then
62 filter-flags "$orig_mfpmath"
63 else
64 new_mfpmath="-mfpmath=$( echo $mfpmath | sed -e "s/ /,/g" -e "s/,,/,/g" )"
65 replace-flags "$orig_mfpmath" "$new_mfpmath"
66 fi
67} 101}
68 102
69filter-flags() { 103filter-flags() {
70 # we do this fancy spacing stuff so as to not filter 104 local x f fset
71 # out part of a flag ... we want flag atoms ! :D 105 declare -a new_CFLAGS new_CXXFLAGS
72 export CFLAGS=" ${CFLAGS} " 106
73 export CXXFLAGS=" ${CXXFLAGS} "
74 for x in $@ ; do 107 for x in "$@" ; do
75 export CFLAGS="${CFLAGS/ ${x} / }" 108 case "${x}" in
76 export CXXFLAGS="${CXXFLAGS/ ${x} / }" 109 -fPIC|-fpic|-fPIE|-fpie|-pie) etexec-flags;;
110 -fstack-protector|-fstack-protector-all) fstack-flags;;
111 esac
112 done
113
114 for fset in CFLAGS CXXFLAGS; do
115 # Looping over the flags instead of using a global
116 # substitution ensures that we're working with flag atoms.
117 # Otherwise globs like -O* have the potential to wipe out the
118 # list of flags.
119 for f in ${!fset}; do
120 for x in "$@"; do
121 # Note this should work with globs like -O*
122 [[ ${f} == ${x} ]] && continue 2
123 done
124 eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f}
77 done 125 done
78 export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}" 126 eval export ${fset}=\${new_${fset}\[*]}
79 export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}" 127 done
128
129 return 0
130}
131
132filter-lfs-flags() {
133 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
134}
135
136append-lfs-flags() {
137 append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
80} 138}
81 139
82append-flags() { 140append-flags() {
83 CFLAGS="${CFLAGS} $@" 141 export CFLAGS="${CFLAGS} $*"
84 CXXFLAGS="${CXXFLAGS} $@" 142 export CXXFLAGS="${CXXFLAGS} $*"
143 [ -n "`is-flag -fno-stack-protector`" -o \
144 -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags
145 return 0
85} 146}
86 147
87replace-flags() { 148replace-flags() {
88 CFLAGS="${CFLAGS/${1}/${2} }" 149 local f fset
89 CXXFLAGS="${CXXFLAGS/${1}/${2} }" 150 declare -a new_CFLAGS new_CXXFLAGS
151
152 for fset in CFLAGS CXXFLAGS; do
153 # Looping over the flags instead of using a global
154 # substitution ensures that we're working with flag atoms.
155 # Otherwise globs like -O* have the potential to wipe out the
156 # list of flags.
157 for f in ${!fset}; do
158 # Note this should work with globs like -O*
159 [[ ${f} == ${1} ]] && f=${2}
160 eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f}
161 done
162 eval export ${fset}=\${new_${fset}\[*]}
163 done
164
165 return 0
166}
167
168replace-cpu-flags() {
169 local newcpu="$#" ; newcpu="${!newcpu}"
170 while [ $# -gt 1 ] ; do
171 # quote to make sure that no globbing is done (particularly on
172 # ${oldcpu} prior to calling replace-flags
173 replace-flags "-march=${1}" "-march=${newcpu}"
174 replace-flags "-mcpu=${1}" "-mcpu=${newcpu}"
175 replace-flags "-mtune=${1}" "-mtune=${newcpu}"
176 shift
177 done
178 return 0
90} 179}
91 180
92is-flag() { 181is-flag() {
182 local x
183
93 for x in ${CFLAGS} ${CXXFLAGS} ; do 184 for x in ${CFLAGS} ${CXXFLAGS} ; do
185 # Note this should work with globs like -mcpu=ultrasparc*
94 if [ "${x}" == "$1" ] ; then 186 if [[ ${x} == ${1} ]]; then
95 echo true 187 echo true
96 return 0 188 return 0
97 fi 189 fi
98 done 190 done
99 return 1 191 return 1
100} 192}
101 193
194filter-mfpmath() {
195 local orig_mfpmath new_math prune_math
196
197 # save the original -mfpmath flag
198 orig_mfpmath="`get-flag -mfpmath`"
199 # get the value of the current -mfpmath flag
200 new_math=" `get-flag mfpmath | tr , ' '` "
201 # figure out which math values are to be removed
202 prune_math=""
203 for prune_math in "$@" ; do
204 new_math="${new_math/ ${prune_math} / }"
205 done
206 new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`"
207
208 if [ -z "${new_math}" ] ; then
209 # if we're removing all user specified math values are
210 # slated for removal, then we just filter the flag
211 filter-flags ${orig_mfpmath}
212 else
213 # if we only want to filter some of the user specified
214 # math values, then we replace the current flag
215 replace-flags ${orig_mfpmath} -mfpmath=${new_math}
216 fi
217 return 0
218}
219
102strip-flags() { 220strip-flags() {
221 local x y flag NEW_CFLAGS NEW_CXXFLAGS
222
223 setup-allowed-flags
224
103 local NEW_CFLAGS="" 225 local NEW_CFLAGS=""
104 local NEW_CXXFLAGS="" 226 local NEW_CXXFLAGS=""
105 227
106 # Allow unstable C[XX]FLAGS if we are using unstable profile ... 228 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
107 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then 229 if has ~${ARCH} ${ACCEPT_KEYWORDS} ; then
108 [ `use debug` ] && einfo "Enabling the use of some unstable flags" 230 use debug && einfo "Enabling the use of some unstable flags"
109 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" 231 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
110 fi 232 fi
111 233
112 set -f 234 set -f # disable pathname expansion
113 235
114 for x in ${CFLAGS} 236 for x in ${CFLAGS}; do
115 do
116 for y in ${ALLOWED_FLAGS} 237 for y in ${ALLOWED_FLAGS}; do
117 do
118 flag=${x%%=*} 238 flag=${x%%=*}
119 if [ "${flag%%${y}}" = "" ] 239 if [ "${flag%%${y}}" = "" ] ; then
120 then
121 NEW_CFLAGS="${NEW_CFLAGS} ${x}" 240 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
122 break 241 break
123 fi 242 fi
124 done 243 done
125 done 244 done
126 245
127 for x in ${CXXFLAGS} 246 for x in ${CXXFLAGS}; do
128 do
129 for y in ${ALLOWED_FLAGS} 247 for y in ${ALLOWED_FLAGS}; do
130 do
131 flag=${x%%=*} 248 flag=${x%%=*}
132 if [ "${flag%%${y}}" = "" ] 249 if [ "${flag%%${y}}" = "" ] ; then
133 then
134 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" 250 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
135 break 251 break
136 fi 252 fi
137 done 253 done
138 done 254 done
139 255
140 set +f 256 # In case we filtered out all optimization flags fallback to -O2
257 if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then
258 NEW_CFLAGS="${NEW_CFLAGS} -O2"
259 fi
260 if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then
261 NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2"
262 fi
141 263
142 [ `use debug` ] \ 264 set +f # re-enable pathname expansion
143 && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
144 && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
145 265
146 export CFLAGS="${NEW_CFLAGS}" 266 export CFLAGS="${NEW_CFLAGS}"
147 export CXXFLAGS="${NEW_CXXFLAGS}" 267 export CXXFLAGS="${NEW_CXXFLAGS}"
268 return 0
269}
270
271test_flag() {
272 if $(tc-getCC) -S -xc "$@" -o "$(emktemp)" /dev/null &>/dev/null; then
273 printf "%s\n" "$*"
274 return 0
275 fi
276 return 1
277}
278
279test_version_info() {
280 if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then
281 return 0
282 else
283 return 1
284 fi
285}
286
287strip-unsupported-flags() {
288 local NEW_CFLAGS NEW_CXXFLAGS
289
290 for x in ${CFLAGS} ; do
291 NEW_CFLAGS="${NEW_CFLAGS} `test_flag ${x}`"
292 done
293 for x in ${CXXFLAGS} ; do
294 NEW_CXXFLAGS="${NEW_CXXFLAGS} `test_flag ${x}`"
295 done
296
297 export CFLAGS="${NEW_CFLAGS}"
298 export CXXFLAGS="${NEW_CXXFLAGS}"
148} 299}
149 300
150get-flag() { 301get-flag() {
151 local findflag="$1" 302 local f findflag="$1"
152 303
304 # this code looks a little flaky but seems to work for
305 # everything we want ...
306 # for example, if CFLAGS="-march=i686":
307 # `get-flag -march` == "-march=i686"
308 # `get-flag march` == "i686"
153 for f in ${CFLAGS} ${CXXFLAGS} ; do 309 for f in ${CFLAGS} ${CXXFLAGS} ; do
154 if [ "${f/${findflag}}" != "${f}" ] ; then 310 if [ "${f/${findflag}}" != "${f}" ] ; then
155 echo "${f/-${findflag}=}" 311 printf "%s\n" "${f/-${findflag}=}"
156 return 312 return 0
157 fi 313 fi
158 done 314 done
315 return 1
316}
317
318has_hardened() {
319 test_version_info Hardened && return 0
320 # the specs file wont exist unless gcc has GCC_SPECS support
321 [ -f "${GCC_SPECS}" -a "${GCC_SPECS}" != "${GCC_SPECS/hardened/}" ] && \
322 return 0
323 return 1
324}
325
326has_pic() {
327 [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0
328 [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0
329 test_version_info pie && return 0
330 return 1
331}
332
333has_pie() {
334 [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0
335 [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0
336 test_version_info pie && return 0
337 return 1
338}
339
340has_ssp() {
341 [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0
342 test_version_info ssp && return 0
343 return 1
344}
345
346has_m64() {
347 # this doesnt test if the flag is accepted, it tests if the flag
348 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
349 # please dont replace this function with test_flag in some future
350 # clean-up!
351 local temp="$(emktemp)"
352 echo "int main() { return(0); }" > ${temp}.c
353 MY_CC=$(tc-getCC)
354 ${MY_CC/ .*/} -m64 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1
355 local ret=$?
356 rm -f ${temp}.c
357 [ "$ret" != "1" ] && return 0
358 return 1
359}
360
361has_m32() {
362 # this doesnt test if the flag is accepted, it tests if the flag
363 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
364 # please dont replace this function with test_flag in some future
365 # clean-up!
366 local temp="$(emktemp)"
367 echo "int main() { return(0); }" > ${temp}.c
368 MY_CC=$(tc-getCC)
369 ${MY_CC/ .*/} -m32 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1
370 local ret=$?
371 rm -f ${temp}.c
372 [ "$ret" != "1" ] && return 0
373 return 1
159} 374}
160 375
161replace-sparc64-flags() { 376replace-sparc64-flags() {
162 local SPARC64_CPUS="ultrasparc v9" 377 local SPARC64_CPUS="ultrasparc v9"
163 378
164 if [ "${CFLAGS/mtune}" != "${CFLAGS}" ] 379 if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then
165 then
166 for x in ${SPARC64_CPUS} 380 for x in ${SPARC64_CPUS}; do
167 do
168 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" 381 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
169 done 382 done
170 else 383 else
171 for x in ${SPARC64_CPUS} 384 for x in ${SPARC64_CPUS}; do
172 do
173 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" 385 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
174 done 386 done
175 fi 387 fi
176 388
177 if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ] 389 if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then
178 then
179 for x in ${SPARC64_CPUS} 390 for x in ${SPARC64_CPUS}; do
180 do
181 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" 391 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
182 done 392 done
183 else 393 else
184 for x in ${SPARC64_CPUS} 394 for x in ${SPARC64_CPUS}; do
185 do
186 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" 395 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
187 done 396 done
188 fi 397 fi
398
399 export CFLAGS CXXFLAGS
189} 400}
401
402append-ldflags() {
403 export LDFLAGS="${LDFLAGS} $*"
404 return 0
405}
406
407filter-ldflags() {
408 local x
409
410 # we do this fancy spacing stuff so as to not filter
411 # out part of a flag ... we want flag atoms ! :D
412 LDFLAGS=" ${LDFLAGS} "
413 for x in "$@" ; do
414 LDFLAGS="${LDFLAGS// ${x} / }"
415 done
416 LDFLAGS="${LDFLAGS:1:${#LDFLAGS}-2}"
417 export LDFLAGS
418 return 0
419}
420
421etexec-flags() {
422 # if you're not using a hardened compiler you wont need this
423 # PIC/no-pic kludge in the first place.
424 has_hardened || return 0
425 # this kludge breaks on amd64, and probably other -fPIC dependant
426 # archs.
427 use amd64 && return 0
428
429 if has_pie || has_pic; then
430 [ -z "`is-flag -fno-pic`" ] &&
431 export CFLAGS="${CFLAGS} `test_flag -fno-pic`"
432 [ -z "`is-flag -nopie`" ] &&
433 export CFLAGS="${CFLAGS} `test_flag -nopie`"
434 fi
435 return 0
436}
437
438fstack-flags() {
439 if has_ssp; then
440 [ -z "`is-flag -fno-stack-protector`" ] &&
441 export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`"
442 fi
443 return 0
444}
445
446# This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>,
447# bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more
448# fixes.
449#
450# Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3
451gcc2-flags() {
452 CFLAGS=${CFLAGS//pentium-mmx/i586}
453 CFLAGS=${CFLAGS//pentium[234]/i686}
454 CFLAGS=${CFLAGS//k6-[23]/k6}
455 CFLAGS=${CFLAGS//athlon-tbird/i686}
456 CFLAGS=${CFLAGS//athlon-4/i686}
457 CFLAGS=${CFLAGS//athlon-[xm]p/i686}
458 CFLAGS=${CFLAGS//athlon/i686}
459
460 CXXFLAGS=${CXXFLAGS//pentium-mmx/i586}
461 CXXFLAGS=${CXXFLAGS//pentium[234]/i686}
462 CXXFLAGS=${CXXFLAGS//k6-[23]/k6}
463 CXXFLAGS=${CXXFLAGS//athlon-tbird/i686}
464 CXXFLAGS=${CXXFLAGS//athlon-4/i686}
465 CXXFLAGS=${CXXFLAGS//athlon-[xm]p/i686}
466 CXXFLAGS=${CXXFLAGS//athlon/i686}
467
468 if [ "$ARCH" = alpha ]; then
469 CHOST=${CHOST/#alphaev6[78]/alphaev6}
470 CFLAGS=${CFLAGS//ev6[78]/ev6}
471 CXXFLAGS=${CXXFLAGS//ev6[78]/ev6}
472 fi
473
474 export CFLAGS CXXFLAGS
475}

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