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# Copyright 1999-2003 Gentoo Technologies, Inc. |
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# Distributed under the terms of the GNU General Public License v2 |
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# $Header: /home/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.12 2003/02/16 04:26:21 vapier Exp $ |
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# |
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# Author Bart Verwilst <verwilst@gentoo.org> |
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|
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ECLASS=flag-o-matic |
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INHERITED="$INHERITED $ECLASS" |
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|
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# |
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#### filter-flags <flag> #### |
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# Remove particular flags from C[XX]FLAGS |
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# |
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#### append-flags <flag> #### |
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# Add extra flags to your current C[XX]FLAGS |
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# |
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#### replace-flags <orig.flag> <new.flag> ### |
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# Replace a flag by another one |
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# |
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#### is-flag <flag> #### |
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# Returns "true" if flag is set in C[XX]FLAGS |
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# Matches only complete flag |
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# |
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#### strip-flags #### |
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# Strip C[XX]FLAGS of everything except known |
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# good options. |
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# |
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#### get-flag <flag> #### |
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# Find and echo the value for a particular flag |
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# |
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|
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ALLOWED_FLAGS="-O -mcpu -march -pipe -g" |
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|
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|
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filter-flags () { |
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|
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for x in $1 |
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do |
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export CFLAGS="${CFLAGS/${x}}" |
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export CXXFLAGS="${CXXFLAGS/${x}}" |
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done |
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|
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} |
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|
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append-flags () { |
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|
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CFLAGS="${CFLAGS} $1" |
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CXXFLAGS="${CXXFLAGS} $1" |
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|
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} |
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|
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replace-flags () { |
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|
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CFLAGS="${CFLAGS/${1}/${2} }" |
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CXXFLAGS="${CXXFLAGS/${1}/${2} }" |
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|
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} |
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|
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is-flag() { |
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|
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for x in ${CFLAGS} ${CXXFLAGS} |
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do |
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if [ "${x}" = "$1" ] |
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then |
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echo true |
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break |
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fi |
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done |
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|
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} |
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|
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strip-flags() { |
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|
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local NEW_CFLAGS="" |
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local NEW_CXXFLAGS="" |
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|
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set -f |
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|
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for x in ${CFLAGS} |
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do |
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for y in ${ALLOWED_FLAGS} |
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do |
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if [ "${x/${y}}" != "${x}" ] |
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then |
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if [ -z "${NEW_CFLAGS}" ] |
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then |
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NEW_CFLAGS="${x}" |
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else |
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NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
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fi |
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fi |
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done |
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done |
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|
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for x in ${CXXFLAGS} |
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do |
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for y in ${ALLOWED_FLAGS} |
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do |
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if [ "${x/${y}}" != "${x}" ] |
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then |
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if [ -z "${NEW_CXXFLAGS}" ] |
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then |
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NEW_CXXFLAGS="${x}" |
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else |
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NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
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fi |
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fi |
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done |
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done |
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|
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set +f |
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|
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export CFLAGS="${NEW_CFLAGS}" |
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export CXXFLAGS="${NEW_CXXFLAGS}" |
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} |
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|
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get-flag() { |
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local findflag="$1" |
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|
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for f in ${CFLAGS} ${CXXFLAGS} ; do |
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if [ "${f/${findflag}}" != "${f}" ] ; then |
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echo "${f/-${findflag}=}" |
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return |
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fi |
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done |
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} |
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