/[gentoo-x86]/eclass/flag-o-matic.eclass
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Revision 1.18 Revision 1.24
1# Copyright 1999-2003 Gentoo Technologies, Inc. 1# Copyright 1999-2003 Gentoo Technologies, Inc.
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 1.18 2003/06/17 14:38:32 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.24 2003/07/22 12:48:11 aliz 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 $ECLASS"
35# 35#
36 36
37 37
38# C[XX]FLAGS that we allow in strip-flags 38# C[XX]FLAGS that we allow in strip-flags
39ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g" 39ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"
40case "${ARCH}" in
41 mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;;
42 amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
43esac
40 44
41# C[XX]FLAGS that we are think is ok, but needs testing 45# C[XX]FLAGS that we are think is ok, but needs testing
42# NOTE: currently -Os have issues with gcc3 and K6* arch's 46# NOTE: currently -Os have issues with gcc3 and K6* arch's
43UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" 47UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
48
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}
44 68
45filter-flags() { 69filter-flags() {
46 # we do this fancy spacing stuff so as to not filter 70 # we do this fancy spacing stuff so as to not filter
47 # out part of a flag ... we want flag atoms ! :D 71 # out part of a flag ... we want flag atoms ! :D
48 export CFLAGS=" ${CFLAGS} " 72 export CFLAGS=" ${CFLAGS} "
54 export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}" 78 export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
55 export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}" 79 export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
56} 80}
57 81
58append-flags() { 82append-flags() {
59 CFLAGS="${CFLAGS} $1" 83 CFLAGS="${CFLAGS} $@"
60 CXXFLAGS="${CXXFLAGS} $1" 84 CXXFLAGS="${CXXFLAGS} $@"
61} 85}
62 86
63replace-flags() { 87replace-flags() {
64 CFLAGS="${CFLAGS/${1}/${2} }" 88 CFLAGS="${CFLAGS/${1}/${2} }"
65 CXXFLAGS="${CXXFLAGS/${1}/${2} }" 89 CXXFLAGS="${CXXFLAGS/${1}/${2} }"
78strip-flags() { 102strip-flags() {
79 local NEW_CFLAGS="" 103 local NEW_CFLAGS=""
80 local NEW_CXXFLAGS="" 104 local NEW_CXXFLAGS=""
81 105
82 # Allow unstable C[XX]FLAGS if we are using unstable profile ... 106 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
83 if [ "${ACCEPT_KEYWORDS/~/}" != "${ACCEPT_KEYWORDS}" -a \ 107 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then
84 "${ACCEPT_KEYWORDS/-~/}" = "${ACCEPT_KEYWORDS}" ]
85 then
86 if use debug &> /dev/null
87 then
88 einfo "Enabling the use of some unstable flags" 108 [ `use debug` ] && einfo "Enabling the use of some unstable flags"
89 fi
90
91 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" 109 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
92 fi 110 fi
93 111
94 set -f 112 set -f
95 113
119 done 137 done
120 done 138 done
121 139
122 set +f 140 set +f
123 141
124 use debug &>/dev/null && einfo "CFLAGS=\"${NEW_CFLAGS}\"" 142 [ `use debug` ] \
143 && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
125 use debug &>/dev/null && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\"" 144 && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
126 145
127 export CFLAGS="${NEW_CFLAGS}" 146 export CFLAGS="${NEW_CFLAGS}"
128 export CXXFLAGS="${NEW_CXXFLAGS}" 147 export CXXFLAGS="${NEW_CXXFLAGS}"
129} 148}
130 149
131get-flag() { 150get-flag() {

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