/[gentoo-x86]/eclass/flag-o-matic.eclass
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Revision 1.8 - (show annotations) (download)
Sun Oct 13 01:01:58 2002 UTC (11 years, 10 months ago) by azarah
Branch: MAIN
Changes since 1.7: +67 -11 lines
add strip-flags() to flag-o-matic.eclass

1 # Copyright 1999-2002 Gentoo Technologies, Inc.
2 # Distributed under the terms of the GNU General Public License v2
3 # Author Bart Verwilst <verwilst@gentoo.org>
4 # $Header: $
5
6 ECLASS=flag-o-matic
7 INHERITED="$INHERITED $ECLASS"
8
9 #
10 #### filter-flags <flag> ####
11 # Remove particular flags from C[XX]FLAGS
12 #
13 #### append-flags <flag> ####
14 # Add extra flags to your current C[XX]FLAGS
15 #
16 #### replace-flags <orig.flag> <new.flag> ###
17 # Replace a flag by another one
18 #
19 #### is-flag <flag> ####
20 # Returns "true" if flag is set in C[XX]FLAGS
21 # Matches only complete flag
22 #
23 #### strip-flags ####
24 # Strip C[XX]FLAGS of everything except known
25 # good options.
26 #
27
28 filter-flags () {
29
30 for x in $1
31 do
32 export CFLAGS="${CFLAGS/${x}}"
33 export CXXFLAGS="${CXXFLAGS/${x}}"
34 done
35
36 }
37
38 append-flags () {
39
40 CFLAGS="${CFLAGS} $1"
41 CXXFLAGS="${CXXFLAGS} $1"
42
43 }
44
45 replace-flags () {
46
47 CFLAGS="${CFLAGS/${1}/${2}}"
48 CXXFLAGS="${CXXFLAGS/${1}/${2}}"
49
50 }
51
52 is-flag() {
53
54 for x in ${CFLAGS} ${CXXFLAGS}
55 do
56 if [ "${x}" = "$1" ]
57 then
58 echo true
59 break
60 fi
61 done
62
63 }
64
65 strip-flags() {
66
67 local NEW_CFLAGS=""
68 local NEW_CXXFLAGS=""
69
70 local ALLOWED_FLAGS="-O -mcpu -march -pipe"
71
72 set -f
73
74 for x in ${CFLAGS}
75 do
76 for y in ${ALLOWED_FLAGS}
77 do
78 if [ "${x/${y}}" != "${x}" ]
79 then
80 if [ -z "${NEW_CFLAGS}" ]
81 then
82 NEW_CFLAGS="${x}"
83 else
84 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
85 fi
86 fi
87 done
88 done
89
90 for x in ${CXXFLAGS}
91 do
92 for y in ${ALLOWED_FLAGS}
93 do
94 if [ "${x/${y}}" != "${x}" ]
95 then
96 if [ -z "${NEW_CXXFLAGS}" ]
97 then
98 NEW_CXXFLAGS="${x}"
99 else
100 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
101 fi
102 fi
103 done
104 done
105
106 set +f
107
108 export CFLAGS="${NEW_CFLAGS}"
109 export CXXFLAGS="${NEW_CXXFLAGS}"
110 }

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