/[gentoo-x86]/eclass/flag-o-matic.eclass
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Revision 1.14 - (show annotations) (download)
Tue Mar 25 07:07:42 2003 UTC (11 years ago) by lostlogic
Branch: MAIN
Changes since 1.13: +9 -15 lines
Fix strip-flags to do greedy matching and not have duplicated matched flags

1 # Copyright 1999-2003 Gentoo Technologies, Inc.
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /home/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.13 2003/03/04 22:07:17 verwilst Exp $
4 #
5 # Author Bart Verwilst <verwilst@gentoo.org>
6
7 ECLASS=flag-o-matic
8 INHERITED="$INHERITED $ECLASS"
9
10 #
11 #### filter-flags <flag> ####
12 # Remove particular flags from C[XX]FLAGS
13 #
14 #### append-flags <flag> ####
15 # Add extra flags to your current C[XX]FLAGS
16 #
17 #### replace-flags <orig.flag> <new.flag> ###
18 # Replace a flag by another one
19 #
20 #### is-flag <flag> ####
21 # Returns "true" if flag is set in C[XX]FLAGS
22 # Matches only complete flag
23 #
24 #### strip-flags ####
25 # Strip C[XX]FLAGS of everything except known
26 # good options.
27 #
28 #### get-flag <flag> ####
29 # Find and echo the value for a particular flag
30 #
31
32 ALLOWED_FLAGS="-O -mcpu -march -pipe -g"
33
34
35 filter-flags () {
36
37 for x in $1
38 do
39 export CFLAGS="${CFLAGS/${x}}"
40 export CXXFLAGS="${CXXFLAGS/${x}}"
41 done
42
43 }
44
45 append-flags () {
46
47 CFLAGS="${CFLAGS} $1"
48 CXXFLAGS="${CXXFLAGS} $1"
49
50 }
51
52 replace-flags () {
53
54 CFLAGS="${CFLAGS/${1}/${2} }"
55 CXXFLAGS="${CXXFLAGS/${1}/${2} }"
56
57 }
58
59 is-flag() {
60
61 for x in ${CFLAGS} ${CXXFLAGS}
62 do
63 if [ "${x}" = "$1" ]
64 then
65 echo true
66 break
67 fi
68 done
69
70 }
71
72 strip-flags() {
73
74 local NEW_CFLAGS=""
75 local NEW_CXXFLAGS=""
76
77 set -f
78
79 for x in ${CFLAGS}
80 do
81 for y in ${ALLOWED_FLAGS}
82 do
83 flag=${x%%=*}
84 if [ "${flag%%${y}}" = "" ]
85 then
86 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
87 break
88 fi
89 done
90 done
91
92 for x in ${CXXFLAGS}
93 do
94 for y in ${ALLOWED_FLAGS}
95 do
96 flag=${x%%=*}
97 if [ "${flag%%${y}}" = "" ]
98 then
99 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
100 break
101 fi
102 done
103 done
104
105 set +f
106
107 export CFLAGS="${NEW_CFLAGS}"
108 export CXXFLAGS="${NEW_CXXFLAGS}"
109 }
110
111 get-flag() {
112 local findflag="$1"
113
114 for f in ${CFLAGS} ${CXXFLAGS} ; do
115 if [ "${f/${findflag}}" != "${f}" ] ; then
116 echo "${f/-${findflag}=}"
117 return
118 fi
119 done
120 }

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