| 1 | # Copyright 1999-2002 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 |
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3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.15 2003/04/06 23:35:41 method Exp $ |
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4 | # |
| 3 | # Author Bart Verwilst <verwilst@gentoo.org> |
5 | # Author Bart Verwilst <verwilst@gentoo.org> |
| 4 | # /space/gentoo/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass |
6 | |
| 5 | ECLASS=flag-o-matic |
7 | ECLASS=flag-o-matic |
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8 | INHERITED="$INHERITED $ECLASS" |
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9 | |
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10 | # |
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11 | #### filter-flags <flag> #### |
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12 | # Remove particular flags from C[XX]FLAGS |
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13 | # |
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14 | #### append-flags <flag> #### |
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15 | # Add extra flags to your current C[XX]FLAGS |
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16 | # |
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17 | #### replace-flags <orig.flag> <new.flag> ### |
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18 | # Replace a flag by another one |
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19 | # |
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20 | #### is-flag <flag> #### |
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21 | # Returns "true" if flag is set in C[XX]FLAGS |
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22 | # Matches only complete flag |
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23 | # |
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24 | #### strip-flags #### |
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25 | # Strip C[XX]FLAGS of everything except known |
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26 | # good options. |
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27 | # |
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28 | #### get-flag <flag> #### |
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29 | # Find and echo the value for a particular flag |
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30 | # |
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31 | |
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32 | ALLOWED_FLAGS="-O -mcpu -march -mtune -fstack-protector -pipe -g" |
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33 | |
| 6 | |
34 | |
| 7 | filter-flags () { |
35 | filter-flags () { |
| 8 | |
36 | |
| 9 | for x in $1; do |
37 | for x in $1 |
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38 | do |
| 10 | CFLAGS="${CFLAGS/$x}" |
39 | export CFLAGS="${CFLAGS/${x}}" |
| 11 | CXXFLAGS="${CXXFLAGS/$x}" |
40 | export CXXFLAGS="${CXXFLAGS/${x}}" |
| 12 | done |
41 | done |
| 13 | |
42 | |
| 14 | } |
43 | } |
| 15 | |
44 | |
| 16 | max-optim () { |
45 | append-flags () { |
| 17 | |
46 | |
| 18 | for x in $CFLAGS; do |
47 | CFLAGS="${CFLAGS} $1" |
| 19 | echo $x |
48 | CXXFLAGS="${CXXFLAGS} $1" |
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49 | |
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50 | } |
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51 | |
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52 | replace-flags () { |
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53 | |
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54 | CFLAGS="${CFLAGS/${1}/${2} }" |
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55 | CXXFLAGS="${CXXFLAGS/${1}/${2} }" |
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56 | |
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57 | } |
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58 | |
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59 | is-flag() { |
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60 | |
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61 | for x in ${CFLAGS} ${CXXFLAGS} |
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62 | do |
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63 | if [ "${x}" = "$1" ] |
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64 | then |
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65 | echo true |
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66 | break |
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67 | fi |
| 20 | done |
68 | done |
| 21 | |
69 | |
| 22 | } |
70 | } |
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71 | |
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72 | strip-flags() { |
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73 | |
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74 | local NEW_CFLAGS="" |
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75 | local NEW_CXXFLAGS="" |
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76 | |
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77 | set -f |
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78 | |
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79 | for x in ${CFLAGS} |
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80 | do |
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81 | for y in ${ALLOWED_FLAGS} |
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82 | do |
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83 | flag=${x%%=*} |
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84 | if [ "${flag%%${y}}" = "" ] |
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85 | then |
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86 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
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87 | break |
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88 | fi |
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89 | done |
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90 | done |
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91 | |
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92 | for x in ${CXXFLAGS} |
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93 | do |
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94 | for y in ${ALLOWED_FLAGS} |
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95 | do |
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96 | flag=${x%%=*} |
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97 | if [ "${flag%%${y}}" = "" ] |
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98 | then |
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99 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
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100 | break |
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101 | fi |
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102 | done |
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103 | done |
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104 | |
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105 | set +f |
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106 | |
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107 | export CFLAGS="${NEW_CFLAGS}" |
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108 | export CXXFLAGS="${NEW_CXXFLAGS}" |
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109 | } |
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110 | |
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111 | get-flag() { |
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112 | local findflag="$1" |
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113 | |
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114 | for f in ${CFLAGS} ${CXXFLAGS} ; do |
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115 | if [ "${f/${findflag}}" != "${f}" ] ; then |
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116 | echo "${f/-${findflag}=}" |
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117 | return |
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118 | fi |
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119 | done |
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120 | } |
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