summaryrefslogtreecommitdiff
path: root/libc/Config_sh
blob: 5b72652acb6a670a4b52f6c2ab0a3b84318e0e70 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
#!/bin/sh -
# Copyright (C) 1996 Robert de Bath <rdebath@cix.compulink.co.uk>
# This file is part of the Linux-8086 C library and is distributed
# under the GNU Library General Public License.

main()
{
   rm -f .config.tmp
   ALLON=yes

   if [ "$ALLON" = yes -a -f .config.lst ]
   then grep '^[^:]*:+:' .config.lst > .config.tmp
        [ -s .config.tmp ] && ALLON=no
   fi

   if [ "$ALLON" = yes -a -f Config.dflt ]
   then grep '^[^:]*:+:' Config.dflt > .config.tmp
        [ -s .config.tmp ] && {
	   ALLON=no
	   grep -q '^kinclude:' .config.tmp >/dev/null 2>&1 || {
	      [ -d "$ELKSSRC/include" ] ||
	         echo 'kinclude:+:' >> .config.tmp
	   }
        }
   fi

   egrep -v '^#|^$' /dev/null */[Cc]onfig | \
   sed -e 's./.:.' -e 's/[	 ]*:[	 ]*/:/g' >> .config.tmp 2>/dev/null
   ls */Makefile | sed 's-/Makefile-:+:+-' >> .config.tmp
   sort .config.tmp > .config.lst

   unset_dups

   if [ ! -s .config.lst ]
   then echo 'No configuration options'
        exit 0
   fi

   CHANGED=0
   RUNNING=1
   [ "$DIST" != "" -o ! -t 1 -o ! -t 0 ] && {
      RUNNING=0
      echo 'Using default configuration'
   }
   while [ $RUNNING = 1 ]
   do
      display
      echo 
      echon 'Option to flip [or quit] >'
      read n
      v=""
      case "$n" in
      [qQ]* ) RUNNING=0
              ;;
      [0-9] )      v=$n ;;
      [0-9][0-9] ) v=$n ;;
      * )     echo '\007'
              ;;
      esac

      if [ "$v" != "" ]
      then set_option $v
      fi
   done
   
   if [ "$CHANGED" = 1 -a \( -f libc.a -o -f crt0.o \) ]
   then echo '
    You should now run a "make clean" to clean out the libc.a
'
        exit 1
   fi

   exit 0
}

display()
{
   clear 
   echo 'Configuration options'
   echo
   awk -F: < .config.lst '{
      if( $3 == "+" ) next;
      if( $2 == "+" )  { flags[$1] = 1; next; }

      printf("%2d) ", ++count);
      if( $1 in flags ) printf("(ON)  ");
      else              printf("(OFF) ");
      if( $2 == "Config" ) printf("  "); else printf("* ");
      printf("%s\n", $4);
   }'
}

unset_dups()
{
   awk -F: < .config.lst '{
      if( $2 == "+" && $3 == "+") { if( noco[$1] != 1 ) noco[$1] = 2; next; }
      if( $2 == "+" )  { flags[$1] = 1; next; }
      if( "'$ALLON'" == "yes" && $2 == "Config" ) flags[$1] = 1;

      if( $1 in flags )
      {
         if( $3 in gottype )
	    ;
	 else
	 {
            printf("%s:+:\n", $1);
            gottype[$3] = 1;
	 }
      }
      noco[$1] = 1;
      printf("%s\n", $0);
      } END {
      for(i in noco)
         if( noco[i] == 2 )
	     printf("%s:+:+\n", i);
   }' | sort > .config.tmp
   ALLON=no
   mv -f .config.tmp .config.lst
}

set_option()
{
   rm -f .config.tmp1
   awk -F: < .config.lst '{
      if( $2 == "+" && $3 == "+" ) { print $0; next; }
      if( $2 == "+" )  { flags[$1] = 1; next; }

      if( ++cnt == '$1' )
      {
         if( $1 in flags )
	    ;
	 else
            printf("%s:+:\n", $1) > ".config.tmp1";
         printf("%s\n", $0)       > ".config.tmp1";
      }
      else
      {
         if( $1 in flags )
            printf("%s:+:\n", $1);
         printf("%s\n", $0);
      }
   }' > .config.tmp2
   if [ -f .config.tmp1 ]
   then CHANGED=1
   else echo 'Cannot change that option!'
        sleep 2
   fi
   cat .config.tmp[12] > .config.lst
   rm .config.tmp[12]
   unset_dups
}

echon() { 
   [ "$ECHON" = "" ] && {
      if echo -n | grep -e -n >/dev/null
      then ECHON="echo "; ECHOT='\c'
      else ECHON="echo -n"; ECHOT=''
      fi
   }
   $ECHON "$@""$ECHOT"
}

main