configure

   1 #!/bin/bash
   2 #
   3 # ./configure -- A very simple configure script for splashutils.
   4 #
   5 # (c) 2006-2007, Michal Januszewski <spock@gentoo.org>
   6 #
   7 # In time, it will be replaced by a fully-fledged version.
   8 #
   9
  10 copt_klibc=CONFIG_KLIBC
  11 copt_klibc_desc="Link statically against klibc"
  12 copt_klibc_type="bool"
  13 copt_klibc_def=n
  14
  15 copt_x86emu=CONFIG_X86EMU
  16 copt_x86emu_desc="Use x86emu for BIOS calls"
  17 copt_x86emu_type="bool"
  18 copt_x86emu_def=auto
  19 copt_x86emu_test()
  20 {
  21         local m=`uname -m`
  22         if [ "$m" != "i686" -a "$m" != "i586" -a "$m" != "i486" -a "$m" != "i386" ]; then
  23                 echo "y";
  24         else
  25                 echo "n";
  26         fi
  27 }
  28
  29 options=`set | grep '^copt_' | sed -re 's/copt_([^_=]+)[_=].*/\1/' | uniq`
  30
  31 write_conf()
  32 {
  33         echo -n > config.h
  34
  35         for i in ${options} ; do
  36                 eval vval=\$copt_$i\_val
  37                 eval vtype=\$copt_$i\_type
  38                 eval vname=\$copt_$i
  39
  40                 if [[ "$vtype" == "bool" ]]; then
  41                         if [[ "$vval" == "y" ]]; then
  42                                 echo "#define $vname" >> config.h
  43                         else
  44                                 echo "#undef $vname" >> config.h
  45                         fi
  46                 else
  47                         echo "#define $vname \"$vval\"" >> config.h
  48                 fi
  49         done
  50
  51         echo "config.h successfully created."
  52         echo "You can run \`make\` now."
  53 }
  54
  55 usage()
  56 {
  57         cat <<EOTB
  58 v86d configuration script
  59
  60 Please use the following options to configure v86d.
  61 EOTB
  62     printf "  %-20s %-s\n\n" --default "Use a default v86d configuration"
  63
  64         for i in ${options} ; do
  65                 eval vtype=\$copt_$i\_type
  66                 eval vdesc=\$copt_$i\_desc
  67                 eval vdef=\$copt_$i\_def
  68
  69                 if [[ ${vtype} == "string" ]]; then
  70                         with="--with-${i}=VAL"
  71                 else
  72                         with="--with-${i}"
  73                 fi
  74
  75                 vdesc="${vdesc} (default: $vdef)"
  76
  77                 printf "  %-20s %-s\n" ${with} "${vdesc}"
  78         done
  79 }
  80
  81 if [[ $# == 0 ]]; then
  82         usage
  83         exit
  84 fi
  85
  86 for i in ${options} ; do
  87         eval copt_${i}_val="\$copt_${i}_def"
  88         if [ -n "$(set | grep copt_${i}_test)" ]; then
  89                 eval copt_${i}_val="\$(copt_${i}_test)"
  90         fi
  91 done
  92
  93 for i in $* ; do
  94         if [[ "$i" == "--help" ]]; then
  95                 usage
  96                 exit
  97         elif [[ "$i" == "--default" ]]; then
  98                 write_conf
  99                 exit
 100         fi
 101
 102         j=${i//--with-}
 103         if [[ "$j" != "$i" ]]; then
 104                 with=y
 105         else
 106                 j=${i//--without-}
 107                 if [[ "$j" != "$i" ]]; then
 108                         with=n
 109                 else
 110                         usage
 111                         exit
 112                 fi
 113         fi
 114
 115         optval=${j#*=}
 116         optname=${j%=*}
 117
 118         eval t=\$copt_${optname}_val
 119         if [[ "x$t" == "x" ]]; then
 120                 echo "Unrecognized setting ${optname}." 1>&2
 121                 exit
 122         fi
 123
 124         eval vtype=\$copt_${optname}_type
 125         if [[ "$vtype" == "bool" ]]; then
 126                 eval copt_${optname}_val=${with}
 127         else
 128                 eval copt_${optname}_val=${optval}
 129         fi
 130 done
 131
 132 write_conf
 133 exit
 134