scripts/config/lxdialog/check-lxdialog.sh

   1 #!/usr/bin/env bash
   2 # Check ncurses compatibility
   3
   4 # What library to link
   5 ldflags()
   6 {
   7         for ext in so dylib; do
   8                 for dir in "" /usr/local/lib /opt/local/lib; do
   9                         $cc ${dir:+-L$dir} -print-file-name=libncursesw.$ext | grep -q /
  10                         if [ $? -eq 0 ]; then
  11                                 echo $dir '-lncursesw'
  12                                 exit
  13                         fi
  14                         $cc ${dir:+-L$dir} -print-file-name=libncurses.$ext | grep -q /
  15                         if [ $? -eq 0 ]; then
  16                                 echo $dir '-lncurses'
  17                                 exit
  18                         fi
  19                         $cc ${dir:+-L$dir} -print-file-name=libcurses.$ext | grep -q /
  20                         if [ $? -eq 0 ]; then
  21                                 echo $dir '-lcurses'
  22                                 exit
  23                         fi
  24                 done
  25         done
  26         exit 1
  27 }
  28
  29 # Where is ncurses.h?
  30 ccflags()
  31 {
  32         if [ -f /usr/include/ncurses/ncurses.h ]; then
  33                 echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
  34         elif [ -f /usr/include/ncurses/curses.h ]; then
  35                 echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'
  36         elif [ -f /opt/local/include/ncurses/ncurses.h ]; then
  37                 echo '-I/opt/local/include -I/opt/local/include/ncurses -DCURSES_LOC="<ncurses/ncurses.h>"'
  38         elif [ -f /usr/include/ncurses.h ]; then
  39                 echo '-DCURSES_LOC="<ncurses.h>"'
  40         else
  41                 echo '-DCURSES_LOC="<curses.h>"'
  42         fi
  43 }
  44
  45 # Temp file, try to clean up after us
  46 tmp=.lxdialog.tmp
  47 trap "rm -f $tmp" 0 1 2 3 15
  48
  49 # Check if we can link to ncurses
  50 check() {
  51         echo "main() {}" | $cc -xc - -o $tmp 2> /dev/null
  52         if [ $? != 0 ]; then
  53                 echo " *** Unable to find the ncurses libraries."          1>&2
  54                 echo " *** make menuconfig require the ncurses libraries"  1>&2
  55                 echo " *** "                                               1>&2
  56                 echo " *** Install ncurses (ncurses-devel) and try again"  1>&2
  57                 echo " *** "                                               1>&2
  58                 exit 1
  59         fi
  60 }
  61
  62 usage() {
  63         printf "Usage: $0 [-check compiler options|-header|-library]\n"
  64 }
  65
  66 if [ $# -eq 0 ]; then
  67         usage
  68         exit 1
  69 fi
  70
  71 cc=""
  72 case "$1" in
  73         "-check")
  74                 shift
  75                 cc="$@"
  76                 check
  77                 ;;
  78         "-ccflags")
  79                 ccflags
  80                 ;;
  81         "-ldflags")
  82                 shift
  83                 cc="$@"
  84                 ldflags
  85                 ;;
  86         "*")
  87                 usage
  88                 exit 1
  89                 ;;
  90 esac