scripts/kconfig/lxdialog/check-lxdialog.sh

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