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/ncursesw/curses.h ]; then
  27                 echo '-I/usr/include/ncursesw -DCURSES_LOC="<ncursesw/curses.h>"'
  28         elif [ -f /usr/include/ncurses.h ]; then
  29                 echo '-DCURSES_LOC="<ncurses.h>"'
  30         else
  31                 echo '-DCURSES_LOC="<curses.h>"'
  32         fi
  33 }
  34
  35 # Temp file, try to clean up after us
  36 tmp=.lxdialog.tmp
  37 trap "rm -f $tmp" 0 1 2 3 15
  38
  39 # Check if we can link to ncurses
  40 check() {
  41         $cc -xc - -o $tmp 2>/dev/null <<'EOF'
  42 #include CURSES_LOC
  43 main() {}
  44 EOF
  45         if [ $? != 0 ]; then
  46             echo " *** Unable to find the ncurses libraries or the"       1>&2
  47             echo " *** required header files."                            1>&2
  48             echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
  49             echo " *** "                                                  1>&2
  50             echo " *** Install ncurses (ncurses-devel) and try again."    1>&2
  51             echo " *** "                                                  1>&2
  52             exit 1
  53         fi
  54 }
  55
  56 usage() {
  57         printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"
  58 }
  59
  60 if [ $# -eq 0 ]; then
  61         usage
  62         exit 1
  63 fi
  64
  65 cc=""
  66 case "$1" in
  67         "-check")
  68                 shift
  69                 cc="$@"
  70                 check
  71                 ;;
  72         "-ccflags")
  73                 ccflags
  74                 ;;
  75         "-ldflags")
  76                 shift
  77                 cc="$@"
  78                 ldflags
  79                 ;;
  80         "*")
  81                 usage
  82                 exit 1
  83                 ;;
  84 esac