scripts/kconfig/lxdialog/check-lxdialog.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Check ncurses compatibility
   4
   5 # What library to link
   6 ldflags()
   7 {
   8         pkg-config --libs ncursesw 2>/dev/null && exit
   9         pkg-config --libs ncurses 2>/dev/null && exit
  10         for ext in so a dll.a dylib ; do
  11                 for lib in ncursesw ncurses curses ; do
  12                         $cc -print-file-name=lib${lib}.${ext} | grep -q /
  13                         if [ $? -eq 0 ]; then
  14                                 echo "-l${lib}"
  15                                 exit
  16                         fi
  17                 done
  18         done
  19         exit 1
  20 }
  21
  22 # Where is ncurses.h?
  23 ccflags()
  24 {
  25         if pkg-config --cflags ncursesw 2>/dev/null; then
  26                 echo '-DCURSES_LOC="<ncurses.h>" -DNCURSES_WIDECHAR=1'
  27         elif pkg-config --cflags ncurses 2>/dev/null; then
  28                 echo '-DCURSES_LOC="<ncurses.h>"'
  29         elif [ -f /usr/include/ncursesw/curses.h ]; then
  30                 echo '-I/usr/include/ncursesw -DCURSES_LOC="<curses.h>"'
  31                 echo ' -DNCURSES_WIDECHAR=1'
  32         elif [ -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="<curses.h>"'
  36         elif [ -f /usr/include/ncurses.h ]; then
  37                 echo '-DCURSES_LOC="<ncurses.h>"'
  38         else
  39                 echo '-DCURSES_LOC="<curses.h>"'
  40         fi
  41 }
  42
  43 # Temp file, try to clean up after us
  44 tmp=.lxdialog.tmp
  45 trap "rm -f $tmp" 0 1 2 3 15
  46
  47 # Check if we can link to ncurses
  48 check() {
  49         $cc -x c - -o $tmp 2>/dev/null <<'EOF'
  50 #include CURSES_LOC
  51 main() {}
  52 EOF
  53         if [ $? != 0 ]; then
  54             echo " *** Unable to find the ncurses libraries or the"       1>&2
  55             echo " *** required header files."                            1>&2
  56             echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
  57             echo " *** "                                                  1>&2
  58             echo " *** Install ncurses (ncurses-devel or libncurses-dev " 1>&2
  59             echo " *** depending on your distribution) and try again."    1>&2
  60             echo " *** "                                                  1>&2
  61             exit 1
  62         fi
  63 }
  64
  65 usage() {
  66         printf "Usage: $0 [-check compiler options|-ccflags|-ldflags compiler options]\n"
  67 }
  68
  69 if [ $# -eq 0 ]; then
  70         usage
  71         exit 1
  72 fi
  73
  74 cc=""
  75 case "$1" in
  76         "-check")
  77                 shift
  78                 cc="$@"
  79                 check
  80                 ;;
  81         "-ccflags")
  82                 ccflags
  83                 ;;
  84         "-ldflags")
  85                 shift
  86                 cc="$@"
  87                 ldflags
  88                 ;;
  89         "*")
  90                 usage
  91                 exit 1
  92                 ;;
  93 esac