kconfig: factor out ncurses check in a shell script

Cleaning up the lxdialog Makefile by factoring out the
ncurses compatibility checks.
This made the checks much more obvious and easier to extend.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
new file mode 100644
index 000000000000..a3c141b49670
--- /dev/null
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -0,0 +1,67 @@
+#!/bin/sh
+# Check ncurses compatibility
+
+# What library to link
+ldflags()
+{
+        if [ `uname` == SunOS ]; then
+                echo '-lcurses'
+        else
+                echo '-lncurses'
+        fi
+}
+
+# Where is ncurses.h?
+ccflags()
+{
+        if [ -f /usr/include/ncurses/ncurses.h ]; then
+                echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
+        elif [ -f /usr/include/ncurses/curses.h ]; then
+                echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'
+        elif [ -f /usr/include/ncurses.h ]; then
+                echo '-DCURSES_LOC="<ncurses.h>"'
+        else
+                echo '-DCURSES_LOC="<curses.h>"'
+        fi
+}
+
+compiler=""
+# Check if we can link to ncurses
+check() {
+        echo "main() {}" | $compiler -xc -
+        if [ $? != 0 ]; then
+                echo " *** Unable to find the ncurses libraries."          1>&2
+                echo " *** make menuconfig require the ncurses libraries"  1>&2
+                echo " *** "                                               1>&2
+                echo " *** Install ncurses (ncurses-devel) and try again"  1>&2
+                echo " *** "                                               1>&2
+                exit 1
+        fi
+}
+
+usage() {
+        printf "Usage: $0 [-check compiler options|-header|-library]\n"
+}
+
+if [ $# == 0 ]; then
+        usage
+        exit 1
+fi
+
+case "$1" in
+        "-check")
+                shift
+                compiler="$@"
+                check
+                ;;
+        "-ccflags")
+                ccflags
+                ;;
+        "-ldflags")
+                ldflags
+                ;;
+        "*")
+                usage
+                exit 1
+                ;;
+esac