- pull check-lxdialog from linux-2.6.26

scripts/kconfig/lxdialog/check-lxdialog.sh

@@ -4,21 +4,15 @@
 # What library to link
 ldflags()
 {
-	$cc -print-file-name=libncursesw.so | grep -q /
-	if [ $? -eq 0 ]; then
-		echo '-lncursesw'
-		exit
-	fi
-	$cc -print-file-name=libncurses.so | grep -q /
-	if [ $? -eq 0 ]; then
-		echo '-lncurses'
-		exit
-	fi
-	$cc -print-file-name=libcurses.so | grep -q /
-	if [ $? -eq 0 ]; then
-		echo '-lcurses'
-		exit
-	fi
+	for ext in so a dylib ; do
+		for lib in ncursesw ncurses curses ; do
+			$cc -print-file-name=lib${lib}.${ext} | grep -q /
+			if [ $? -eq 0 ]; then
+				echo "-l${lib}"
+				exit
+			fi
+		done
+	done
 	#bbox# exit 1
 	echo '-lcurses'
 	exit
@@ -44,14 +38,18 @@ trap "rm -f $tmp" 0 1 2 3 15
 
 # Check if we can link to ncurses
 check() {
-	echo "main() {}" | $cc -xc - -o $tmp 2> /dev/null
+        $cc -xc - -o $tmp 2>/dev/null <<'EOF'
+#include CURSES_LOC
+main() {}
+EOF
 	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
+	    echo " *** Unable to find the ncurses libraries or the"       1>&2
+	    echo " *** required header files."                            1>&2
+	    echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
+	    echo " *** "                                                  1>&2
+	    echo " *** Install ncurses (ncurses-devel) and try again."    1>&2
+	    echo " *** "                                                  1>&2
+	    exit 1
 	fi
 }
 
@@ -59,7 +57,7 @@ usage() {
 	printf "Usage: $0 [-check compiler options|-header|-library]\n"
 }
 
-if [ $# == 0 ]; then
+if [ $# -eq 0 ]; then
 	usage
 	exit 1
 fi