Improve configure argument handling in sys/install.sh ##build

* Handle --help, --with-capstone5 and --install (no symlinks)

sys/build.sh

@@ -80,7 +80,7 @@ fi
 [ -z "${PREFIX}" ] && PREFIX="${DEFAULT_PREFIX}"
 
 case "$1" in
--h)
+-h|--help)
 	echo "Usage: sys/build.sh [/usr]"
 	exit 0
 	;;
@@ -96,6 +96,10 @@ case "$1" in
 	;;
 esac
 
+if [ "$USE_CS5" = 1 ]; then
+	CFGARG="${CFGARG} --with-capstone5"
+fi
+
 ccache --help > /dev/null 2>&1
 if [ $? = 0 ]; then
 	[ -z "${CC}" ] && CC=gcc
@@ -132,9 +136,6 @@ fi
 
 # build
 ${MAKE} mrproper > /dev/null 2>&1
-if [ -d shlr/capstone/.git ]; then
-( cd shlr/capstone ; git clean -xdf )
-fi
 [ "`uname`" = Linux ] && export LDFLAGS="-Wl,--as-needed ${LDFLAGS}"
 if [ -z "${KEEP_PLUGINS_CFG}" ]; then
 	rm -f plugins.cfg

sys/install.sh

@@ -6,6 +6,30 @@ gmake --help >/dev/null 2>&1
 
 # if owner of sys/install.sh != uid && uid == 0 { exec sudo -u id -A $SUDO_UID sys/install.sh $* }
 
+while : ; do
+	case "$1" in
+	--help)
+		./configure --help
+		echo
+		echo "NOTE: Use sys/install.sh --install to use 'cp' instead of 'ln'."
+		echo
+		exit 0
+		;;
+	"--with-capstone5")
+		export USE_CS5=1
+		rm -rf shlr/capstone
+		shift
+		continue
+		;;
+	"--install")
+		export INSTALL_TARGET="install"
+		shift
+		continue
+		;;
+	esac
+	break
+done
+
 if [ "${UID}" = 0 ]; then
 	echo "[XX] Do not run this script as root!"
 	if [ -n "${SUDO_USER}" ]; then