build-package.sh: fix license installation step

scripts/build/termux_step_install_license.sh

@@ -1,24 +1,32 @@
 termux_step_install_license() {
 	mkdir -p "$TERMUX_PREFIX/share/doc/$TERMUX_PKG_NAME"
+
 	if [ ! "${TERMUX_PKG_LICENSE_FILE}" = "" ]; then
+		local LICENSE
 		for LICENSE in $TERMUX_PKG_LICENSE_FILE; do
-			if [ ! -f "$TERMUX_PKG_SRCDIR/$LICENSE" ]; then termux_error_exit "$TERMUX_PKG_SRCDIR/$LICENSE does not exist"; fi
-			cp -f ${TERMUX_PKG_SRCDIR}/${LICENSE} ${TERMUX_PREFIX}/share/doc/${TERMUX_PKG_NAME}
+			if [ ! -f "$TERMUX_PKG_SRCDIR/$LICENSE" ]; then
+				termux_error_exit "$TERMUX_PKG_SRCDIR/$LICENSE does not exist"
+			fi
+			cp -f "${TERMUX_PKG_SRCDIR}/${LICENSE}" "${TERMUX_PREFIX}/share/doc/${TERMUX_PKG_NAME}"/
 		done
 	else
 		local COUNTER=0
-		for LICENSE in "$(echo $TERMUX_PKG_LICENSE | sed 's/,/ /g')"; do
+		local LICENSE
+		while read -r LICENSE; do
 			if [ -f "$TERMUX_SCRIPTDIR/packages/termux-licenses/LICENSES/${LICENSE}.txt" ]; then
-				if [[ $COUNTER > 0 ]]; then
+				if [[ $COUNTER -gt 0 ]]; then
 					ln -sf "../../LICENSES/${LICENSE}.txt" "$TERMUX_PREFIX/share/doc/$TERMUX_PKG_NAME/LICENSE.${COUNTER}"
 				else
 					ln -sf "../../LICENSES/${LICENSE}.txt" "$TERMUX_PREFIX/share/doc/$TERMUX_PKG_NAME/LICENSE"
 				fi
 			fi
 			COUNTER=$((COUNTER + 1))
+		done < <(echo "$TERMUX_PKG_LICENSE" | sed "s/,/\n/g")
+
+		for LICENSE in "$TERMUX_PREFIX/share/doc/$TERMUX_PKG_NAME"/LICENSE*; do
+			if [ "$LICENSE" = "$TERMUX_PREFIX/share/doc/$TERMUX_PKG_NAME/LICENSE*" ]; then
+				termux_error_exit "No LICENSE file was installed for $TERMUX_PKG_NAME"
+			fi
 		done
-		if [ ! -f $TERMUX_PREFIX/share/doc/$TERMUX_PKG_NAME/LICENSE* ] && [ ! -L $TERMUX_PREFIX/share/doc/$TERMUX_PKG_NAME/LICENSE* ]; then
-			termux_error_exit "No LICENSE file was installed for $TERMUX_PKG_NAME"
-		fi
 	fi
 }