Include dllbundler for easier/automated packaging

Copied by permission from the quake2world project.

win32/dllbundler.sh

@@ -0,0 +1,98 @@
+#!/bin/bash -e
+#
+# Scans an executable for runtime dependencies and copies them to the
+# executable's directory. This script relies on the mingw-objdump tool to
+# parse dependencies. It processes all input recursively.
+#
+# Copied by permission from:
+# https://github.com/jdolan/quake2world/blob/master/mingw-cross/dllbundler.sh
+#
+# Licensed under the GPLv2
+
+while getopts "h:" opt; do
+	case "${opt}" in
+		h)
+			host="${OPTARG}"
+			;;
+		\?)
+			echo "Invalid option: -${OPTARG}" >&2
+			exit 1
+			;;
+	esac
+done
+
+test "${host}" || {
+	echo "Required option -h host is missing" >&2
+	exit 1
+}
+
+objdump=$(which ${host}-objdump)
+test -x "${objdump}" || {
+	echo "No ${host}-objdump in PATH" >&2
+	exit 2
+}
+
+shift $((OPTIND-1))
+
+exes="${@}"
+for exe in ${exes}; do
+	test -e "${exe}" || {
+		echo "${exe} is not an executable" >&2
+		exit 3
+	}
+
+	dir=$(dirname "${exe}")
+	test -w "${dir}" || {
+		echo "${dir} is not writable" >&2
+		exit 3
+	}
+
+	# Clean up ${dir} bedore copying .dll files
+	pushd ${dir}
+	rm -f $(find . -type f | egrep -v "cygwin|*.exe")
+	popd
+done
+
+tmp=$(mktemp -d /tmp/dllbundler-XXXXXX)
+test -w "${tmp}" || {
+	echo "${tmp} is not writable" >&2
+	exit 4
+}
+
+search_path="${MINGW_PREFIX}/usr/${host}"
+test -d "${search_path}" || {
+	echo "${search_path} does not exist" >&2
+	exit 5
+}
+
+
+#
+# Resolve dependencies recursively, copying them from the search path to dir.
+#
+function bundle_recursively(){
+	local deps=$($objdump -p "${1}" | sed -rn 's/DLL Name: (.*\.dll)/\1/p' | sort -u)
+	for dep in ${deps}; do
+		test -f "${dir}/${dep}" && continue
+		test -f "${tmp}/${dep}" && continue
+
+		local dll=$(find "${search_path}" -name "${dep}")
+		test -z "${dll}" && {
+			echo "WARNING: Couldn't find ${dep} in ${search_path}" >&2
+			touch "${tmp}/${dep}"
+			continue
+		}
+
+		bundle_recursively "${dll}"
+
+		echo "Installing ${dll}.."
+		install "${dll}" "${dir}"
+	done
+}
+
+for exe in ${exes}; do
+    dir=$(dirname "${exe}")
+    echo "Bundling .dll files for ${exe} in ${dir}.."
+	bundle_recursively "${exe}"
+done
+
+rm -rf "${tmp}"