From de06ea449dfca5a3f0a5ad1f5bd91be0225d9d3e Mon Sep 17 00:00:00 2001
From: Thomas Debesse <dev@illwieckz.net>
Date: Mon, 17 Jun 2019 23:33:59 +0200
Subject: [PATCH] bundle: export lib bundling code to a standalone script

---
 CMakeLists.txt  |  6 +++---
 library-bundler | 24 ++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 library-bundler

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4cbf3658..dd247e08 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -216,10 +216,10 @@ if (BUILD_BINARIES)
     macro (copy_dlls target)
         if (BUNDLE_LIBRARIES AND WIN32)
             add_custom_command(TARGET ${target} POST_BUILD
-                COMMAND bash
-                ARGS -c "ldd '$<TARGET_FILE:${target}>' | egrep -i '\\.dll ' | grep -iv '/c/Windows' | awk '{ print $1 }' | while read dll; do dllbasename=\"$(which \"$dll\")\"; [ -f \"${PROJECT_BINARY_DIR}/$dllbasename\" ] || cp --preserve=timestamps \"$dllbasename\" '${PROJECT_BINARY_DIR}'; done"
+                COMMAND "${PROJECT_SOURCE_DIR}/library-bundler"
+                ARGS "windows" "$<TARGET_FILE:${target}>" "${PROJECT_BINARY_DIR}"
                 VERBATIM
-        )
+            )
         endif ()
     endmacro ()
 
diff --git a/library-bundler b/library-bundler
new file mode 100644
index 00000000..b776c532
--- /dev/null
+++ b/library-bundler
@@ -0,0 +1,24 @@
+#! /usr/bin/env bash
+
+system_name="${1}"
+exe_file="${2}"
+bundle_dir="${3}"
+
+case "${system_name}" in
+	'windows')
+		bundle_dir="$(cygpath --unix "${bundle_dir}")"
+		exe_file="$(cygpath --unix "${exe_file}")"
+		ldd "${exe_file}" \
+		| egrep -i '\.dll => /mingw64/' \
+		| sed -e 's/ (0x[0-9a-f]*)$//;s/^.* => //' \
+		| while read dll_file
+		do
+			dll_basename="$(basename "${dll_file}")"
+			cp -n --preserve=timestamps "${dll_file}" "${bundle_dir}/${dll_basename}"
+		done
+		;;
+	*)
+		printf 'ERROR: unsupported system: %s\n' "${system_name}" >&2
+		exit 1
+		;;
+esac
-- 
2.39.2