From 8ac267c8db771bf87111e29f0511b26e145819fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C5=99emysl=20Eric=20Janouch?= <p@janouch.name>
Date: Thu, 21 Oct 2021 19:16:01 +0200
Subject: Figure out how to abuse MSYS2 repositories

In the end, all seems to work fairly well on Windows 10.
---
 Win64Depends.sh | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Win64Depends.sh

(limited to 'Win64Depends.sh')

diff --git a/Win64Depends.sh b/Win64Depends.sh
new file mode 100644
index 0000000..aa0deab
--- /dev/null
+++ b/Win64Depends.sh
@@ -0,0 +1,69 @@
+#!/bin/sh -e
+# Win64Depends.sh: download dependencies from MSYS2 for cross-compilation
+# Dependencies: AWK, sed, cURL, bsdtar, wine64
+repository=https://repo.msys2.org/mingw/mingw64/
+
+status() {
+	echo "$(tput bold)-- $*$(tput sgr0)"
+}
+
+# TODO: Try to verify checksums, it will be relatively low-effort.
+dbsync() {
+	status Fetching repository DB
+	[ -f db.tsv ] || curl -# "$repository/mingw64.db" | bsdtar -xOf- | awk '
+		function flush() { print f["%NAME%"] f["%FILENAME%"] f["%DEPENDS%"] }
+		NR > 1 && $0 == "%FILENAME%" { flush(); for (i in f) delete f[i] }
+		{ if (/^[^%]/) f[field] = f[field] $0 "\t"; else field = $0 }
+		END { flush() }
+	' > db.tsv
+}
+
+fetch() {
+	status Resolving "$@"
+	mkdir -p packages
+	awk -F'\t' 'function get(name,    i, a) {
+		if (visited[name]++ || !(name in filenames)) return
+		print filenames[name]
+		split(deps[name], a)
+		for (i in a) get(a[i])
+	} BEGIN { while ((getline < "db.tsv") > 0) {
+		filenames[$1] = $2; deps[$1] = ""
+		for (i = 3; i <= NF; i++) { gsub(/[<=>].*/, "", $i)
+			deps[$1] = deps[$1] $i FS }
+	} for (i = 0; i < ARGC; i++) get(ARGV[i]) }' "$@" | while IFS= read -r name
+	do
+		status Fetching "$name"
+		[ -f "packages/$name" ] || curl -#o "packages/$name" "$repository/$name"
+	done
+}
+
+extract() {
+	status Extracting packages
+	for subdir in *
+	do [ -d "$subdir" -a "$subdir" != packages ] && rm -rf -- "$subdir"
+	done
+	for i in packages/*
+	do bsdtar -xf "$i" --strip-components 1 mingw64
+	done
+}
+
+configure() {
+	status Configuring packages
+	glib-compile-schemas share/glib-2.0/schemas
+	wine64 bin/gdk-pixbuf-query-loaders.exe \
+		> lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
+
+	# pkgconf has a command line option for this, but CMake can't pass it
+	sed -i "s|^prefix=/mingw64|prefix=$(pwd)|" lib/pkgconfig/*.pc
+}
+
+mkdir -p win32-depends
+cd win32-depends
+dbsync
+fetch mingw-w64-x86_64-gtk3 mingw-w64-x86_64-lua \
+	mingw-w64-x86_64-libwinpthread-git # because we don't do "provides"?
+extract
+configure
+
+# XXX: Why is this override needed to run some GLib-based things under wine64?
+export XDG_DATA_DIRS=$(pwd)/share
-- 
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