Update MinGW64 for latest upstream headers

scripts.d/10-mingw.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+MINGW_REPO="https://github.com/mirror/mingw-w64.git"
+MINGW_COMMIT="a25dc933f3d3ed6c8529fb24b7ae393f8792ca69"
+
+ffbuild_enabled() {
+    [[ $TARGET == win* ]] || return -1
+    return 0
+}
+
+ffbuild_dockerstage() {
+    to_df "ADD $SELF /stage.sh"
+    to_df "RUN run_stage"
+}
+
+ffbuild_dockerbuild() {
+    git-mini-clone "$MINGW_REPO" "$MINGW_COMMIT" mingw
+    cd mingw/mingw-w64-headers
+
+    unset CFLAGS
+    unset CXXFLAGS
+    unset LDFLAGS
+    unset PKG_CONFIG_LIBDIR
+
+    autoreconf -i
+
+    local myconf=(
+        --prefix="/usr/$FFBUILD_TOOLCHAIN"
+        --host="$FFBUILD_TOOLCHAIN"
+        --enable-idl
+    )
+
+    ./configure "${myconf[@]}" || return -1
+    make -j$(nproc) || return -1
+    make install || return -1
+
+    cd ../mingw-w64-libraries/winpthreads
+
+    autoreconf -i
+
+    local myconf=(
+        --prefix="/usr/$FFBUILD_TOOLCHAIN"
+        --host="$FFBUILD_TOOLCHAIN"
+        --with-pic
+        --disable-shared
+        --enable-static
+    )
+
+    ./configure "${myconf[@]}" || return -1
+    make -j$(nproc) || return -1
+    make install || return -1
+
+    cd ../../..
+    rm -rf mingw
+}