Hi mentor!

I am now in the process of packaging a package, but there are some
unknown issues for me.:(

The upstream project is here: https://gitee.com/wine-ce/wine-ce.

The project needs extra two vendor modules to work. From 'Build From
Source' section, we  can see:
```
cd wine
i386_CC="clang -fuse-ld=lld --target=i686-pc-windows" \
x86_64_CC="clang -fuse-ld=lld --target=x86_64-pc-windows" \
x86_64_UNIX_CC="clang -fuse-ld=lld --target=x86_64-pc-linux
--sysroot=/usr/x86_64-linux-gnu/
-L/usr/lib/gcc-cross/x86_64-linux-gnu/12/" \
aarch64_CC="clang -fuse-ld=lld --target=aarch64-pc-windows" \
aarch64_UNIX_CC="clang -fuse-ld=lld --target=aarch64-pc-linux
--sysroot=/usr/aarch64-linux-gnu/
-L/usr/lib/gcc-cross/aarch64-linux-gnu/12/" \
./configure --prefix=/opt/wine-ce --disable-tests
--enable-archs=i386,x86_64,aarch64

make -j6
sudo make install

cd ..
```
And
```
mkdir build.qemu
cd build.qemu

CC=gcc CC_FOR_BUILD="$CC" CXX="$CC" HOST_CC="$CC"
LDFLAGS="-Wl,-Ttext-segment=0x100000000 -Wl,-z,max-page-size=0x1000
-Wl,-Bstatic,-lglib-2.0 -Wl,-Bdynamic" ../qemu/configure
--without-default-features --disable-fdt --disable-system
--enable-ca11c0de --disable-rcu --meson=meson
--target-list=x86_64-linux-user,aarch64-linux-user

ninja -j6
cd ..
```
This is a multi build system and need to configure it before build.
There is my d/rules:
```
#!/usr/bin/make -f
export DH_VERBOSE = 1
export DEB_BUILD_MAINT_OPTIONS=hardening=+all

DEB_WINE_DIR=$(CURDIR)/debian/wine-ce/usr
DEB_QEMU_DIR=$(CURDIR)/debian/build_qemu
PE_ARCHES="i386 aarch64 x86_64"

CONFIG_PRE=i386_CC="clang -fuse-ld=lld --target=i686-pc-windows"  \
           aarch64_CC="clang -fuse-ld=lld --target=aarch64-pc-windows" \
           aarch64_UNIX_CC="clang -fuse-ld=lld
--target=aarch64-pc-linux --sysroot=/usr/aarch64-linux-gnu/
-L/usr/lib/gcc-cross/aarch64-linux-gnu/12/" \
           x86_64_CC="clang -fuse-ld=lld --target=x86_64-pc-windows" \
           x86_64_UNIX_CC="clang -fuse-ld=lld --target=x86_64-pc-linux
--sysroot=/usr/x86_64-linux-gnu/
-L/usr/lib/gcc-cross/x86_64-linux-gnu/12/"


%:
        dh $@
override_dh_autoreconf:

override_dh_auto_configure:
        cd $(CURDIR)/wine && echo $(CONFIG_PRE) && ./configure
--prefix="$(DEB_WINE_DIR)" --disable-tests --enable-archs=$(PE_ARCHES)

override_dh_auto_build:
        cd $(CURDIR)/wine && $(MAKE) -j$(shell nproc)
        mkdir -p $(DEB_QEMU_DIR) && cd $(DEB_QEMU_DIR) && CC=gcc
CC_FOR_BUILD="$CC" CXX="$CC" HOST_CC="$CC" \
                LDFLAGS="-Wl,-Ttext-segment=0x100000000 \
                -Wl,-z,max-page-size=0x1000 -Wl,-Bstatic,-lglib-2.0
-Wl,-Bdynamic" $(CURDIR)/qemu/configure --without-default-features \
                --disable-fdt --disable-system --enable-ca11c0de
--disable-rcu --meson=meson \
                --target-list=x86_64-linux-user,aarch64-linux-user &&
ninja -j$(shell nproc)

override_dh_auto_install:
        cd $(CURDIR)/wine && $(MAKE) install

execute_after_dh_install:
        strip $(DEB_QEMU_DIR)/qemu-x86_64 -o $(DEB_WINE_DIR)/bin/qemu-x86_64
        strip $(DEB_QEMU_DIR)/qemu-aarch64 -o $(DEB_WINE_DIR)/bin/qemu-aarch64
        cd $(CURDIR) && chmod +x generate_scripts.sh &&
./generate_scripts.sh  $(DEB_WINE_DIR)/bin/

override_dh_makeshlibs:
        # avoid unnecessary calls to ldconfig
        dh_makeshlibs -n

override_dh_auto_clean:
        rm -rf $(DEB_QEMU_DIR)
        rm -rf $(DEB_WINE_DIR)
```
The package can be built with the d/rules but is somewhat incorrect.
The problem is with `override_dh_auto_configure`.
In upstream, compiler options and the `configure` command are one
part, it works by hand to configure it simulated.
But  aarch64_CC and aarch64_UNIX_CC cannot be recognized by the build
system of wine.

I know the d/rules is very terrible and this needs to be improved but
it should it works I think.
Any help will be appreciated.

BR,
Bo

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