python-xpra: Wno-error some things in cython code

mingw-w64-python-xpra/PKGBUILD

@@ -9,7 +9,7 @@ replaces=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}"
           "${MINGW_PACKAGE_PREFIX}-${_realname}-common")
 provides=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 pkgver=4.2.3
-pkgrel=7
+pkgrel=8
 pkgdesc='Remote access client/server software (mingw-w64)'
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
@@ -72,6 +72,8 @@ prepare() {
 build() {
   msg "Python build for ${MSYSTEM}"
   cd "${srcdir}/python-build-${MSYSTEM}"
+
+  CFLAGS+=" -Wno-error=address"  # triggers gcc 12 error in some auto generated cython code
   ${MINGW_PREFIX}/bin/python setup.py build \
     --without-cuda_kernels --with-data --without-docs --with-modules
 }