python-bsddb3: don't set runtime_library_dirs

Not supported on Windows

In our stdlib distutils it will end up using rpath, which clang errors out on,
and in upstream distutils there is a PR pending making it a proper error:
https://github.com/pypa/distutils/pull/150

mingw-w64-python-bsddb3/PKGBUILD

@@ -7,7 +7,7 @@ provides=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 conflicts=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 replaces=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 pkgver=6.2.9
-pkgrel=3
+pkgrel=4
 pkgdesc="Python bindings for Oracle Berkeley DB (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
@@ -18,14 +18,17 @@ depends=("${MINGW_PACKAGE_PREFIX}-python"
 makedepends=("${MINGW_PACKAGE_PREFIX}-python3-setuptools" "${MINGW_PACKAGE_PREFIX}-cc")
 options=('staticlibs' 'strip' '!debug')
 source=("https://pypi.python.org/packages/source/b/bsddb3/${_realname}-${pkgver}.tar.gz"
-        db-6.0-support.patch)
+        db-6.0-support.patch
+        unsupported-runtime-dirs.patch)
 sha256sums=('70d05ec8dc568f42e70fc919a442e0daadc2a905a1cfb7ca77f549d49d6e7801'
-            'b96b05360f9a86af62e4c644be0fffc368f755d89ce14e23a93a75442c570cd6')
+            'b96b05360f9a86af62e4c644be0fffc368f755d89ce14e23a93a75442c570cd6'
+            '1f686654150ff23c485c34a63d664d537e4ac47316e1f0ef74a9644e27d77442')
 
 prepare() {
   plain "Patching setup files ..."
   cd "${srcdir}/${_realname}-${pkgver}"
   patch -p1 -i ${srcdir}/db-6.0-support.patch
+  patch -p1 -i ${srcdir}/unsupported-runtime-dirs.patch
 
   sed -i -e "s|if os.name == 'posix':|if os.name == 'nt':|g" setup{2,3}.py
   sed -i -e "s|elif os.name == 'nt':|elif os.name == 'FOO':|g" setup{2,3}.py

mingw-w64-python-bsddb3/unsupported-runtime-dirs.patch

@@ -0,0 +1,10 @@
+--- bsddb3-6.2.9/setup3.py.orig	2022-06-12 09:37:28.978102500 +0200
++++ bsddb3-6.2.9/setup3.py	2022-06-12 10:00:04.408752300 +0200
+@@ -539,7 +539,6 @@
+                                depends = ['Modules/bsddb.h'],
+                                include_dirs = [ incdir ],
+                                library_dirs = [ libdir ],
+-                               runtime_library_dirs = [ libdir ],
+                                libraries = libname,
+                                extra_link_args = lflags_arg,
+                                )],