selinux-python: fix cross-compilation, add test.sh

Add --no-build-isolation to PYTHON_SETUP_ARGS. Without it, pip creates
an isolated build environment which fails during cross-compilation
because _sysconfigdata is missing for the target arch.

Add test.sh verifying python3-sepolgen module loads correctly and
selinux-audit2allow binary is functional.

Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>

utils/selinux-python/Makefile

@@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=selinux-python
 PKG_VERSION:=3.9
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/SELinuxProject/selinux/releases/download/$(PKG_VERSION)
@@ -55,7 +55,7 @@ endef
 MAKE_VARS = \
 	$(PYTHON3_VARS) \
 	$(HOST_PYTHON3_PIP_VARS) \
-	PYTHON_SETUP_ARGS=--no-compile
+	PYTHON_SETUP_ARGS="--no-compile --no-build-isolation"
 
 define Build/Compile
 	$(call Build/Compile/Default,all)

utils/selinux-python/test.sh

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+case "$1" in
+python3-sepolgen)
+	python3 - <<'EOF'
+import sepolgen.interfaces as iface
+import sepolgen.policygen as pg
+import sepolgen.access as access
+
+# Verify core classes are importable
+assert hasattr(iface, 'InterfaceSet'), "InterfaceSet missing"
+assert hasattr(pg, 'PolicyGenerator'), "PolicyGenerator missing"
+assert hasattr(access, 'AccessVector'), "AccessVector missing"
+
+# Basic AccessVector construction
+av = access.AccessVector()
+av.src_type = "httpd_t"
+av.tgt_type = "var_log_t"
+av.obj_class = "file"
+av.perms.add("write")
+assert "write" in av.perms
+
+print("python3-sepolgen OK")
+EOF
+	;;
+python3-seobject)
+	python3 - <<'EOF'
+import seobject
+
+# Verify key record types are available (no SELinux system required)
+assert hasattr(seobject, 'portRecords'), "portRecords missing"
+assert hasattr(seobject, 'fcontextRecords'), "fcontextRecords missing"
+assert hasattr(seobject, 'booleanRecords'), "booleanRecords missing"
+assert hasattr(seobject, 'seluserRecords'), "seluserRecords missing"
+
+print("python3-seobject OK")
+EOF
+	;;
+*)
+	exit 0
+	;;
+esac