Allow libsepol C++ static library on device.

Change-Id: I7da601767c3a4ebed7274e33304d8b589a9115fe
Signed-off-by: Stephen Smalley <[email protected]>
diff --git a/libsepol/include/sepol/policydb/module.h b/libsepol/include/sepol/policydb/module.h
index 10403c8..3fe560c 100644
--- a/libsepol/include/sepol/policydb/module.h
+++ b/libsepol/include/sepol/policydb/module.h
@@ -27,9 +27,12 @@
 
 #include <sepol/policydb/policydb.h>
 #include <sepol/policydb/conditional.h>
+#include <sys/cdefs.h>
 
 #define SEPOL_MODULE_PACKAGE_MAGIC 0xf97cff8f
 
+__BEGIN_DECLS
+
 struct sepol_module_package {
 	sepol_policydb_t *policy;
 	uint32_t version;
@@ -45,4 +48,5 @@
 
 extern int sepol_module_package_init(sepol_module_package_t * p);
 
+__END_DECLS
 #endif