Separated the public interfaces of the threading primitives.

src/libstrongswan/plugins/gcrypt/gcrypt_plugin.c

@@ -24,7 +24,7 @@
 
 #include <library.h>
 #include <debug.h>
-#include <threading.h>
+#include <threading/mutex.h>
 
 #include <errno.h>
 #include <gcrypt.h>

src/libstrongswan/plugins/mysql/mysql_database.c

@@ -21,7 +21,7 @@
 #include "mysql_database.h"
 
 #include <debug.h>
-#include <threading.h>
+#include <threading/mutex.h>
 #include <utils/linked_list.h>
 
 /* Older mysql.h headers do not define it, but we need it. It is not returned

src/libstrongswan/plugins/openssl/openssl_plugin.c

@@ -23,7 +23,7 @@
 #include "openssl_plugin.h"
 
 #include <library.h>
-#include <threading.h>
+#include <threading/mutex.h>
 #include "openssl_util.h"
 #include "openssl_crypter.h"
 #include "openssl_hasher.h"

src/libstrongswan/plugins/sqlite/sqlite_database.c

@@ -19,7 +19,7 @@
 #include <unistd.h>
 #include <library.h>
 #include <debug.h>
-#include <threading.h>
+#include <threading/mutex.h>
 
 typedef struct private_sqlite_database_t private_sqlite_database_t;