diff --git a/CHANGES b/CHANGES
index 763cca3c..9b0008db 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,6 +1,8 @@
 ?? ??? 2007 - 2.5.0-trunk
 -------------------------
 
+ * Added ability to compile without an external API (-DNO_MODSEC_API).
+
  * Added "logdata" meta action to allow safe logging of raw transaction data.
 
  * Added TX_SEVERITY that keeps track of the highest severity
diff --git a/apache2/Makefile b/apache2/Makefile
index f66b4483..1a0a3b07 100644
--- a/apache2/Makefile
+++ b/apache2/Makefile
@@ -30,7 +30,8 @@ APACHECTL = apachectl
 INCLUDES = -I /usr/include/libxml2
 #DEFS = -DWITH_LIBXML2
 #DEFS = -DWITH_LIBXML2 -DDEBUG_CONF
-DEFS = -DWITH_LIBXML2 -DCACHE_DEBUG
+#DEFS = -DWITH_LIBXML2 -DCACHE_DEBUG
+DEFS = -DWITH_LIBXML2 -DNO_MODSEC_API
 #LIBS = -Lmy/lib/dir -lmylib
 
 CFLAGS = -O2 -g -Wuninitialized -Wall -Wmissing-prototypes -Wshadow -Wunused-variable -Wunused-value -Wchar-subscripts -Wsign-compare
diff --git a/apache2/apache2.h b/apache2/apache2.h
index 1f3e9571..0ac84ef1 100644
--- a/apache2/apache2.h
+++ b/apache2/apache2.h
@@ -18,6 +18,7 @@
 #include <apr_optional.h>
 
 
+#ifdef NO_MODSEC_API
 /* Optional functions. */
 
 APR_DECLARE_OPTIONAL_FN(void, modsec_register_tfn, (const char *name, void *fn));
@@ -27,6 +28,7 @@ APR_DECLARE_OPTIONAL_FN(void, modsec_register_variable,
      unsigned int argc_min, unsigned int argc_max,
      void *fn_validate, void *fn_generate,
      unsigned int is_cacheable, unsigned int availability));
+#endif
 
 
 /* Configuration functions. */
diff --git a/apache2/mod_security2.c b/apache2/mod_security2.c
index 720f337f..23156d56 100644
--- a/apache2/mod_security2.c
+++ b/apache2/mod_security2.c
@@ -972,6 +972,7 @@ static void hook_insert_error_filter(request_rec *r) {
 }
 #endif
 
+#ifdef NO_MODSEC_API
 /**
  * This function is exported for other Apache modules to
  * register new transformation functions.
@@ -1007,6 +1008,7 @@ static void modsec_register_variable(const char *name, unsigned int type,
         fprintf(stderr,"modsecurity is NULL\n");
     }
 }
+#endif
 
 /**
  * Registers module hooks with Apache.
@@ -1031,10 +1033,12 @@ static void register_hooks(apr_pool_t *mp) {
         NULL
     };
 
+#ifdef NO_MODSEC_API
     /* Export optional functions. */
     APR_REGISTER_OPTIONAL_FN(modsec_register_tfn);
     APR_REGISTER_OPTIONAL_FN(modsec_register_operator);
     APR_REGISTER_OPTIONAL_FN(modsec_register_variable);
+#endif
 
     /* Main hooks */
     ap_hook_pre_config(hook_pre_config, NULL, NULL, APR_HOOK_FIRST);