diff --git a/include/asterisk/lock.h b/include/asterisk/lock.h
index 5d6ef43bba..36c25a87d1 100644
--- a/include/asterisk/lock.h
+++ b/include/asterisk/lock.h
@@ -148,18 +148,31 @@ enum ast_lock_type {
  * lock info struct.  The lock is marked as pending as the thread is waiting
  * on the lock.  ast_mark_lock_acquired() will mark it as held by this thread.
  */
+#if !defined(LOW_MEMORY)
 void ast_store_lock_info(enum ast_lock_type type, const char *filename,
 	int line_num, const char *func, const char *lock_name, void *lock_addr);
+#else
+#define ast_store_lock_info(I,DONT,CARE,ABOUT,THE,PARAMETERS)
+#endif
+
 
 /*!
  * \brief Mark the last lock as acquired
  */
+#if !defined(LOW_MEMORY)
 void ast_mark_lock_acquired(void *lock_addr);
+#else
+#define ast_mark_lock_acquired(ignore)
+#endif
 
 /*!
  * \brief Mark the last lock as failed (trylock)
  */
+#if !defined(LOW_MEMORY)
 void ast_mark_lock_failed(void *lock_addr);
+#else
+#define ast_mark_lock_failed(ignore)
+#endif
 
 /*!
  * \brief remove lock info for the current thread
@@ -167,7 +180,11 @@ void ast_mark_lock_failed(void *lock_addr);
  * this gets called by ast_mutex_unlock so that information on the lock can
  * be removed from the current thread's lock info struct.
  */
+#if !defined(LOW_MEMORY)
 void ast_remove_lock_info(void *lock_addr);
+#else
+#define ast_remove_lock_info(ignore)
+#endif
 
 static void __attribute__((constructor)) init_empty_mutex(void)
 {
diff --git a/main/manager.c b/main/manager.c
index 5be4cec1cf..e8b369eeb3 100644
--- a/main/manager.c
+++ b/main/manager.c
@@ -2556,7 +2556,9 @@ static int manager_modulecheck(struct mansession *s, const struct message *m)
 	const char *module = astman_get_header(m, "Module");
 	const char *id = astman_get_header(m, "ActionID");
 	char idText[256];
+#if !defined(LOW_MEMORY)
 	const char *version;
+#endif
 	char filename[PATH_MAX];
 	char *cut;
 
@@ -2575,14 +2577,18 @@ static int manager_modulecheck(struct mansession *s, const struct message *m)
 	}
 	snprintf(cut, (sizeof(filename) - strlen(filename)) - 1, ".c");
 	ast_log(LOG_DEBUG, "**** ModuleCheck .c file %s\n", filename);
+#if !defined(LOW_MEMORY)
 	version = ast_file_version_find(filename);
+#endif
 
 	if (!ast_strlen_zero(id))
 		snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
 	else
 		idText[0] = '\0';
 	astman_append(s, "Response: Success\r\n%s", idText);
+#if !defined(LOW_MEMORY)
 	astman_append(s, "Version: %s\r\n\r\n", version ? version : "");
+#endif
 	return 0;
 }
 
diff --git a/main/utils.c b/main/utils.c
index 42fbb0a7a9..a55620ee34 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -1568,7 +1568,9 @@ int ast_utils_init(void)
 #endif
 	base64_init();
 #ifdef DEBUG_THREADS
+#if !defined(LOW_MEMORY)
 	ast_cli_register_multiple(utils_cli, sizeof(utils_cli) / sizeof(utils_cli[0]));
+#endif
 #endif
 	return 0;
 }
diff --git a/utils/Makefile b/utils/Makefile
index 444e574eca..99db911e0f 100644
--- a/utils/Makefile
+++ b/utils/Makefile
@@ -80,7 +80,7 @@ clean:
 
 md5.c: $(ASTTOPDIR)/main/md5.c
 	@cp $< $@
-
+astman.o: astman.i
 astman: astman.o md5.o
 astman: LIBS+=$(NEWT_LIB)
 
diff --git a/utils/ael_main.c b/utils/ael_main.c
index 7f20365f3a..66d43175c5 100644
--- a/utils/ael_main.c
+++ b/utils/ael_main.c
@@ -165,14 +165,17 @@ struct ast_custom_function *ast_custom_function_find(const char *name)
 	return 0; /* in "standalone" mode, functions are just not avail */
 }
 
+void ast_register_file_version(const char *file, const char *version);
 void ast_register_file_version(const char *file, const char *version)
 {
 }
 
+void ast_unregister_file_version(const char *file);
 void ast_unregister_file_version(const char *file)
 {
 }
 
+#if !defined(LOW_MEMORY)
 int ast_add_profile(const char *x, uint64_t scale)
 {
 	if (!no_comp)
@@ -180,6 +183,7 @@ int ast_add_profile(const char *x, uint64_t scale)
 
 	return 0;
 }
+#endif
 
 int ast_loader_register(int (*updater)(void))
 {
@@ -582,3 +586,4 @@ int main(int argc, char **argv)
 	
     return 0;
 }
+
diff --git a/utils/astman.c b/utils/astman.c
index 2a45085890..f674105a52 100644
--- a/utils/astman.c
+++ b/utils/astman.c
@@ -92,6 +92,7 @@ void ast_unregister_file_version(const char *file)
 {
 }
 
+#if !defined(LOW_MEMORY)
 int ast_add_profile(const char *, uint64_t scale);
 int ast_add_profile(const char *s, uint64_t scale)
 {
@@ -108,6 +109,7 @@ int64_t ast_mark(int key, int start1_stop0)
 {
 	return 0;
 }
+#endif /* LOW_MEMORY */
 
 /* end of dummy functions */
 
diff --git a/utils/check_expr.c b/utils/check_expr.c
index 260fd4e2e3..7b013f1636 100644
--- a/utils/check_expr.c
+++ b/utils/check_expr.c
@@ -85,6 +85,7 @@ enum ast_lock_type {
 	        AST_WRLOCK,
 };
 #endif
+#if !defined(LOW_MEMORY)
 void ast_store_lock_info(enum ast_lock_type type, const char *filename,
 		        int line_num, const char *func, const char *lock_name, void *lock_addr);
 void ast_store_lock_info(enum ast_lock_type type, const char *filename,
@@ -104,6 +105,7 @@ void ast_remove_lock_info(void *lock_addr)
 {
     /* not a lot to do in a standalone w/o threading! */
 }
+#endif
 
 static int global_lineno = 1;
 static int global_expr_count=0;
@@ -145,9 +147,11 @@ unsigned int check_expr(char* buffer, char* error_report);
 int check_eval(char *buffer, char *error_report);
 void parse_file(const char *fname);
 
+void ast_register_file_version(const char *file, const char *version);  
 void ast_register_file_version(const char *file, const char *version) { }
+#if !defined(LOW_MEMORY)
 int ast_add_profile(const char *x, uint64_t scale) { return 0;} 
-
+#endif
 int ast_atomic_fetchadd_int_slow(volatile int *p, int v)
 {
         int ret;
@@ -156,6 +160,7 @@ int ast_atomic_fetchadd_int_slow(volatile int *p, int v)
         return ret;
 }
 
+void ast_unregister_file_version(const char *file);
 void ast_unregister_file_version(const char *file)
 {
 }
diff --git a/utils/conf2ael.c b/utils/conf2ael.c
index fa6a3ccdb9..02d28af0df 100644
--- a/utils/conf2ael.c
+++ b/utils/conf2ael.c
@@ -76,15 +76,18 @@ char ast_config_AST_SYSTEM_NAME[20] = ""; */
 /* static AST_RWLIST_HEAD_STATIC(acf_root, ast_custom_function); */
 //extern char ast_config_AST_CONFIG_DIR[PATH_MAX];
 
+void ast_register_file_version(const char *file, const char *version);
 void ast_register_file_version(const char *file, const char *version)
 {
 }
 
+void ast_unregister_file_version(const char *file);
 void ast_unregister_file_version(const char *file)
 {
 }
+#if !defined(LOW_MEMORY)
 int ast_add_profile(const char *x, uint64_t scale) { return 0;}
-
+#endif
 /* Our own version of ast_log, since the expr parser uses it. -- stolen from utils/check_expr.c */
 void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) __attribute__ ((format (printf,5,6)));
 
diff --git a/utils/hashtest.c b/utils/hashtest.c
index e1780791fb..bce9d8c2e4 100644
--- a/utils/hashtest.c
+++ b/utils/hashtest.c
@@ -43,11 +43,12 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 int testno = 1;
 
 /* stuff we need to make this work with the hashtab stuff */
-
+#if !defined(LOW_MEMORY)
 int64_t ast_mark(int prof_id, int x)
 {
 	return 0;
 }
+#endif
 
 struct ht_element 
 {
@@ -299,11 +300,12 @@ int main(int argc,char **argv)
 	
 	return 0;
 }
-
+#if !defined(LOW_MEMORY)
 int  ast_add_profile(const char *x, uint64_t scale)
 {
 	return 0;
 }
+#endif
 
 int ast_loader_register(int (*updater)(void))
 {
@@ -323,10 +325,12 @@ void ast_module_unregister(const struct ast_module_info *x)
 }
 
 
+void ast_register_file_version(const char *file, const char *version);
 void ast_register_file_version(const char *file, const char *version)
 {
 }
 
+void ast_unregister_file_version(const char *file);
 void ast_unregister_file_version(const char *file)
 {
 
diff --git a/utils/hashtest2.c b/utils/hashtest2.c
index 0fe10ab758..aa81719b60 100644
--- a/utils/hashtest2.c
+++ b/utils/hashtest2.c
@@ -45,11 +45,12 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 int testno = 2;
 
 /* stuff we need to make this work with the astobj2 stuff */
-
+#if !defined(LOW_MEMORY)
 int64_t ast_mark(int prof_id, int x)
 {
 	return 0;
 }
+#endif
 
 /* my OBJECT */
 struct ht_element 
@@ -311,11 +312,12 @@ int main(int argc,char **argv)
 	return 0;
 }
 
-
+#if !defined(LOW_MEMORY)
 int ast_add_profile(const char *x, uint64_t scale)
 {
 	return 0;
 }
+#endif
 
 int ast_loader_register(int (*updater)(void))
 {
@@ -335,10 +337,12 @@ void ast_module_unregister(const struct ast_module_info *x)
 }
 
 
+void ast_register_file_version(const char *file, const char *version);
 void ast_register_file_version(const char *file, const char *version)
 {
 }
 
+void ast_unregister_file_version(const char *file);
 void ast_unregister_file_version(const char *file)
 {