diff --git a/core/Makefile b/core/Makefile
index a258e45..69a58dd 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1,4 +1,10 @@
-OBJS = pc_core.o
+
+
+
+OBJS = 	pc_core.o \
+		pc_mem.o
+
+
 LIB = pc_lib.a
 
 all: $(LIB)
diff --git a/core/pc_api.h b/core/pc_api.h
index c0f82dc..e8f8dc7 100644
--- a/core/pc_api.h
+++ b/core/pc_api.h
@@ -7,6 +7,9 @@
 *
 ***********************************************************************/
 
+#include <stdio.h>
+#include <stdlib.h>
+
 /**********************************************************************
 * DATA STRUCTURES
 */
@@ -108,17 +111,37 @@ typedef struct
 	PCDIMENSION *dims;
 } PCSCHEMA;
 
-
+/* Global functions for memory/logging handlers. */
+typedef void* (*pc_allocator)(size_t size);
+typedef void* (*pc_reallocator)(void *mem, size_t size);
+typedef void  (*pc_deallocator)(void *mem);
+typedef void  (*pc_message_handler)(const char *string, va_list ap);
 
 /**********************************************************************
-* FUNTION PROTOTYPES
+* FUNCTION PROTOTYPES
 */
 
+/* Memory management and logging */
+void* pcalloc(size_t size);
+void* pcrealloc(void* mem, size_t size);
+void  pcfree(void* mem);
+void  pcerror(const char *fmt, ...);
+void  pcinfo(const char *fmt, ...);
+void  pcwarn(const char *fmt, ...);
+
+/* Set allocators and messaging */
+void pc_set_handlers(pc_allocator allocator, pc_reallocator reallocator,
+                     pc_deallocator deallocator, pc_message_handler error_handler,
+                     pc_message_handler info_handler, pc_message_handler warning_handler);
+
+/* Use system allocators and messaging */
+void pc_install_default_handlers(void);
+
+
 /* Utility */
 void pc_schema_free(PCSCHEMA *pcf);
 PCSCHEMA* pc_schema_construct(const char *xmlstr);
 
-
 /* Accessors */
 int8   pc_point_get_int8   (const PCPOINT *pt, uint32 dim);
 uint8  pc_point_get_uint8  (const PCPOINT *pt, uint32 dim);
diff --git a/core/pc_c.h b/core/pc_c.h
index af5d789..7c57163 100644
--- a/core/pc_c.h
+++ b/core/pc_c.h
@@ -15,4 +15,4 @@ typedef long int int64;
 #endif
 #ifndef HAVE_UINT64
 typedef unsigned long int uint64;
-#endif
+#endif
\ No newline at end of file
diff --git a/core/pc_core.c b/core/pc_core.c
index 2855b83..6a790c9 100644
--- a/core/pc_core.c
+++ b/core/pc_core.c
@@ -9,3 +9,5 @@
 
 #include "pc_c.h"
 #include "pc_api.h"
+
+