diff --git a/Makefile.in b/Makefile.in
index ff9ef0e..1981dbe 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -408,6 +408,7 @@ clean:
 distclean: clean
 	$(RM) Makefile
 	(cd $(LIBBSCDIR); make clean)
+	$(RM_RF) buildtmp
 
 install: $(PROG)
 	@mkdir -p $(DESTDIR)$(PREFIX)/bin
diff --git a/main.c b/main.c
index 499e47e..6f19692 100644
--- a/main.c
+++ b/main.c
@@ -35,7 +35,7 @@
 #include <limits.h>
 #include <unistd.h>
 #include <libgen.h>
-#include <pcompress.h>
+#include "pcompress.h"
 #include <ctype.h>
 #include <utils.h>
 
diff --git a/rabin/global/dedupe_config.h b/rabin/global/dedupe_config.h
index f2c42a3..b4dad9d 100644
--- a/rabin/global/dedupe_config.h
+++ b/rabin/global/dedupe_config.h
@@ -88,7 +88,7 @@ typedef struct {
 	struct seg_map_fd *seg_fd_r; // One read-only fd per thread for mapping in portions of the
 		       // segment metadata cache.
 	int valid;
-	void *dbdata;
+	void *db_index;
 } archive_config_t;
 
 #pragma pack(1)
diff --git a/rabin/global/index.c b/rabin/global/index.c
index ed65813..3e7b926 100644
--- a/rabin/global/index.c
+++ b/rabin/global/index.c
@@ -31,12 +31,12 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <errno.h>
-#include <utils.h>
-#include <allocator.h>
 #include <pthread.h>
-#include <xxhash.h>
 #include <sys/mman.h>
 
+#include "utils/utils.h"
+#include "allocator.h"
+#include "utils/xxhash.h"
 #include "index.h"
 
 /*
@@ -51,6 +51,7 @@ typedef struct {
 	uint64_t memlimit;
 	uint64_t memused;
 	int hash_entry_size, intervals, hash_slots;
+	char *index_file;
 } index_t;
 
 archive_config_t *
@@ -72,6 +73,14 @@ init_global_db(char *configfile)
 	return (cfg);
 }
 
+int
+init_on_disk_index(archive_config_t *cfg)
+{
+        if (file_exists()) {
+
+        }
+}
+
 void
 static cleanup_indx(index_t *indx)
 {
@@ -307,7 +316,7 @@ init_global_db_s(char *path, char *tmppath, uint32_t chunksize, uint64_t user_ch
 		}
 	}
 	cfg->segcache_pos = 0;
-	cfg->dbdata = indx;
+	cfg->db_index = indx;
 	return (cfg);
 }
 
@@ -475,7 +484,7 @@ db_lookup_insert_s(archive_config_t *cfg, uchar_t *sim_cksum, int interval,
 		   uint64_t item_offset, uint32_t item_size, int do_insert)
 {
 	uint32_t htab_entry;
-	index_t *indx = (index_t *)(cfg->dbdata);
+	index_t *indx = (index_t *)(cfg->db_index);
 	hash_entry_t **htab, *ent, **pent;
 
 	assert((cfg->similarity_cksum_sz & (sizeof (size_t) - 1)) == 0);
@@ -549,7 +558,7 @@ void
 destroy_global_db_s(archive_config_t *cfg)
 {
 	int i;
-	index_t *indx = (index_t *)(cfg->dbdata);
+	index_t *indx = (index_t *)(cfg->db_index);
 
 	cleanup_indx(indx);
 	if (cfg->pct_interval > 0) {
diff --git a/rabin/global/index.h b/rabin/global/index.h
index d63bd0c..6cc4abb 100644
--- a/rabin/global/index.h
+++ b/rabin/global/index.h
@@ -41,6 +41,7 @@ typedef struct _hash_entry {
 	uchar_t cksum[1];
 } hash_entry_t;
 
+
 archive_config_t *init_global_db(char *configfile);
 int setup_db_config_s(archive_config_t *cfg, uint32_t chunksize, uint64_t *user_chunk_sz,
 		 int *pct_interval, const char *algo, cksum_t ck, cksum_t ck_sim,
diff --git a/utils/utils.c b/utils/utils.c
index c74eb3e..ca7f47d 100644
--- a/utils/utils.c
+++ b/utils/utils.c
@@ -45,15 +45,15 @@
 #include <xxhash.h>
 #include <pc_archive.h>
 
-#ifndef __APPLE__
-#include <sys/sysinfo.h>
-#else
+#ifdef __APPLE__
 #include <sys/sysctl.h>
 #include <mach/mach.h>
 #include <mach/mach_host.h>
 #include <mach/mach_time.h>
 
 static mach_timebase_info_data_t sTimebaseInfo;
+#else
+#include <sys/sysinfo.h>
 #endif
 
 #define _IN_UTILS_
@@ -637,6 +637,17 @@ is_incompressible(int type)
 	return (ic);
 }
 
+int
+file_exists(char *path)
+{
+	FILE *fh = fopen(path, "r");
+	if (fh != NULL) {
+		fclose(fh);
+		return (1);
+	}
+	return (0);
+}
+
 /************************************************************
  * Portability wrappers for synchronization primitives.
  ***********************************************************/
diff --git a/utils/utils.h b/utils/utils.h
index f9e6135..749be94 100644
--- a/utils/utils.h
+++ b/utils/utils.h
@@ -348,6 +348,7 @@ extern int chk_dir(char *dir);
 extern void init_algo_props(algo_props_t *props);
 extern void init_pcompress();
 extern char *get_temp_dir();
+extern int file_exists(char *path);
 
 /* Pointer type for compress and decompress functions. */
 typedef int (*compress_func_ptr)(void *src, uint64_t srclen, void *dst,