--- OLD/cache.h	Thu Jan  1 00:00:00 1970
+++ NEW/cache.h	Thu Jan  1 00:00:00 1970
@@ -681,6 +681,7 @@
 /* Convert to/from hex/sha1 representation */
 #define MINIMUM_ABBREV 4
 #define DEFAULT_ABBREV 7
+extern int abbrev_length;
 
 extern int get_sha1(const char *str, unsigned char *sha1);
 extern int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode);
@@ -895,6 +896,7 @@
 extern int git_config_global(void);
 extern int config_error_nonbool(const char *);
 extern const char *config_exclusive_filename;
+extern char *env_home(void);
 
 #define MAX_GITNAME (1000)
 extern char git_default_email[MAX_GITNAME];