diff --git a/d1x-rebirth/include/strutil.h b/common/include/strutil.h
similarity index 100%
rename from d1x-rebirth/include/strutil.h
rename to common/include/strutil.h
diff --git a/d2x-rebirth/include/strutil.h b/d2x-rebirth/include/strutil.h
deleted file mode 100644
index 3e942a489..000000000
--- a/d2x-rebirth/include/strutil.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#ifndef _STRUTILS_H
-#define _STRUTILS_H
-
-#if defined(macintosh)
-extern void snprintf(char *out_string, int size, char * format, ... );
-#endif
-extern int d_stricmp( const char *s1, const char *s2 );
-extern int d_strnicmp( const char *s1, const char *s2, int n );
-extern void d_strlwr( char *s1 );
-extern void d_strupr( char *s1 );
-extern void d_strrev( char *s1 );
-extern char *d_strdup(char *str);
-
-// remove extension from filename, doesn't work with paths.
-void removeext(const char *filename, char *out);
-
-//give a filename a new extension, doesn't work with paths with no extension already there
-extern void change_filename_extension( char *dest, const char *src, char *new_ext );
-
-extern void d_splitpath(char *name, char *drive, char *path, char *base, char *ext);
-
-// create a growing 2D array with a single growing buffer for the text
-// this system is likely to cause less memory fragmentation than having one malloc'd buffer per string
-int string_array_new(char ***list, char **list_buf, int *num_str, int *max_str, int *max_buf);
-
-// add a string to a growing 2D array
-int string_array_add(char ***list, char **list_buf, int *num_str, int *max_str, int *max_buf, const char *str);
-
-// sort function passed to qsort - also useful for 2d string arrays with individual string pointers 
-int string_array_sort_func(char **e0, char **e1);
-
-// reallocate pointers to save memory, sort list alphabetically and remove duplicates according to 'comp'
-void string_array_tidy(char ***list, char **list_buf, int *num_str, int *max_str, int *max_buf, int offset, int (*comp)( const char *, const char * ));
-
-#endif /* _STRUTILS_H */