mmap: Add missing function declaration

[Andrew Talbot]

This patch adds a function prototype for libs/wine/mmap.c:mmap_init().

Changelog:
    Add missing function declaration

diff -urN a/include/wine/library.h b/include/wine/library.h
--- a/include/wine/library.h	2006-03-16 20:41:45.000000000 +0000
+++ b/include/wine/library.h	2006-05-18 18:54:21.000000000 +0100
@@ -67,6 +67,7 @@
 
 /* memory mappings */
 
+extern void mmap_init(void);
 extern void *wine_anon_mmap( void *start, size_t size, int prot, int flags );
 extern void wine_mmap_add_reserved_area( void *addr, size_t size );
 extern void wine_mmap_remove_reserved_area( void *addr, size_t size, int unmap );