#include "cache.h"
 #include "diff.h"
 #include "diffcore.h"
-#include "delta.h"
 
 struct path_spec {
        const char *spec;
        namelen = strlen(name);
        for (i = 0; i < cnt; i++) {
                int len = s[i].len;
-               if (! strncmp(s[i].spec, name, len) &&
-                   len <= namelen &&
-                   (name[len] == 0 || name[len] == '/'))
+               if (namelen < len)
+                       continue;
+               if (memcmp(s[i].spec, name, len))
+                       continue;
+               if (s[i].spec[len-1] == '/' ||
+                   name[len] == 0 ||
+                   name[len] == '/')
+                       return 1;
+               if (!len)
                        return 1;
        }
        return 0;
        for (i = 0; pathspec[i]; i++)
                ;
        speccnt = i;
+       if (!speccnt)
+               return;
+
        spec = xmalloc(sizeof(*spec) * speccnt);
        for (i = 0; pathspec[i]; i++) {
                spec[i].spec = pathspec[i];
 
        for (i = 0; i < q->nr; i++) {
                struct diff_filepair *p = q->queue[i];
-               if (matches_pathspec(p->one->path, spec, speccnt) ||
-                   matches_pathspec(p->two->path, spec, speccnt))
+               if (matches_pathspec(p->two->path, spec, speccnt))
                        diff_q(&outq, p);
                else
-                       free(p);
+                       diff_free_filepair(p);
        }
        free(q->queue);
        *q = outq;