fixdep: suppress consecutive / from file paths in dependency list files

Underscores in symbol names are translated into slashes for path names.
Filesystems treat consecutive slashes as if there was only one, so
let's do the same in the dependency list for easier grepping, etc.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

scripts/basic/fixdep.c

@@ -115,7 +115,7 @@ static void usage(void)
  */
 static void print_dep(const char *m, int slen, const char *dir)
 {
-	int c, i;
+	int c, prev_c = '/', i;
 
 	printf("    $(wildcard %s/", dir);
 	for (i = 0; i < slen; i++) {
@@ -124,7 +124,9 @@ static void print_dep(const char *m, int slen, const char *dir)
 			c = '/';
 		else
 			c = tolower(c);
-		putchar(c);
+		if (c != '/' || prev_c != '/')
+			putchar(c);
+		prev_c = c;
 	}
 	printf(".h) \\\n");
 }