diff --git a/libs/data.sld b/libs/data.sld
index ab781cd..b5e7901 100644
--- a/libs/data.sld
+++ b/libs/data.sld
@@ -45,14 +45,14 @@
         (chicken
           (type . compiler)
           (library-command . ,(lambda (library-file prepend-directories append-directories r6rs?)
-                                (let ((unit (string-append (if (string-starts-with? library-file "srfi")
+                                (let ((unit (string-append (if #f ;(string-starts-with? library-file "srfi")
                                                              (string-replace (string-cut-from-end library-file 4) #\/ #\-)
                                                              (string-replace (string-cut-from-end library-file 4) #\/ #\.))))
-                                      (out (string-append (if (string-starts-with? library-file "srfi")
+                                      (out (string-append (if #f ;(string-starts-with? library-file "srfi")
                                                             (string-replace (string-cut-from-end library-file 4) #\/ #\-)
                                                             (string-replace (string-cut-from-end library-file 4) #\/ #\.))
                                                           ".o"))
-                                      (static-out (string-append (if (string-starts-with? library-file "srfi")
+                                      (static-out (string-append (if #f ;(string-starts-with? library-file "srfi")
                                                             (string-replace (string-cut-from-end library-file 4) #\/ #\-)
                                                             (string-replace (string-cut-from-end library-file 4) #\/ #\.))
                                                           ".a")))