diff -ruN guile-3.0.10.orig/libguile/vm.c guile-3.0.10/libguile/vm.c
--- guile-3.0.10.orig/libguile/vm.c	2023-05-07 07:50:11.000000000 +0000
+++ guile-3.0.10/libguile/vm.c	2026-01-18 02:36:05.072484350 +0000
@@ -648,7 +648,12 @@
       int ret = 0;
 
       do
+
+#ifdef HAVE_MADVISE
         ret = madvise ((void *) lo, hi - lo, MADV_DONTNEED);
+#else
+        ret = 0; // No-op on Windows
+#endif
       while (ret && errno == EAGAIN);
 
       /* If the OS doesn't implement 'madvise' (as is currently the case