Index: uspace/app/sysinst/futil.c
===================================================================
--- uspace/app/sysinst/futil.c	(revision f77c1c90c1f223647872d5cefa2d86f63bc846d7)
+++ uspace/app/sysinst/futil.c	(revision 5a6cc679876514e29ac7899053554db66db754d9)
@@ -54,9 +54,9 @@
  * @return EOK on success, EIO on I/O error
  */
-int futil_copy_file(const char *srcp, const char *destp)
+errno_t futil_copy_file(const char *srcp, const char *destp)
 {
 	int sf, df;
 	size_t nr, nw;
-	int rc;
+	errno_t rc;
 	aoff64_t posr = 0, posw = 0;
 
@@ -104,5 +104,5 @@
  * @return EOK on success, ENOMEM if out of memory, EIO on I/O error
  */
-int futil_rcopy_contents(const char *srcdir, const char *destdir)
+errno_t futil_rcopy_contents(const char *srcdir, const char *destdir)
 {
 	DIR *dir;
@@ -110,5 +110,5 @@
 	struct stat s;
 	char *srcp, *destp;
-	int rc;
+	errno_t rc;
 
 	dir = opendir(srcdir);
@@ -158,9 +158,9 @@
  *         I/O error, ENOMEM if out of memory
  */
-int futil_get_file(const char *srcp, void **rdata, size_t *rsize)
+errno_t futil_get_file(const char *srcp, void **rdata, size_t *rsize)
 {
 	int sf;
 	size_t nr;
-	int rc;
+	errno_t rc;
 	size_t fsize;
 	char *data;