--- diffutils-3.12/lib/cmpbuf.c	2025-01-12 21:27:47.000000000 +0300
+++ diffutils-3.12-new/lib/cmpbuf.c	2026-07-11 01:26:55.996990194 +0300
@@ -84,8 +84,8 @@
              ancient AIX hosts that set errno to EINTR after uncaught
              SIGCONT.  See <news:1r77ojINN85n@ftp.UU.NET>
              (1993-04-22).  */
-          if (! SA_RESTART && errno == EINTR)
-            continue;
+          /*if (! SA_RESTART && errno == EINTR)
+            continue;*/
 
           return -1;
         }
--- diffutils-3.12/lib/getdtablesize.c	2025-01-02 05:33:12.000000000 +0300
+++ diffutils-3.12-new/lib/getdtablesize.c	2026-07-11 01:26:55.997027743 +0300
@@ -109,6 +109,7 @@
 int
 getdtablesize (void)
 {
+#if !defined(__redox__)
   struct rlimit lim;
 
   if (getrlimit (RLIMIT_NOFILE, &lim) == 0
@@ -117,6 +118,7 @@
       && lim.rlim_cur != RLIM_SAVED_CUR
       && lim.rlim_cur != RLIM_SAVED_MAX)
     return lim.rlim_cur;
+#endif
 
   return INT_MAX;
 }
--- diffutils-3.12/lib/getprogname.c	2025-01-02 05:33:12.000000000 +0300
+++ diffutils-3.12-new/lib/getprogname.c	2026-07-11 01:26:55.997103089 +0300
@@ -55,6 +55,14 @@
 # include <string.h>
 #endif
 
+#if defined(__redox__)
+# include <string.h>
+# include <unistd.h>
+# include <stdio.h>
+# include <fcntl.h>
+# include <limits.h>
+#endif
+
 #include "basename-lgpl.h"
 
 #ifndef HAVE_GETPROGNAME  /* not Mac OS X, FreeBSD, NetBSD, OpenBSD >= 5.4, Solaris >= 11, Cygwin, Android API level >= 21 */
@@ -297,6 +305,17 @@
       close (fd);
     }
   return "?";
+# elif defined(__redox__)
+  char filename[PATH_MAX];
+  int fd = open ("sys:exe", O_RDONLY);
+  if (fd > 0) {
+    int len = read(fd, filename, PATH_MAX-1);
+    if (len > 0) {
+       filename[len] = '\x00';
+       return strdup(filename);
+    }
+  }
+  return "?";
 # else
 #  error "getprogname module not ported to this OS"
 # endif
--- diffutils-3.12/lib/sigprocmask.c	2025-01-02 05:33:12.000000000 +0300
+++ diffutils-3.12-new/lib/sigprocmask.c	2026-07-11 01:26:55.997143937 +0300
@@ -126,6 +126,7 @@
     return 0;
 }
 
+#if !defined(__redox__)
 int
 sigemptyset (sigset_t *set)
 {