diff --git a/include/os.h b/include/os.h
index 29c849b11..fef7a1719 100644
--- a/include/os.h
+++ b/include/os.h
@@ -332,8 +332,6 @@ OsAbort(void)
     _X_NORETURN;
 
 #if !defined(WIN32)
-extern _X_EXPORT int
-System(const char *);
 extern _X_EXPORT void *
 Popen(const char *, const char *);
 extern _X_EXPORT int
diff --git a/os/utils.c b/os/utils.c
index ba8ebf97a..dc3fdef82 100644
--- a/os/utils.c
+++ b/os/utils.c
@@ -1297,49 +1297,6 @@ OsAbort(void)
  * as well.  As it is now, xkbcomp messages don't end up in the log file.
  */
 
-int
-System(const char *command)
-{
-    int pid, p;
-    void (*csig) (int);
-    int status;
-
-    if (!command)
-        return 1;
-
-    csig = OsSignal(SIGCHLD, SIG_DFL);
-    if (csig == SIG_ERR) {
-        perror("signal");
-        return -1;
-    }
-    DebugF("System: `%s'\n", command);
-
-    switch (pid = fork()) {
-    case -1:                   /* error */
-        p = -1;
-        break;
-    case 0:                    /* child */
-        if (setgid(getgid()) == -1)
-            _exit(127);
-        if (setuid(getuid()) == -1)
-            _exit(127);
-        execl("/bin/sh", "sh", "-c", command, (char *) NULL);
-        _exit(127);
-    default:                   /* parent */
-        do {
-            p = waitpid(pid, &status, 0);
-        } while (p == -1 && errno == EINTR);
-
-    }
-
-    if (OsSignal(SIGCHLD, csig) == SIG_ERR) {
-        perror("signal");
-        return -1;
-    }
-
-    return p == -1 ? -1 : status;
-}
-
 static struct pid {
     struct pid *next;
     FILE *fp;