Index: apertium/deformat.xsl
--- apertium/deformat.xsl.orig
+++ apertium/deformat.xsl
@@ -155,6 +155,7 @@
 #include <map>
 #include <string>
 #include <vector>
+#include <unistd.h>
 
 extern "C" {
 #if !defined(__STDC__)
@@ -689,6 +690,12 @@ void usage(string const &progname)
 
 int main(int argc, char *argv[])
 {
+  if (pledge("stdio rpath wpath cpath", NULL) == -1)
+  {
+    wcerr << "pledge" << endl;
+    exit(EXIT_SUCCESS);
+  }
+
   LtLocale::tryToSetLocale();
   size_t base = 0;
   eosIncond = false;