gnu-efi-3.0.8 added StrnCpy. This caused conflict with elilo's definition:
  ./../fs/../strops.h:30:16: error: conflicting types for 'StrnCpy'
  extern CHAR16 *StrnCpy(OUT CHAR16 *dst, IN const CHAR16 *src, UINTN count);
                  ^~~~~~~

Work it around by always using private copy.

Reported-by: Bill Glessner
--- a/strops.h
+++ b/strops.h
@@ -29,3 +29,4 @@
 extern CHAR16 *StrChr(IN const CHAR16 *s, const CHAR16 c);
+#define StrnCpy elilo_StrnCpy
 extern CHAR16 *StrnCpy(OUT CHAR16 *dst, IN const CHAR16 *src, UINTN count);
 extern CHAR8 *StrnXCpy(OUT CHAR8 *dst, IN const CHAR16 *src, UINTN count);
--- a/strops.c
+++ b/strops.c
@@ -27,4 +27,6 @@
 #include <efilib.h>
 
+#include "strops.h"
+
 //#define CHAR_NULL    (CHAR16)'\0'