From f5506b002cac8226be51d9ccdc45cf37f94d1d42 Mon Sep 17 00:00:00 2001
From: Felix Yan <felixonmars@archlinux.org>
Date: Fri, 28 Jul 2023 16:19:14 +0300
Subject: [PATCH] Add 64-bit flag on INTERFACE64 only

---
 cmake/fc.cmake | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cmake/fc.cmake b/cmake/fc.cmake
index 2f7ee3371..7400cb3e6 100644
--- a/cmake/fc.cmake
+++ b/cmake/fc.cmake
@@ -65,7 +65,9 @@ if (${F_COMPILER} STREQUAL "GFORTRAN" OR ${F_COMPILER} STREQUAL "F95")
     endif ()
     if (RISCV64)
       if (BINARY64)
-        set(FCOMMON_OPT "${FCOMMON_OPT} -fdefault-integer-8")
+        if (INTERFACE64)
+          set(FCOMMON_OPT "${FCOMMON_OPT} -fdefault-integer-8")
+        endif ()
       endif ()
     endif ()
   else ()