GNU: add architecture compiler flag

ecmwf-ifs · Mar 15, 2024 · bdb065a · bdb065a
1 parent acbb988
commit bdb065a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/cmake/ecwam_compile_flags.cmake b/cmake/ecwam_compile_flags.cmake
@@ -76,6 +76,9 @@ if(CMAKE_Fortran_COMPILER_ID MATCHES "GNU")
   if( NOT CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 10 )
     ecbuild_add_fortran_flags( "-fallow-argument-mismatch" NAME argument_mismatch )
   endif()
+  if( NOT CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "aarch64" )
+    ecbuild_add_fortran_flags( "-m64" NAME gnu_arch )
+  endif()
 endif()
 
 if(CMAKE_Fortran_COMPILER_ID MATCHES "Flang")