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-rw-r--r--fcompiler/gnu.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/fcompiler/gnu.py b/fcompiler/gnu.py
index c1353379c..76980ae7d 100644
--- a/fcompiler/gnu.py
+++ b/fcompiler/gnu.py
@@ -218,6 +218,8 @@ class GnuFCompiler(FCompiler):
march_opt = '-march=nocona'
elif cpu.is_Core2():
march_opt = '-march=nocona'
+ elif cpu.is_Xeon() and cpu.is_64bit():
+ march_opt = '-march=nocona'
elif cpu.is_Prescott():
march_opt = '-march=prescott'
elif cpu.is_PentiumIV():