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-rw-r--r--numpy/distutils/intelccompiler.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/numpy/distutils/intelccompiler.py b/numpy/distutils/intelccompiler.py
index 0388ad577..0fa1c11dd 100644
--- a/numpy/distutils/intelccompiler.py
+++ b/numpy/distutils/intelccompiler.py
@@ -58,7 +58,7 @@ class IntelEM64TCCompiler(UnixCCompiler):
v = self.get_version()
mpopt = 'openmp' if v and v < '15' else 'qopenmp'
- self.cc_exe = ('icc -m64 -fPIC -fp-model strict -O3 '
+ self.cc_exe = ('icc -std=c99 -m64 -fPIC -fp-model strict -O3 '
'-fomit-frame-pointer -{}').format(mpopt)
compiler = self.cc_exe