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-rw-r--r--var/spack/repos/builtin/packages/lammps/package.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/lammps/package.py b/var/spack/repos/builtin/packages/lammps/package.py
index a44c7bd603..b2d3d11133 100644
--- a/var/spack/repos/builtin/packages/lammps/package.py
+++ b/var/spack/repos/builtin/packages/lammps/package.py
@@ -791,7 +791,7 @@ class Lammps(CMakePackage, CudaPackage, ROCmPackage):
# FFTW libraries are available and enable them by default.
if "^fftw" in spec or "^cray-fftw" in spec or "^amdfftw" in spec:
args.append(self.define("FFT", "FFTW3"))
- elif "^mkl" in spec:
+ elif spec["fftw-api"].name in INTEL_MATH_LIBRARIES:
args.append(self.define("FFT", "MKL"))
elif "^armpl-gcc" in spec or "^acfl" in spec:
args.append(self.define("FFT", "FFTW3"))