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-rw-r--r--lib/spack/spack/compilers/gcc.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/spack/spack/compilers/gcc.py b/lib/spack/spack/compilers/gcc.py
index 097b24bb87..f0d27d590e 100644
--- a/lib/spack/spack/compilers/gcc.py
+++ b/lib/spack/spack/compilers/gcc.py
@@ -56,7 +56,7 @@ class Gcc(Compiler):
return get_compiler_version(
fc, '-dumpversion',
# older gfortran versions don't have simple dumpversion output.
- r'(?:GNU Fortran \(GCC\))?(\d+\.\d+\.\d+)')
+ r'(?:GNU Fortran \(GCC\))?(\d+\.\d+(?:\.\d+)?)')
@classmethod