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-rw-r--r--var/spack/repos/builtin/packages/asdf-cxx/package.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/asdf-cxx/package.py b/var/spack/repos/builtin/packages/asdf-cxx/package.py
index ffb871ad32..742d939666 100644
--- a/var/spack/repos/builtin/packages/asdf-cxx/package.py
+++ b/var/spack/repos/builtin/packages/asdf-cxx/package.py
@@ -45,5 +45,6 @@ class AsdfCxx(CMakePackage):
# An error in the cmake script requires swig all the time, not only when
# Python bindings are used
depends_on('swig @3.0.0:3.999.999', type='build')
- depends_on('yaml-cpp')
+ # Neither earlier nor later versions of yaml-cpp work
+ depends_on('yaml-cpp @0.6.3')
depends_on('zlib')