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-rw-r--r--var/spack/repos/builtin/packages/perl-json/package.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/perl-json/package.py b/var/spack/repos/builtin/packages/perl-json/package.py
index 1638778997..5ffad50b64 100644
--- a/var/spack/repos/builtin/packages/perl-json/package.py
+++ b/var/spack/repos/builtin/packages/perl-json/package.py
@@ -16,3 +16,12 @@ class PerlJson(PerlPackage):
version("4.10", sha256="df8b5143d9a7de99c47b55f1a170bd1f69f711935c186a6dc0ab56dd05758e35")
version("2.97001", sha256="e277d9385633574923f48c297e1b8acad3170c69fa590e31fa466040fc6f8f5a")
+
+ variant(
+ "json-xs",
+ default=True,
+ description="""Makes the preferred backend JSON::XS available to avoid defaulting to the
+ slower JSON::PP""",
+ )
+
+ depends_on("perl-json-xs", when="+json-xs", type=("run"))