From 5565b6494d84a669ede53b08a25d69290fc2cc65 Mon Sep 17 00:00:00 2001
From: Greg Becker <becker33@llnl.gov>
Date: Mon, 21 Sep 2020 11:54:23 -0500
Subject: [PATCH] typo (#18845)

---
 lib/spack/spack/build_systems/cmake.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/spack/spack/build_systems/cmake.py b/lib/spack/spack/build_systems/cmake.py
index 0f2970bb3e..2f5fd05405 100644
--- a/lib/spack/spack/build_systems/cmake.py
+++ b/lib/spack/spack/build_systems/cmake.py
@@ -314,7 +314,7 @@ def build_directory(self):
 
         :return: directory where to build the package
         """
-        dirname = 'spack-build=%s' % self.spec.dag_hash(7)
+        dirname = 'spack-build-%s' % self.spec.dag_hash(7)
         return os.path.join(self.stage.path, dirname)
 
     def cmake_args(self):
-- 
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