From ebd930ace9681ca800dd6f6d1707d00e6e31cf28 Mon Sep 17 00:00:00 2001
From: "Wileam Y. Phan" <50928756+wyphan@users.noreply.github.com>
Date: Wed, 27 Apr 2022 20:16:19 -0400
Subject: Add Python `chmod +x` equivalent in `fpm` package (#30342)

---
 var/spack/repos/builtin/packages/fpm/package.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/var/spack/repos/builtin/packages/fpm/package.py b/var/spack/repos/builtin/packages/fpm/package.py
index d13b4a2c45..e2784ea726 100644
--- a/var/spack/repos/builtin/packages/fpm/package.py
+++ b/var/spack/repos/builtin/packages/fpm/package.py
@@ -3,6 +3,9 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+import os
+import stat
+
 from spack import *
 
 
@@ -52,7 +55,12 @@ class Fpm(Package):
         This functionality is provided by the ``install.sh`` script.
         """
 
-        script = Executable("./install.sh")
+        # Perform `chmod +x ./install.sh`
+        script_path = './install.sh'
+        st = os.stat(script_path)
+        os.chmod(script_path, st.st_mode | stat.S_IXUSR)
+
+        script = Executable(script_path)
         script(*self.install_args())
 
     def install_args(self):
-- 
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