From 06817600e4416aec1d32bf39bb9ee10b948cf33a Mon Sep 17 00:00:00 2001
From: "John W. Parent" <45471568+johnwparent@users.noreply.github.com>
Date: Thu, 8 Jun 2023 13:05:38 -0400
Subject: CMake/Windows bugfix: Make CMAKE_INSTALL_PREFIX a posix path (#36842)

CMake gives off a warning when passed Windows style paths as
install prefixes as the resultant path often causes invalid
escape sequences.
---
 lib/spack/spack/build_systems/cmake.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/spack/spack/build_systems/cmake.py b/lib/spack/spack/build_systems/cmake.py
index f3b4ad35d6..8e819f3958 100644
--- a/lib/spack/spack/build_systems/cmake.py
+++ b/lib/spack/spack/build_systems/cmake.py
@@ -5,6 +5,7 @@
 import collections.abc
 import inspect
 import os
+import pathlib
 import platform
 import re
 import sys
@@ -15,7 +16,6 @@ import llnl.util.filesystem as fs
 import spack.build_environment
 import spack.builder
 import spack.package_base
-import spack.util.path
 from spack.directives import build_system, conflicts, depends_on, variant
 from spack.multimethod import when
 
@@ -271,7 +271,7 @@ class CMakeBuilder(BaseBuilder):
         args = [
             "-G",
             generator,
-            define("CMAKE_INSTALL_PREFIX", pkg.prefix),
+            define("CMAKE_INSTALL_PREFIX", pathlib.Path(pkg.prefix).as_posix()),
             define("CMAKE_BUILD_TYPE", build_type),
             define("BUILD_TESTING", pkg.run_tests),
         ]
-- 
cgit v1.2.3-70-g09d2