From 42f7e397894c5132b4706f478e62ce5d648119c1 Mon Sep 17 00:00:00 2001
From: Robert Maynard <rmaynard@nvidia.com>
Date: Mon, 21 Mar 2022 15:05:39 -0400
Subject: Find: Support per call disabling of CMAKE_INSTALL_PREFIX

Fixes #23359
---
 Modules/CMakeSystemSpecificInformation.cmake | 10 ++++++++++
 Modules/Platform/CrayLinuxEnvironment.cmake  |  1 +
 Modules/Platform/UnixPaths.cmake             |  1 +
 Modules/Platform/WindowsPaths.cmake          |  1 +
 4 files changed, 13 insertions(+)

(limited to 'Modules')

diff --git a/Modules/CMakeSystemSpecificInformation.cmake b/Modules/CMakeSystemSpecificInformation.cmake
index 0ded568835..59f552ab42 100644
--- a/Modules/CMakeSystemSpecificInformation.cmake
+++ b/Modules/CMakeSystemSpecificInformation.cmake
@@ -17,6 +17,16 @@ set(CYGWIN )
 set(MSYS )
 set(WIN32  )
 
+function(_cmake_record_install_prefix )
+  set(_CMAKE_SYSTEM_PREFIX_PATH_INSTALL_PREFIX_VALUE "${CMAKE_INSTALL_PREFIX}" PARENT_SCOPE)
+  set(count 0)
+  foreach(value IN LISTS CMAKE_SYSTEM_PREFIX_PATH)
+    if(value STREQUAL CMAKE_INSTALL_PREFIX)
+      math(EXPR count "${count}+1")
+    endif()
+  endforeach()
+  set(_CMAKE_SYSTEM_PREFIX_PATH_INSTALL_PREFIX_COUNT "${count}" PARENT_SCOPE)
+endfunction()
 
 # include Generic system information
 include(CMakeGenericSystem)
diff --git a/Modules/Platform/CrayLinuxEnvironment.cmake b/Modules/Platform/CrayLinuxEnvironment.cmake
index f2aaf3f710..b982b3f3cf 100644
--- a/Modules/Platform/CrayLinuxEnvironment.cmake
+++ b/Modules/Platform/CrayLinuxEnvironment.cmake
@@ -68,6 +68,7 @@ if (NOT CMAKE_FIND_NO_INSTALL_PREFIX)
     )
   endif()
 endif()
+_cmake_record_install_prefix()
 
 list(APPEND CMAKE_SYSTEM_INCLUDE_PATH
   $ENV{SYSROOT_DIR}/usr/include/X11
diff --git a/Modules/Platform/UnixPaths.cmake b/Modules/Platform/UnixPaths.cmake
index b9381c3d7d..8a0ad23905 100644
--- a/Modules/Platform/UnixPaths.cmake
+++ b/Modules/Platform/UnixPaths.cmake
@@ -44,6 +44,7 @@ if (NOT CMAKE_FIND_NO_INSTALL_PREFIX)
     )
   endif()
 endif()
+_cmake_record_install_prefix()
 
 # Non "standard" but common install prefixes
 list(APPEND CMAKE_SYSTEM_PREFIX_PATH
diff --git a/Modules/Platform/WindowsPaths.cmake b/Modules/Platform/WindowsPaths.cmake
index b9e2f17979..de93338cf9 100644
--- a/Modules/Platform/WindowsPaths.cmake
+++ b/Modules/Platform/WindowsPaths.cmake
@@ -67,6 +67,7 @@ if (NOT CMAKE_FIND_NO_INSTALL_PREFIX)
     )
   endif()
 endif()
+_cmake_record_install_prefix()
 
 if(CMAKE_CROSSCOMPILING AND NOT CMAKE_HOST_SYSTEM_NAME MATCHES "Windows")
   # MinGW (useful when cross compiling from linux with CMAKE_FIND_ROOT_PATH set)
-- 
cgit v1.2.1