From 035d1eaefeb8fcc1ea769d247011a67c900c7565 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Sat, 20 Jul 2024 14:08:47 +0900
Subject: [PATCH] wasi-sdk-sysroot.cmake: Avoid modifying things out of
 CMAKE_INSTALL_PREFIX

---
 cmake/wasi-sdk-sysroot.cmake | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/cmake/wasi-sdk-sysroot.cmake b/cmake/wasi-sdk-sysroot.cmake
index 6390f09..66354b3 100644
--- a/cmake/wasi-sdk-sysroot.cmake
+++ b/cmake/wasi-sdk-sysroot.cmake
@@ -246,9 +246,14 @@ endforeach()
 install(DIRECTORY ${wasi_tmp_install}/share
         USE_SOURCE_PERMISSIONS
         DESTINATION ${CMAKE_INSTALL_PREFIX})
-install(DIRECTORY ${wasi_resource_dir}/lib
-        USE_SOURCE_PERMISSIONS
-        DESTINATION ${clang_resource_dir})
+cmake_path(IS_PREFIX CMAKE_INSTALL_PREFIX ${clang_resource_dir} NORMALIZE install_resource_dir)
+if(install_resource_dir)
+  install(DIRECTORY ${wasi_resource_dir}/lib
+          USE_SOURCE_PERMISSIONS
+          DESTINATION ${clang_resource_dir})
+else()
+  message(STATUS "The resource dir (${clang_resource_dir}) will not be updated by the install target because it's out of CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}")
+endif()
 
 # Add a top-level `build` target as well as `build-$target` targets.
 add_custom_target(build ALL)