CMakeFindPackageMode: Honor CMAKE_SYSROOT to detect lib64 platforms
Add `CMAKE_SYSROOT` to check the full path on host OS. In a
non-crosscompiling use case, the call to `CMAKE_SYSROOT` is empty.
Fixes: #22608
diff --git a/Modules/CMakeFindPackageMode.cmake b/Modules/CMakeFindPackageMode.cmake
index 815dfc9..726e2a2 100644
--- a/Modules/CMakeFindPackageMode.cmake
+++ b/Modules/CMakeFindPackageMode.cmake
@@ -78,7 +78,7 @@
# from the outside
if(NOT CMAKE_SIZEOF_VOID_P)
set(CMAKE_SIZEOF_VOID_P 4)
- if(EXISTS /usr/lib64)
+ if(EXISTS ${CMAKE_SYSROOT}/usr/lib64)
set(CMAKE_SIZEOF_VOID_P 8)
else()
# use the file utility to check whether itself is 64 bit:
