commit 33dbfa00107b4cb53a306fc745fa8b80ce730903
from: Sergey Bronnikov <estetus@gmail.com>
date: Thu Jun  4 13:27:46 2026 UTC

cmake: raise an error if the library was not found

The package with Clang runtime libraries may be missing on the
host, in that case the CMake function `SetClangLibPath()` will
return the library name even though it's not missing. The patch
raises an error if the path returned by the compiler doesn't exist.

commit - 09e12efc18043d98c96ba3d420972054b760f74b
commit + 33dbfa00107b4cb53a306fc745fa8b80ce730903
blob - 9cce9f2e7997bea5a86d6e4dca6f77e81e1cb265
blob + ba02cc9cee0d4d483a3657b2022a3ac444f6ac46
--- cmake/SetClangRTLib.cmake
+++ cmake/SetClangRTLib.cmake
@@ -34,6 +34,9 @@ function(SetClangLibPath lib_name outvar)
   if (CMD_ERROR)
     message(FATAL_ERROR "${CMD_ERROR}")
   endif ()
+  if(NOT EXISTS "${LIB_PATH}")
+    message(FATAL_ERROR "The library is missing: ${LIB_PATH}")
+  endif()
   set(${outvar} ${LIB_PATH} PARENT_SCOPE)
   message(STATUS "[SetClangRTLib] ${outvar} is ${LIB_PATH}")
 endfunction()