[PATCH] D98861: [CMAKE] Fix cross-compilation build

[Vladislav Vinogradov via Phabricator via llvm-commits]

vinograd47 created this revision.
vinograd47 added reviewers: zero9178, abhina.sreeskantharajan, jhenderson.
Herald added a subscriber: mgorny.
vinograd47 requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Do not call `try_run` in `get_errc_messages` function in case of cross-compilation build.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98861

Files:
  llvm/cmake/modules/GetErrcMessages.cmake


Index: llvm/cmake/modules/GetErrcMessages.cmake
===================================================================
--- llvm/cmake/modules/GetErrcMessages.cmake
+++ llvm/cmake/modules/GetErrcMessages.cmake
@@ -4,6 +4,11 @@
 # Messages are semi colon separated.
 # Keep amount, order and tested error codes in sync with llvm/utils/lit/lit/llvm/config.py.
 function(get_errc_messages outvar)
+    if(CMAKE_CROSSCOMPILING)
+        set(${outvar} "" PARENT_SCOPE)
+        message(STATUS "Can't get errc messages in cross-compilation mode")
+        return()
+    endif()
 
     set(errc_test_code ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/getErrc.cpp)
 


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