[clang] 633e3da - [CMake] Print the autodetected host linker version

[Petr Hosek via cfe-commits]

Author: Petr Hosek
Date: 2020-08-05T20:22:28-07:00
New Revision: 633e3dacf27ea4950b7067803502490597ba96e0

URL: https://github.com/llvm/llvm-project/commit/633e3dacf27ea4950b7067803502490597ba96e0
DIFF: https://github.com/llvm/llvm-project/commit/633e3dacf27ea4950b7067803502490597ba96e0.diff

LOG: [CMake] Print the autodetected host linker version

There's no easy way to find out what the autodetected version is, but
sometimes it may be useful to confirm that the right version is being
used. Print it as CMake status message.

Differential Revision: https://reviews.llvm.org/D85362

Added: 
    

Modified: 
    clang/CMakeLists.txt

Removed: 
    


################################################################################
diff  --git a/clang/CMakeLists.txt b/clang/CMakeLists.txt
index 7baf93cbf792..5ac0e6b6ef0c 100644
--- a/clang/CMakeLists.txt
+++ b/clang/CMakeLists.txt
@@ -424,15 +424,15 @@ if (APPLE)
     RESULT_VARIABLE HAD_ERROR
     OUTPUT_VARIABLE LD_V_OUTPUT
   )
-  if (NOT HAD_ERROR)
-    if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
-      string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
-    elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
-      string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
-    endif()
-  else()
+  if (HAD_ERROR)
     message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
   endif()
+  if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
+    string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
+  elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
+    string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
+  endif()
+  message(STATUS "Host linker version: ${HOST_LINK_VERSION}")
 endif()
 
 include(CMakeParseArguments)