From 8c891f86cc2cbe346d4f6459d01c6d24c27ec2f1 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 3 Sep 2013 13:58:42 -0400
Subject: [PATCH] VS: Tolerate diagnostic output while detecting cl (#14387)

When the VS IDE build output setting

  Tools -> Options -> Projects and Solutions ->
   Build and Run -> MSBuild project output verbosity

is set to "Diagnostic" the build output contains a " (TaskId:###)"
suffix on the CMAKE_<lang>_COMPILER= line used to extract the compiler
executable location.  Strip this suffix before checking that the
reported location exists.
---
 Modules/CMakeDetermineCompilerId.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Modules/CMakeDetermineCompilerId.cmake b/Modules/CMakeDetermineCompilerId.cmake
index ebd9ce0b9..cc36ec4a8 100644
--- a/Modules/CMakeDetermineCompilerId.cmake
+++ b/Modules/CMakeDetermineCompilerId.cmake
@@ -157,7 +157,8 @@ Id flags: ${testflags}
       )
     # Match the compiler location line printed out.
     if("${CMAKE_${lang}_COMPILER_ID_OUTPUT}" MATCHES "CMAKE_${lang}_COMPILER=([^%\r\n]+)[\r\n]")
-      set(_comp "${CMAKE_MATCH_1}")
+      # Strip VS diagnostic output from the end of the line.
+      string(REGEX REPLACE " \\(TaskId:[0-9]*\\)$" "" _comp "${CMAKE_MATCH_1}")
       if(EXISTS "${_comp}")
         file(TO_CMAKE_PATH "${_comp}" _comp)
         set(CMAKE_${lang}_COMPILER_ID_TOOL "${_comp}" PARENT_SCOPE)