[PATCH] D22370: Respect LLVM_HOST_TRIPLE when manually specified

[Luke Drummond via llvm-commits]

ldrumm created this revision.
ldrumm added reviewers: chandlerc, zturner.
ldrumm added a subscriber: llvm-commits.
ldrumm set the repository for this revision to rL LLVM.
Herald added subscribers: danalbert, tberghammer.

If the user specifies `-DLLVM_HOST_TRIPLE=...` this should override the guess made by CMake

This appears necessary when cross-compiling Android `lldb-server` on win32 where the host triple guessed by cmake interferes with the target triple

Repository:
  rL LLVM

https://reviews.llvm.org/D22370

Files:
  cmake/modules/GetHostTriple.cmake

Index: cmake/modules/GetHostTriple.cmake
===================================================================
--- cmake/modules/GetHostTriple.cmake
+++ cmake/modules/GetHostTriple.cmake
@@ -2,6 +2,10 @@
 # Invokes config.guess
 
 function( get_host_triple var )
+  if( LLVM_HOST_TRIPLE )
+	set( value ${LLVM_HOST_TRIPLE} )
+	return()
+  endif()
   if( MSVC )
     if( CMAKE_CL_64 )
       set( value "x86_64-pc-win32" )


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