[PATCH] D23823: [builtins] Make sure builtin compile tests respect CMAKE_C_COMPILER_TARGET

[Francis Ricci via llvm-commits]

fjricci created this revision.
fjricci added reviewers: beanz, compnerd.
fjricci added a subscriber: llvm-commits.

Since we generate the compiler invocation on our own, we need to
manually add -target if CMAKE_C_COMPILER_TARGET has been specified.

https://reviews.llvm.org/D23823

Files:
  cmake/Modules/BuiltinTests.cmake

Index: cmake/Modules/BuiltinTests.cmake
===================================================================
--- cmake/Modules/BuiltinTests.cmake
+++ cmake/Modules/BuiltinTests.cmake
@@ -11,7 +11,13 @@
   file(WRITE ${SIMPLE_C} "${ARG_SOURCE}\n")
   string(REGEX MATCHALL "<[A-Za-z0-9_]*>" substitutions
          ${CMAKE_C_COMPILE_OBJECT})
-  string(REPLACE ";" " " extra_flags "${ARG_FLAGS}")
+
+  set(TRY_COMPILE_FLAGS "${ARG_FLAGS}")
+  if(CMAKE_C_COMPILER_TARGET)
+    set(TRY_COMPILE_FLAGS "${TRY_COMPILE_FLAGS} -target ${CMAKE_C_COMPILER_TARGET}")
+  endif()
+
+  string(REPLACE ";" " " extra_flags "${TRY_COMPILE_FLAGS}")
 
   set(test_compile_command "${CMAKE_C_COMPILE_OBJECT}")
   foreach(substitution ${substitutions})


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