[compiler-rt] r252525 - [CMake] [macho_embedded] Check to make sure the compiler supports the architectures before generating build targets

[Chris Bieneman via llvm-commits]

Author: cbieneman
Date: Mon Nov  9 17:05:05 2015
New Revision: 252525

URL: http://llvm.org/viewvc/llvm-project?rev=252525&view=rev
Log:
[CMake] [macho_embedded] Check to make sure the compiler supports the architectures before generating build targets

If we don't check the compiler's capabilities we end up generating build targets that the compiler might not be able to build.

Modified:
    compiler-rt/trunk/cmake/Modules/CompilerRTDarwinUtils.cmake

Modified: compiler-rt/trunk/cmake/Modules/CompilerRTDarwinUtils.cmake
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/cmake/Modules/CompilerRTDarwinUtils.cmake?rev=252525&r1=252524&r2=252525&view=diff
==============================================================================
--- compiler-rt/trunk/cmake/Modules/CompilerRTDarwinUtils.cmake (original)
+++ compiler-rt/trunk/cmake/Modules/CompilerRTDarwinUtils.cmake Mon Nov  9 17:05:05 2015
@@ -360,7 +360,19 @@ function(darwin_add_embedded_builtin_lib
   set(PIC_FLAG_ -fPIC)
   set(STATIC_FLAG -static)
 
-  set(DARWIN_macho_embedded_ARCHS armv6m armv7m armv7em armv7 i386 x86_64)
+  darwin_test_archs(ios
+      DARWIN_macho_embedded_ios_ARCHS
+      armv6m armv7m armv7em armv7)
+  darwin_test_archs(osx
+      DARWIN_macho_embedded_osx_ARCHS
+      i386 x86_64)
+
+  list(APPEND DARWIN_macho_embedded_ARCHS
+    ${DARWIN_macho_embedded_ios_ARCHS} ${DARWIN_macho_embedded_osx_ARCHS})
+
+  if(NOT DARWIN_macho_embedded_ARCHS)
+    return()
+  endif()
 
   set(DARWIN_macho_embedded_LIBRARY_OUTPUT_DIR
     ${COMPILER_RT_OUTPUT_DIR}/lib/macho_embedded)