llvm-runtimes-builtins-build-check

add a check and only set up and build compiler-rt builtins if they have
not been disabled

Gbp-Pq: Name llvm-runtimes-builtins-build-check.diff

diff --git a/llvm/runtimes/CMakeLists.txt b/llvm/runtimes/CMakeLists.txt
index 47904e366fb860ac37cce5e41881acb0abf15440..38e74ed2f8bb7732fda643ba413297a1278772e0 100644 (file)
--- a/llvm/runtimes/CMakeLists.txt
+++ b/llvm/runtimes/CMakeLists.txt
@@ -135,7 +135,12 @@ endfunction()
 # is required because the other runtimes need the builtin libraries present
 # before the just-built compiler can pass the configuration tests.
 get_compiler_rt_path(compiler_rt_path)
-if(compiler_rt_path)
+# check if builtins have been disabled
+set(RUNTIMES_BUILD_BUILTINS ON)
+if(DEFINED COMPILER_RT_BUILD_BUILTINS)
+  set(RUNTIMES_BUILD_BUILTINS ${COMPILER_RT_BUILD_BUILTINS})
+endif()
+if(compiler_rt_path AND RUNTIMES_BUILD_BUILTINS)
   if(NOT LLVM_BUILTIN_TARGETS)
     builtin_default_target(${compiler_rt_path}
       DEPENDS clang-resource-headers)