Enable cross-compilation across architectures on android

Summary:
This patch fixes cross-architecture compilation,
by allowing flags like -target and --sysroot to be set for
architecture testing and compilation.

Reviewers: tberghammer, srhines, danalbert, beanz, compnerd

Subscribers: tberghammer, llvm-commits, danalbert

Differential Revision: https://reviews.llvm.org/D22415

llvm-svn: 276333

diff --git a/compiler-rt/lib/builtins/CMakeLists.txt b/compiler-rt/lib/builtins/CMakeLists.txt
index d5a1efe..274b0b4 100644 (file)
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -413,7 +413,7 @@ else ()
                               STATIC
                               ARCHS ${arch}
                               SOURCES ${${arch}_SOURCES}
-                              CFLAGS ${maybe_stdc99}
+                              CFLAGS ${maybe_stdc99} ${CMAKE_C_FLAGS}
                               PARENT_TARGET builtins)
     endif ()
   endforeach ()