diff --git a/compiler-rt/cmake/base-config-ix.cmake b/compiler-rt/cmake/base-config-ix.cmake
--- a/compiler-rt/cmake/base-config-ix.cmake
+++ b/compiler-rt/cmake/base-config-ix.cmake
@@ -219,8 +219,10 @@
       test_target_arch(powerpc64 "" "-m64")
     elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "s390x")
       test_target_arch(s390x "" "")
-    elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "sparc")
-      test_target_arch(sparc "" "-m32")
+    elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "sparc|sparcv9")
+      if (NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
+         test_target_arch(sparc "" "-m32")
+      endif()
       test_target_arch(sparcv9 "" "-m64")
     elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "mipsel|mips64el")
       # Gcc doesn't accept -m32/-m64 so we do the next best thing and use