[compiler-rt] [compiler-rt] Fix building on OpenBSD/amd64 (PR #165086)

[Oliver Hunt via llvm-commits]

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@@ -234,13 +234,29 @@ macro(test_targets)
     elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "powerpc64le|ppc64le")
       test_target_arch(powerpc64le "" "-m64")
     elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "powerpc")
-      test_target_arch(powerpc "" "-m32")
-      test_target_arch(powerpc64 "" "-m64")
+      if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "OpenBSD")
+        test_target_arch(powerpc "" "-m32")
+        test_target_arch(powerpc64 "" "-m64")
+      else()
+        if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+          test_target_arch(powerpc "" "-m32")
+        else()
+          test_target_arch(powerpc64 "" "-m64")
+        endif()
+      endif()
     elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "s390x")
       test_target_arch(s390x "" "")
     elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "sparc")
-      test_target_arch(sparc "" "-m32")
-      test_target_arch(sparcv9 "" "-m64")
+      if(NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "OpenBSD")
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ojhunt wrote:

ditto

https://github.com/llvm/llvm-project/pull/165086