diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index a110c018ec0a77c59f67cd7ec152e4ce72b646ac..0d196132e47a50379a0cfafd314b775b18e5d1f9 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -11,7 +11,7 @@ jobs:
   build:
     strategy:
       matrix:
-        runner: [windows-large]
+        runner: [windows-large, macos-12]
         configuration: [ReleaseOS]
         addrsize: [64]
         include:
diff --git a/indra/cmake/LLAddBuildTest.cmake b/indra/cmake/LLAddBuildTest.cmake
index bf569e5d992dcbef8bd8a5385f24beaa9a4ec126..405128d661d4819563fd63dd96384a0d263cc054 100644
--- a/indra/cmake/LLAddBuildTest.cmake
+++ b/indra/cmake/LLAddBuildTest.cmake
@@ -126,6 +126,13 @@ MACRO(LL_ADD_PROJECT_UNIT_TESTS project sources)
       message("LL_ADD_PROJECT_UNIT_TESTS ${name}_test_additional_CFLAGS ${${name}_test_additional_CFLAGS}")
     endif()
 
+    if (DARWIN)
+      # test binaries always need to be signed for local development
+      set_target_properties(PROJECT_${project}_TEST_${name}
+	      PROPERTIES
+              XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY "-")
+    endif ()
+
     #
     # Setup test targets
     #
@@ -221,6 +228,13 @@ FUNCTION(LL_ADD_INTEGRATION_TEST
             )
   endif ()
 
+  if (DARWIN)
+    # test binaries always need to be signed for local development
+    set_target_properties(INTEGRATION_TEST_${testname}
+            PROPERTIES
+	    XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY "-")
+  endif ()
+
   # Add link deps to the executable
   if(TEST_DEBUG)
     message(STATUS "TARGET_LINK_LIBRARIES(INTEGRATION_TEST_${testname} ${libraries})")