diff --git a/test/targets/gcc.yml b/test/targets/gcc.yml
deleted file mode 100644
index 93e518d..0000000
--- a/test/targets/gcc.yml
+++ /dev/null
@@ -1,45 +0,0 @@
-# =========================================================================
-#   CMock - Automatic Mock Generation for C
-#   ThrowTheSwitch.org
-#   Copyright (c) 2007-26 Mike Karlesky, Mark VanderVoord, & Greg Williams
-#   SPDX-License-Identifier: MIT
-# =========================================================================
-
----
-colour: true
-:tools:
-  :test_compiler:
-    :name: compiler
-    :executable: gcc
-    :arguments:
-    - "-c"
-    - "-Wall"
-    - "-Wextra"
-    - "-Wunused-parameter"
-    - "-Wno-address"
-    - "-Wno-invalid-token-paste"
-    - "-std=c99"
-    - "-pedantic"
-    - "-O0"
-    - '-I"$": COLLECTION_PATHS_TEST_TOOLCHAIN_INCLUDE'
-    - '-I"$": COLLECTION_PATHS_TEST_SUPPORT_SOURCE_INCLUDE_VENDOR'
-    - "-D$: COLLECTION_DEFINES_TEST_AND_VENDOR"
-    - "${1}"
-    - "-o ${2}"
-  :test_linker:
-    :name: linker
-    :executable: gcc
-    :arguments:
-    - "${1}"
-    - "-lm"
-    - "-o ${2}"
-:extension:
-  :object: ".o"
-  :executable: ".exe"
-:defines:
-  :test:
-  - UNITY_SUPPORT_64
-:unsupported:
-  - out_of_memory
-  - unity_64bit_support
-  - callingconv
diff --git a/test/targets/gcc_32.yml b/test/targets/gcc_32.yml
new file mode 100644
index 0000000..1afba39
--- /dev/null
+++ b/test/targets/gcc_32.yml
@@ -0,0 +1,18 @@
+# =========================================================================
+#   CMock - Automatic Mock Generation for C
+#   ThrowTheSwitch.org
+#   Copyright (c) 2007-26 Mike Karlesky, Mark VanderVoord, & Greg Williams
+#   SPDX-License-Identifier: MIT
+# =========================================================================
+
+# CMock overlay for vendor/unity/test/targets/gcc_32.yml
+# Only contains additions not present in the Unity base target.
+---
+:defines:
+  :test:
+  - UNITY_SUPPORT_64
+
+:unsupported:
+  - out_of_memory
+  - unity_64bit_support
+  - callingconv