diff --git a/Sources/CMakeLists.txt b/Sources/CMakeLists.txt
index 0b28ca19927..bfe3b11b24a 100644
--- a/Sources/CMakeLists.txt
+++ b/Sources/CMakeLists.txt
@@ -8,6 +8,7 @@
 
 add_subdirectory(_SwiftLibraryPluginProviderCShims)
 add_subdirectory(_SwiftSyntaxCShims)
+add_subdirectory(_SwiftSyntaxGenericTestSupport)
 add_subdirectory(SwiftBasicFormat)
 add_subdirectory(SwiftSyntax)
 add_subdirectory(SwiftDiagnostics)
@@ -21,6 +22,7 @@ add_subdirectory(SwiftIfConfig)
 add_subdirectory(SwiftSyntaxBuilder)
 add_subdirectory(SwiftSyntaxMacros)
 add_subdirectory(SwiftSyntaxMacroExpansion)
+add_subdirectory(SwiftSyntaxMacrosGenericTestSupport)
 add_subdirectory(SwiftCompilerPluginMessageHandling)
 add_subdirectory(SwiftIDEUtils)
 add_subdirectory(SwiftCompilerPlugin)
diff --git a/Sources/SwiftSyntaxMacrosGenericTestSupport/CMakeLists.txt b/Sources/SwiftSyntaxMacrosGenericTestSupport/CMakeLists.txt
new file mode 100644
index 00000000000..eff235360c0
--- /dev/null
+++ b/Sources/SwiftSyntaxMacrosGenericTestSupport/CMakeLists.txt
@@ -0,0 +1,24 @@
+# This source file is part of the Swift.org open source project
+#
+# Copyright (c) 2014 - 2026 Apple Inc. and the Swift project authors
+# Licensed under Apache License v2.0 with Runtime Library Exception
+#
+# See http://swift.org/LICENSE.txt for license information
+# See http://swift.org/CONTRIBUTORS.txt for Swift project authors
+
+add_swift_syntax_library(SwiftSyntaxMacrosGenericTestSupport
+  EXCLUDE_FROM_ALL
+  Assertions.swift
+)
+
+target_link_swift_syntax_libraries(SwiftSyntaxMacrosGenericTestSupport PUBLIC
+  _SwiftSyntaxGenericTestSupport
+  SwiftDiagnostics
+  SwiftIDEUtils
+  SwiftIfConfig
+  SwiftParser
+  SwiftParserDiagnostics
+  SwiftSyntaxMacros
+  SwiftSyntaxMacroExpansion
+)
+
diff --git a/Sources/_SwiftSyntaxGenericTestSupport/CMakeLists.txt b/Sources/_SwiftSyntaxGenericTestSupport/CMakeLists.txt
new file mode 100644
index 00000000000..7c72f47c34d
--- /dev/null
+++ b/Sources/_SwiftSyntaxGenericTestSupport/CMakeLists.txt
@@ -0,0 +1,17 @@
+# This source file is part of the Swift.org open source project
+#
+# Copyright (c) 2014 - 2026 Apple Inc. and the Swift project authors
+# Licensed under Apache License v2.0 with Runtime Library Exception
+#
+# See http://swift.org/LICENSE.txt for license information
+# See http://swift.org/CONTRIBUTORS.txt for Swift project authors
+
+add_swift_syntax_library(_SwiftSyntaxGenericTestSupport
+  EXCLUDE_FROM_ALL
+  AssertEqualWithDiff.swift
+  String+TrimmingTrailingWhitespace.swift
+)
+
+target_link_swift_syntax_libraries(_SwiftSyntaxGenericTestSupport PUBLIC
+)
+