diff --git a/CMakeLists.txt b/CMakeLists.txt
index ed579ae5579..62fe07de47c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,14 +15,16 @@ project(SwiftSyntax LANGUAGES C Swift)
 set(SWIFT_VERSION 5)
 set(CMAKE_Swift_LANGUAGE_VERSION ${SWIFT_VERSION})
 
-set(CMAKE_Swift_MODULE_DIRECTORY ${CMAKE_BINARY_DIR}/swift)
+# The subdirectory into which host libraries will be installed.
+set(SWIFT_HOST_LIBRARIES_SUBDIRECTORY "swift/host")
 
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib/${SWIFT_HOST_LIBRARIES_SUBDIRECTORY}")
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib/${SWIFT_HOST_LIBRARIES_SUBDIRECTORY}")
 
 set(CMAKE_MACOSX_RPATH YES)
 
+include(AddSwiftHostLibrary)
+
 # Ensure that we do not link the _StringProcessing module. But we can
 # only pass this flag for new-enough compilers that support it.
 file(WRITE "${CMAKE_BINARY_DIR}/tmp/empty-check-string-processing.swift" "")
@@ -42,6 +44,24 @@ if (NOT SWIFT_SUPPORTS_DISABLE_IMPLICIT_STRING_PROCESSING_MODULE_IMPORT)
     $<$<COMPILE_LANGUAGE:Swift>:-disable-implicit-string-processing-module-import>)
 endif()
 
+# Determine the module triple.
+# FIXME: This is a hack. It's all a hack. Windows isn't setting
+# CMAKE_Swift_COMPILER_TARGET.
+if(CMAKE_Swift_COMPILER_TARGET)
+  string(REGEX REPLACE "macosx[0-9]+([.][0-9]+)?" "macos" SWIFT_MODULE_TRIPLE
+    ${CMAKE_Swift_COMPILER_TARGET})
+elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
+  if(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|AMD64")
+    set(SWIFT_MODULE_TRIPLE "x86_64-unknown-windows-msvc")
+  elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|ARM64|arm64")
+    set(SWIFT_MODULE_TRIPLE "aarch64-unknown-windows-msvc")
+  else()
+    message(FATAL_ERROR "Unrecognized architecture for Windows host")
+  endif()
+endif()
+
+message(STATUS "Module triple: ${SWIFT_MODULE_TRIPLE}")
+
 # Force single-threaded-only syntax trees to eliminate the Darwin
 # dependency in the compiler.
 add_compile_definitions(
diff --git a/Sources/IDEUtils/CMakeLists.txt b/Sources/IDEUtils/CMakeLists.txt
index 08e5c3ab8bb..ef2da4abb44 100644
--- a/Sources/IDEUtils/CMakeLists.txt
+++ b/Sources/IDEUtils/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(IDEUtils STATIC
+add_swift_host_library(IDEUtils
   gyb_generated/SyntaxClassification.swift
   Syntax+Classifications.swift
   SyntaxClassifier.swift
@@ -14,15 +14,3 @@ add_library(IDEUtils STATIC
 
 target_link_libraries(IDEUtils PUBLIC
   SwiftSyntax)
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS IDEUtils)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(IDEUtils PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES ${CMAKE_Swift_MODULE_DIRECTORY})
-
-install(TARGETS IDEUtils
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftBasicFormat/CMakeLists.txt b/Sources/SwiftBasicFormat/CMakeLists.txt
index df6c4679bbb..1b01786b5f9 100644
--- a/Sources/SwiftBasicFormat/CMakeLists.txt
+++ b/Sources/SwiftBasicFormat/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftBasicFormat STATIC
+add_swift_host_library(SwiftBasicFormat
   generated/BasicFormat.swift
   SyntaxProtocol+Formatted.swift
   Trivia+Indented.swift
@@ -14,15 +14,3 @@ add_library(SwiftBasicFormat STATIC
 
 target_link_libraries(SwiftBasicFormat PUBLIC
   SwiftSyntax)
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftBasicFormat)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftBasicFormat PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES ${CMAKE_Swift_MODULE_DIRECTORY})
-
-install(TARGETS SwiftBasicFormat
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftCompilerSupport/CMakeLists.txt b/Sources/SwiftCompilerSupport/CMakeLists.txt
index 48e1e9e6097..c3d028c6329 100644
--- a/Sources/SwiftCompilerSupport/CMakeLists.txt
+++ b/Sources/SwiftCompilerSupport/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftCompilerSupport STATIC
+add_swift_host_library(SwiftCompilerSupport
   ConsistencyCheck.swift
 )
 
@@ -17,16 +17,3 @@ target_link_libraries(SwiftCompilerSupport PUBLIC
   SwiftParserDiagnostics
   SwiftOperators
 )
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftCompilerSupport)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftCompilerSupport PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES
-  "${CMAKE_Swift_MODULE_DIRECTORY} ${CMAKE_CURRENT_SOURCE_DIR}")
-
-install(TARGETS SwiftCompilerSupport
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftDiagnostics/CMakeLists.txt b/Sources/SwiftDiagnostics/CMakeLists.txt
index 57b281c8a39..a095a986c58 100644
--- a/Sources/SwiftDiagnostics/CMakeLists.txt
+++ b/Sources/SwiftDiagnostics/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftDiagnostics STATIC
+add_swift_host_library(SwiftDiagnostics
   Diagnostic.swift
   DiagnosticsFormatter.swift
   FixIt.swift
@@ -16,15 +16,3 @@ add_library(SwiftDiagnostics STATIC
 
 target_link_libraries(SwiftDiagnostics PUBLIC
   SwiftSyntax)
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftDiagnostics)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftDiagnostics PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES ${CMAKE_Swift_MODULE_DIRECTORY})
-
-install(TARGETS SwiftDiagnostics
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftOperators/CMakeLists.txt b/Sources/SwiftOperators/CMakeLists.txt
index 7e1749ea816..b6c802991f2 100644
--- a/Sources/SwiftOperators/CMakeLists.txt
+++ b/Sources/SwiftOperators/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftOperators STATIC
+add_swift_host_library(SwiftOperators
   Operator.swift
   OperatorError+Diagnostics.swift
   OperatorError.swift
@@ -23,16 +23,3 @@ target_link_libraries(SwiftOperators PUBLIC
   SwiftSyntax
   SwiftDiagnostics
   SwiftParser)
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftOperators)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftOperators PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES
-  "${CMAKE_Swift_MODULE_DIRECTORY} ${CMAKE_CURRENT_SOURCE_DIR}")
-
-install(TARGETS SwiftOperators
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftParser/CMakeLists.txt b/Sources/SwiftParser/CMakeLists.txt
index bcfccfc84ee..cef72c047a1 100644
--- a/Sources/SwiftParser/CMakeLists.txt
+++ b/Sources/SwiftParser/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftParser STATIC
+add_swift_host_library(SwiftParser
   Attributes.swift
   Availability.swift
   CharacterInfo.swift
@@ -40,16 +40,3 @@ add_library(SwiftParser STATIC
 target_link_libraries(SwiftParser PUBLIC
   SwiftSyntax
   SwiftDiagnostics)
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftParser)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftParser PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES
-  "${CMAKE_Swift_MODULE_DIRECTORY}")
-
-install(TARGETS SwiftParser
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftParserDiagnostics/CMakeLists.txt b/Sources/SwiftParserDiagnostics/CMakeLists.txt
index 2dd2820444d..b498dbf81d0 100644
--- a/Sources/SwiftParserDiagnostics/CMakeLists.txt
+++ b/Sources/SwiftParserDiagnostics/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftParserDiagnostics STATIC
+add_swift_host_library(SwiftParserDiagnostics
   DiagnosticExtensions.swift
   MissingNodesError.swift
   ParserDiagnosticMessages.swift
@@ -20,16 +20,3 @@ target_link_libraries(SwiftParserDiagnostics PUBLIC
   SwiftDiagnostics
   SwiftParser
   SwiftSyntax)
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftParserDiagnostics)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftParserDiagnostics PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES
-  "${CMAKE_Swift_MODULE_DIRECTORY} ${CMAKE_CURRENT_SOURCE_DIR}")
-
-install(TARGETS SwiftParserDiagnostics
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftSyntax/CMakeLists.txt b/Sources/SwiftSyntax/CMakeLists.txt
index 15a940a0a62..174eef08f8c 100644
--- a/Sources/SwiftSyntax/CMakeLists.txt
+++ b/Sources/SwiftSyntax/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftSyntax STATIC
+add_swift_host_library(SwiftSyntax
   AbsolutePosition.swift
   BumpPtrAllocator.swift
   CommonAncestor.swift
@@ -54,15 +54,3 @@ add_library(SwiftSyntax STATIC
   gyb_generated/syntax_nodes/SyntaxStmtNodes.swift
   gyb_generated/syntax_nodes/SyntaxTypeNodes.swift
 )
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftSyntax)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftSyntax PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES ${CMAKE_Swift_MODULE_DIRECTORY})
-
-install(TARGETS SwiftSyntax
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/SwiftSyntaxBuilder/CMakeLists.txt b/Sources/SwiftSyntaxBuilder/CMakeLists.txt
index 5cfa05a2fb3..78cccaf6b6e 100644
--- a/Sources/SwiftSyntaxBuilder/CMakeLists.txt
+++ b/Sources/SwiftSyntaxBuilder/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(SwiftSyntaxBuilder STATIC
+add_swift_host_library(SwiftSyntaxBuilder
   ConvenienceInitializers.swift
   HasTrailingComma.swift
   Indenter.swift
@@ -29,16 +29,3 @@ target_link_libraries(SwiftSyntaxBuilder PUBLIC
   SwiftParserDiagnostics
   SwiftSyntax
   )
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS SwiftSyntaxBuilder)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(SwiftSyntaxBuilder PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES
-  "${CMAKE_Swift_MODULE_DIRECTORY} ${CMAKE_CURRENT_SOURCE_DIR}")
-
-install(TARGETS SwiftSyntaxBuilder
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/Sources/_SwiftSyntaxMacros/CMakeLists.txt b/Sources/_SwiftSyntaxMacros/CMakeLists.txt
index d581f78abdc..0b5112f7934 100644
--- a/Sources/_SwiftSyntaxMacros/CMakeLists.txt
+++ b/Sources/_SwiftSyntaxMacros/CMakeLists.txt
@@ -6,7 +6,7 @@
 # See http://swift.org/LICENSE.txt for license information
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
-add_library(_SwiftSyntaxMacros STATIC
+add_swift_host_library(_SwiftSyntaxMacros
   ExpressionMacro.swift
   Macro.swift
   MacroEvaluationContext.swift
@@ -21,16 +21,3 @@ target_link_libraries(_SwiftSyntaxMacros PUBLIC
   SwiftParser
   SwiftSyntaxBuilder
   )
-
-set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS _SwiftSyntaxMacros)
-
-# NOTE: workaround for CMake not setting up include flags yet
-set_target_properties(_SwiftSyntaxMacros PROPERTIES
-  INTERFACE_INCLUDE_DIRECTORIES
-  "${CMAKE_Swift_MODULE_DIRECTORY} ${CMAKE_CURRENT_SOURCE_DIR}")
-
-install(TARGETS _SwiftSyntaxMacros
-  EXPORT SwiftSyntaxTargets
-  ARCHIVE DESTINATION lib
-  LIBRARY DESTINATION lib
-  RUNTIME DESTINATION bin)
diff --git a/cmake/modules/AddSwiftHostLibrary.cmake b/cmake/modules/AddSwiftHostLibrary.cmake
new file mode 100644
index 00000000000..c26cfbf4dbf
--- /dev/null
+++ b/cmake/modules/AddSwiftHostLibrary.cmake
@@ -0,0 +1,65 @@
+# This source file is part of the Swift.org open source project
+#
+# Copyright (c) 2014 - 2022 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 a new host library with the given name.
+function(add_swift_host_library name)
+  set(ASHL_SOURCES ${ARGN})
+
+  # Create the library target.
+  add_library(${name} ${ASHL_SOURCES})
+
+  # Add this to the list of exported targets.
+  set_property(GLOBAL APPEND PROPERTY SWIFTSYNTAX_EXPORTS ${name})
+
+  # Determine where Swift modules will be built and installed.
+  set(module_dir ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
+  set(module_base "${module_dir}/${name}.swiftmodule")
+  set(module_file "${module_base}/${SWIFT_MODULE_TRIPLE}.swiftmodule")
+  set(module_interface_file "${module_base}/${SWIFT_MODULE_TRIPLE}.swiftinterface")
+  set(module_sourceinfo_file "${module_base}/${SWIFT_MODULE_TRIPLE}.swiftsourceinfo")
+
+  # Add a custom target to create the module directory.
+  add_custom_command(
+      TARGET ${name}
+      PRE_BUILD
+      COMMAND "${CMAKE_COMMAND}" -E make_directory ${module_base}
+      COMMENT "Generating module directory for ${name}")
+
+  # Install the Swift module into the appropriate location.
+  set_target_properties(${name}
+    PROPERTIES Swift_MODULE_DIRECTORY ${module_base}
+  )
+
+  # Configure the emission of the Swift module files.
+  target_compile_options("${name}" PRIVATE
+    $<$<COMPILE_LANGUAGE:Swift>:
+      -module-name;${name};
+      -emit-module-path;${module_file};
+      -emit-module-source-info-path;${module_sourceinfo_file}
+      >)
+
+  # NOTE: workaround for CMake not setting up include flags yet
+  set_target_properties(${name} PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES ${module_dir}
+  )
+
+  # Install this target
+  install(TARGETS ${name}
+    EXPORT SwiftSyntaxTargets
+    ARCHIVE DESTINATION lib/${SWIFT_HOST_LIBRARIES_SUBDIRECTORY}
+    LIBRARY DESTINATION lib/${SWIFT_HOST_LIBRARIES_SUBDIRECTORY}
+    RUNTIME DESTINATION bin
+  )
+
+  # Install the module files.
+  install(
+    DIRECTORY ${module_base}
+    DESTINATION lib/${SWIFT_HOST_LIBRARIES_SUBDIRECTORY}
+    FILES_MATCHING PATTERN "*.swift*"
+  )
+endfunction()