diff --git a/llvm-project/clang/runtime/CMakeLists.txt b/llvm-project/clang/runtime/CMakeLists.txt
index 61b1c60bf590..5b0d10a67699 100644
--- a/llvm-project/clang/runtime/CMakeLists.txt
+++ b/llvm-project/clang/runtime/CMakeLists.txt
@@ -75,6 +75,7 @@ if(LLVM_BUILD_EXTERNAL_COMPILER_RT AND EXISTS ${COMPILER_RT_SRC_ROOT}/)
     CMAKE_ARGS ${CLANG_COMPILER_RT_CMAKE_ARGS}
                -DCMAKE_C_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang
                -DCMAKE_CXX_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++
+               -DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY
                -DCMAKE_ASM_COMPILER=${LLVM_RUNTIME_OUTPUT_INTDIR}/clang
                -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
                -DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}
@@ -84,6 +85,7 @@ if(LLVM_BUILD_EXTERNAL_COMPILER_RT AND EXISTS ${COMPILER_RT_SRC_ROOT}/)
                -DCOMPILER_RT_EXEC_OUTPUT_DIR=${LLVM_RUNTIME_OUTPUT_INTDIR}
                -DCOMPILER_RT_INSTALL_PATH:STRING=lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}
                -DCOMPILER_RT_INCLUDE_TESTS=${LLVM_INCLUDE_TESTS}
+               -DCOMPILER_RT_USE_BUILTINS_LIBRARY=ON
                -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
                -DLLVM_LIBDIR_SUFFIX=${LLVM_LIBDIR_SUFFIX}
                -DLLVM_RUNTIME_OUTPUT_INTDIR=${LLVM_RUNTIME_OUTPUT_INTDIR}
diff --git a/llvm-project/clang/tools/IndexStore/CMakeLists.txt b/llvm-project/clang/tools/IndexStore/CMakeLists.txt
index 1bcfc0734785..ddb77c91b22d 100644
--- a/llvm-project/clang/tools/IndexStore/CMakeLists.txt
+++ b/llvm-project/clang/tools/IndexStore/CMakeLists.txt
@@ -65,7 +65,7 @@ if (LLVM_INSTALL_TOOLCHAIN_ONLY)
   endif()
 endif()
 
-set(INDEXSTORE_HEADERS_INSTALL_DESTINATION "local/include")
+set(INDEXSTORE_HEADERS_INSTALL_DESTINATION "include")
 
 install(DIRECTORY ../../include/indexstore
   COMPONENT IndexStore
diff --git a/llvm-project/compiler-rt/cmake/Modules/HandleCompilerRT.cmake b/llvm-project/compiler-rt/cmake/Modules/HandleCompilerRT.cmake
index ac9e0871489d..b495cbfb5c2e 100644
--- a/llvm-project/compiler-rt/cmake/Modules/HandleCompilerRT.cmake
+++ b/llvm-project/compiler-rt/cmake/Modules/HandleCompilerRT.cmake
@@ -31,7 +31,7 @@ function(find_compiler_rt_library name target variable)
     # If the cache variable is not defined, invoke clang and then 
     # set it with cache_compiler_rt_library.
     set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${SANITIZER_COMMON_FLAGS}
-        "--rtlib=compiler-rt" "-print-libgcc-file-name")
+        "--rtlib=compiler-rt" "-print-libgcc-file-name" "-resource-dir=$ENV{PREFIX}/lib/clang/$ENV{TERMUX_CLANG_VERSION}/")
     if(target)
       list(APPEND CLANG_COMMAND "--target=${target}")
     endif()
diff --git a/swift/CMakeLists.txt b/swift/CMakeLists.txt
index b7503ecdd6..c643c2c9a5 100644
--- a/swift/CMakeLists.txt
+++ b/swift/CMakeLists.txt
@@ -463,7 +463,7 @@ set(SWIFT_BUILD_HOST_DISPATCH FALSE)
 if(SWIFT_ENABLE_DISPATCH AND NOT CMAKE_SYSTEM_NAME STREQUAL Darwin)
   # Only build libdispatch for the host if the host tools are being built and
   # specifically if these two libraries that depend on it are built.
-  if(SWIFT_INCLUDE_TOOLS AND (SWIFT_BUILD_SYNTAXPARSERLIB OR SWIFT_BUILD_SOURCEKIT))
+  if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL Android AND SWIFT_INCLUDE_TOOLS AND (SWIFT_BUILD_SYNTAXPARSERLIB OR SWIFT_BUILD_SOURCEKIT))
     set(SWIFT_BUILD_HOST_DISPATCH TRUE)
   endif()
 
@@ -976,7 +976,8 @@ if (LLVM_ENABLE_DOXYGEN)
   message(STATUS "Doxygen: enabled")
 endif()
 
-if(SWIFT_ENABLE_DISPATCH)
+# Use the Termux libdispatch when cross-compiling instead.
+if(SWIFT_ENABLE_DISPATCH AND ${CMAKE_HOST_SYSTEM_NAME} STREQUAL Android)
   include(Libdispatch)
 endif()
 
diff --git a/swift/cmake/modules/AddSwift.cmake b/swift/cmake/modules/AddSwift.cmake
index a448bcb23c4..0ddbac17a52 100644
--- a/swift/cmake/modules/AddSwift.cmake
+++ b/swift/cmake/modules/AddSwift.cmake
@@ -706,7 +706,7 @@
   elseif(${LIBSWIFT_BUILD_MODE} STREQUAL "CROSSCOMPILE")
     set(sdk_option "-sdk" "${SWIFT_SDK_${SWIFT_HOST_VARIANT_SDK}_ARCH_${SWIFT_HOST_VARIANT_ARCH}_PATH}")
     get_filename_component(swift_exec_bin_dir ${ALS_SWIFT_EXEC} DIRECTORY)
-    set(sdk_option ${sdk_option} "-resource-dir" "${swift_exec_bin_dir}/../lib/swift")
+    set(sdk_option ${sdk_option} "-resource-dir" "${SWIFT_BINARY_DIR}/lib/swift")
   endif()
   get_versioned_target_triple(target ${SWIFT_HOST_VARIANT_SDK}
       ${SWIFT_HOST_VARIANT_ARCH} "${deployment_version}")
@@ -758,6 +758,9 @@
   add_library(${name} STATIC ${all_obj_files})
   set_target_properties(${name} PROPERTIES LINKER_LANGUAGE CXX)
   set_property(GLOBAL APPEND PROPERTY SWIFT_BUILDTREE_EXPORTS ${name})
+  if(${LIBSWIFT_BUILD_MODE} STREQUAL "CROSSCOMPILE")
+    add_dependencies(${name} swift-stdlib-android-${SWIFT_HOST_VARIANT_ARCH})
+  endif()
 endfunction()
 
 macro(add_swift_tool_subdirectory name)
@@ -922,7 +923,7 @@ function(add_swift_host_tool executable)
       # installed host toolchain.
       get_filename_component(swift_bin_dir ${SWIFT_EXEC_FOR_LIBSWIFT} DIRECTORY)
       get_filename_component(swift_dir ${swift_bin_dir} DIRECTORY)
-      set(host_lib_dir "${swift_dir}/lib/swift/${SWIFT_SDK_${SWIFT_HOST_VARIANT_SDK}_LIB_SUBDIR}")
+      set(host_lib_dir "${SWIFT_BINARY_DIR}/lib/swift/${SWIFT_SDK_${SWIFT_HOST_VARIANT_SDK}_LIB_SUBDIR}")
 
       target_link_libraries(${executable} PRIVATE ${swiftrt})
       target_link_libraries(${executable} PRIVATE "swiftCore")
diff --git a/swift/localization/CMakeLists.txt b/swift/localization/CMakeLists.txt
index 07a3585a66c..461a98b6856 100644
--- a/swift/localization/CMakeLists.txt
+++ b/swift/localization/CMakeLists.txt
@@ -1,3 +1,4 @@
+if("${SWIFT_NATIVE_SWIFT_TOOLS_PATH}" STREQUAL "${SWIFT_RUNTIME_OUTPUT_INTDIR}")
 set(diagnostic_witness "${CMAKE_BINARY_DIR}/share/swift/diagnostics/generated")
 
 add_custom_command(
@@ -32,3 +33,4 @@ swift_install_in_component(
   PATTERN "*.db"
   PATTERN "*.yaml"
 )
+endif()
diff --git a/swift/stdlib/cmake/modules/SwiftSource.cmake b/swift/stdlib/cmake/modules/SwiftSource.cmake
index 4bc312f7f89..d71f6408d9f 100644
--- a/swift/stdlib/cmake/modules/SwiftSource.cmake
+++ b/swift/stdlib/cmake/modules/SwiftSource.cmake
@@ -708,7 +708,7 @@ function(_compile_swift_files
   endif()
 
   set(swift_compiler_tool_dep)
-  if(SWIFT_INCLUDE_TOOLS)
+  if(SWIFT_INCLUDE_TOOLS AND NOT ${LIBSWIFT_BUILD_MODE} STREQUAL "CROSSCOMPILE")
     # Depend on the binary itself, in addition to the symlink.
     set(swift_compiler_tool_dep "swift-frontend${target_suffix}")
   endif()
diff --git a/swift/stdlib/public/Concurrency/CMakeLists.txt b/swift/stdlib/public/Concurrency/CMakeLists.txt
index 3313f56c8a6..59804ff6228 100644
--- a/swift/stdlib/public/Concurrency/CMakeLists.txt
+++ b/swift/stdlib/public/Concurrency/CMakeLists.txt
@@ -24,8 +24,8 @@ if(SWIFT_CONCURRENCY_USES_DISPATCH)
     # FIXME: we can't rely on libdispatch having been built for the
     # target at this point in the process.  Currently, we're relying
     # on soft-linking.
-    list(APPEND swift_concurrency_link_libraries
-      dispatch)
+    #list(APPEND swift_concurrency_link_libraries
+    #  dispatch)
   endif()
 elseif("${SWIFT_CONCURRENCY_GLOBAL_EXECUTOR}" STREQUAL "singlethreaded" OR
        "${SWIFT_CONCURRENCY_GLOBAL_EXECUTOR}" STREQUAL "hooked")
@@ -120,6 +120,7 @@ add_swift_target_library(swift_Concurrency ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} I
   SWIFT_MODULE_DEPENDS_WINDOWS CRT
 
   LINK_LIBRARIES ${swift_concurrency_link_libraries}
+  LINK_FLAGS "-ldispatch"
 
   C_COMPILE_FLAGS
     -Dswift_Concurrency_EXPORTS ${SWIFT_RUNTIME_CONCURRENCY_C_FLAGS}
diff --git a/swift/stdlib/public/Platform/CMakeLists.txt b/swift/stdlib/public/Platform/CMakeLists.txt
index f958d4ce899..ac6d7248606 100644
--- a/swift/stdlib/public/Platform/CMakeLists.txt
+++ b/swift/stdlib/public/Platform/CMakeLists.txt
@@ -92,7 +92,7 @@ add_swift_target_library(swiftGlibc ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} IS_SDK_O
       ${SWIFT_RUNTIME_SWIFT_COMPILE_FLAGS}
       ${SWIFT_STANDARD_LIBRARY_SWIFT_FLAGS}
       ${swift_platform_compile_flags}
-    LINK_FLAGS "${SWIFT_RUNTIME_SWIFT_LINK_FLAGS}"
+    LINK_FLAGS "${SWIFT_RUNTIME_SWIFT_LINK_FLAGS};-landroid-posix-semaphore"
     TARGET_SDKS "${swiftGlibc_target_sdks}"
     INSTALL_IN_COMPONENT sdk-overlay
     DEPENDS glibc_modulemap)
diff --git a/swift/stdlib/public/SwiftShims/CMakeLists.txt b/swift/stdlib/public/SwiftShims/CMakeLists.txt
index 23ac72bcda5..23aecfc9bc5 100644
--- a/swift/stdlib/public/SwiftShims/CMakeLists.txt
+++ b/swift/stdlib/public/SwiftShims/CMakeLists.txt
@@ -207,13 +207,13 @@ endif()
 
 swift_install_symlink_component(clang-resource-dir-symlink
   LINK_NAME clang
-  TARGET ../clang/${CLANG_VERSION}
+  TARGET ../clang/$ENV{TERMUX_CLANG_VERSION}
   DESTINATION "lib/swift")
 
 if(SWIFT_BUILD_STATIC_STDLIB)
   swift_install_symlink_component(clang-resource-dir-symlink
     LINK_NAME clang
-    TARGET ../clang/${CLANG_VERSION}
+    TARGET ../clang/$ENV{TERMUX_CLANG_VERSION}
     DESTINATION "lib/swift_static")
 endif()
 
diff --git a/swift/tools/SourceKit/cmake/modules/AddSwiftSourceKit.cmake b/swift/tools/SourceKit/cmake/modules/AddSwiftSourceKit.cmake
index 7a77e125f95..7eddfea2054 100644
--- a/swift/tools/SourceKit/cmake/modules/AddSwiftSourceKit.cmake
+++ b/swift/tools/SourceKit/cmake/modules/AddSwiftSourceKit.cmake
@@ -79,6 +79,9 @@ function(add_sourcekit_default_compiler_flags target)
   endif()
   target_compile_options(${target} PRIVATE
     -fblocks)
+  # Look in Termux sysroot for dispatch/dispatch.h from libdispatch
+  target_include_directories("${target}" SYSTEM PRIVATE
+    ${SWIFT_ANDROID_NATIVE_SYSROOT}/usr/include)
 endfunction()
 
 # Add a new SourceKit library.
@@ -165,7 +168,7 @@ macro(add_sourcekit_library name)
     endif()
   endif()
 
-  if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
+  if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux" AND NOT "${SWIFT_HOST_VARIANT_SDK}" STREQUAL "ANDROID")
     if(SOURCEKITLIB_SHARED)
       set_target_properties(${name} PROPERTIES BUILD_WITH_INSTALL_RPATH TRUE)
       set_target_properties(${name} PROPERTIES INSTALL_RPATH "$ORIGIN/../lib/swift/linux")
diff --git a/swift/tools/libSwiftSyntaxParser/CMakeLists.txt b/swift/tools/libSwiftSyntaxParser/CMakeLists.txt
index 42dda212164..2338df9072a 100644
--- a/swift/tools/libSwiftSyntaxParser/CMakeLists.txt
+++ b/swift/tools/libSwiftSyntaxParser/CMakeLists.txt
@@ -13,6 +13,9 @@ add_swift_host_library(libSwiftSyntaxParser SHARED
 if(NOT SWIFT_BUILT_STANDALONE AND NOT CMAKE_C_COMPILER_ID MATCHES Clang)
   add_dependencies(libSwiftSyntaxParser clang)
 endif()
+# Look in Termux sysroot for Block.h from libdispatch
+target_include_directories(libSwiftSyntaxParser SYSTEM PRIVATE
+  ${SWIFT_ANDROID_NATIVE_SYSROOT}/usr/include)
 target_link_libraries(libSwiftSyntaxParser PRIVATE
   swiftParse)
 set_target_properties(libSwiftSyntaxParser
diff --git a/swift-corelibs-xctest/CMakeLists.txt b/swift-corelibs-xctest/CMakeLists.txt
index 531e7c0..589930f 100644
--- a/swift-corelibs-xctest/CMakeLists.txt
+++ b/swift-corelibs-xctest/CMakeLists.txt
@@ -58,6 +58,7 @@ if(NOT CMAKE_SYSTEM_NAME STREQUAL Darwin)
     Foundation)
   if(NOT CMAKE_SYSTEM_NAME STREQUAL Windows)
     target_link_options(XCTest PRIVATE "SHELL:-no-toolchain-stdlib-rpath")
+    set_target_properties(XCTest PROPERTIES INSTALL_RPATH "$ORIGIN")
   endif()
 endif()
 set_target_properties(XCTest PROPERTIES
diff --git a/swift-crypto/Sources/CCryptoBoringSSL/CMakeLists.txt b/swift-crypto/Sources/CCryptoBoringSSL/CMakeLists.txt
index 1a890d6..639126c 100644
--- a/swift-crypto/Sources/CCryptoBoringSSL/CMakeLists.txt
+++ b/swift-crypto/Sources/CCryptoBoringSSL/CMakeLists.txt
@@ -337,7 +337,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL Darwin AND CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x
     crypto/fipsmodule/vpaes-x86_64.mac.x86_64.S
     crypto/fipsmodule/x86_64-mont.mac.x86_64.S
     crypto/fipsmodule/x86_64-mont5.mac.x86_64.S)
-elseif(CMAKE_SYSTEM_NAME STREQUAL Linux AND CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64")
+elseif(CMAKE_SYSTEM_NAME MATCHES "Linux|Android" AND CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64")
   target_sources(CCryptoBoringSSL PRIVATE
     crypto/chacha/chacha-x86_64.linux.x86_64.S
     crypto/cipher_extra/aes128gcmsiv-x86_64.linux.x86_64.S
@@ -368,7 +368,7 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL Darwin AND CMAKE_SYSTEM_PROCESSOR MATCHES "arm
     crypto/fipsmodule/sha256-armv8.ios.aarch64.S
     crypto/fipsmodule/sha512-armv8.ios.aarch64.S
     crypto/fipsmodule/vpaes-armv8.ios.aarch64.S)
-elseif(CMAKE_SYSTEM_NAME STREQUAL Linux AND CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|aarch64")
+elseif(CMAKE_SYSTEM_NAME MATCHES "Linux|Android" AND CMAKE_SYSTEM_PROCESSOR MATCHES "arm64|aarch64")
   target_sources(CCryptoBoringSSL PRIVATE
     crypto/chacha/chacha-armv8.linux.aarch64.S
     crypto/fipsmodule/aesv8-armx64.linux.aarch64.S