diff --git a/swift/utils/build-script-impl b/swift/utils/build-script-impl
index b1d060328bc..218c9215260 100755
--- a/swift/utils/build-script-impl
+++ b/swift/utils/build-script-impl
@@ -1745,6 +1753,13 @@ for host in "${ALL_HOSTS[@]}"; do
                         -DLLVM_TABLEGEN=$(build_directory "${LOCAL_HOST}" llvm)/bin/llvm-tblgen
                         -DCLANG_TABLEGEN=$(build_directory "${LOCAL_HOST}" llvm)/bin/clang-tblgen
                         -DLLVM_NATIVE_BUILD=$(build_directory "${LOCAL_HOST}" llvm)
+                        -DCMAKE_EXE_LINKER_FLAGS="$LDFLAGS --target=$CCTERMUX_HOST_PLATFORM"
+                        -DCMAKE_MODULE_LINKER_FLAGS="$LDFLAGS --target=$CCTERMUX_HOST_PLATFORM"
+                        -DCMAKE_SHARED_LINKER_FLAGS="$LDFLAGS --target=$CCTERMUX_HOST_PLATFORM"
+                        -DCMAKE_SYSTEM_NAME=Android
+                        -DCMAKE_SYSTEM_VERSION=@TERMUX_PKG_API_LEVEL@
+                        -DCMAKE_SYSTEM_PROCESSOR=@TERMUX_ARCH@
+                        -DCMAKE_ANDROID_STANDALONE_TOOLCHAIN="@TERMUX_STANDALONE_TOOLCHAIN@"
                     )
                 fi
 
@@ -2471,7 +2480,7 @@ for host in "${ALL_HOSTS[@]}"; do
             elif [[ "${ANDROID_DATA}" ]] ; then
               HOST_CXX_HEADERS_DIR="$PREFIX/include/c++"
             else # Linux
-              HOST_CXX_HEADERS_DIR="/usr/include/c++"
+              HOST_CXX_HEADERS_DIR="@TERMUX_STANDALONE_TOOLCHAIN@/sysroot/usr/include/c++"
             fi
 
             # Find the path in which the local clang build is expecting to find