diff --git a/CMakeLists.txt b/CMakeLists.txt
index 435fd8a7..fde0209e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,6 +20,13 @@ if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.24.0")
   cmake_policy(SET CMP0135 NEW)
 endif()
 
+
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+  set(SUGGEST_BUILD_BINARIES ON)
+else()
+  set(SUGGEST_BUILD_BINARIES OFF)
+endif()
+
 option(SHERPA_ONNX_ENABLE_PYTHON "Whether to build Python" OFF)
 option(SHERPA_ONNX_ENABLE_TESTS "Whether to build tests" OFF)
 option(SHERPA_ONNX_ENABLE_CHECK "Whether to build with assert" OFF)
@@ -39,13 +46,13 @@ option(SHERPA_ONNX_ENABLE_WASM_VAD "Whether to enable WASM for VAD" OFF)
 option(SHERPA_ONNX_ENABLE_WASM_VAD_ASR "Whether to enable WASM for VAD+ASR" OFF)
 option(SHERPA_ONNX_ENABLE_WASM_NODEJS "Whether to enable WASM for NodeJS" OFF)
 option(SHERPA_ONNX_ENABLE_WASM_SPEECH_ENHANCEMENT "Whether to enable WASM for speech enhancement" OFF)
-option(SHERPA_ONNX_ENABLE_BINARY "Whether to build binaries" ON)
+option(SHERPA_ONNX_ENABLE_BINARY "Whether to build binaries" ${SUGGEST_BUILD_BINARIES})
 option(SHERPA_ONNX_ENABLE_TTS "Whether to build TTS related code" ON)
 option(SHERPA_ONNX_ENABLE_SPEAKER_DIARIZATION "Whether to build speaker diarization related code" ON)
 option(SHERPA_ONNX_LINK_LIBSTDCPP_STATICALLY "True to link libstdc++ statically. Used only when BUILD_SHARED_LIBS is OFF on Linux" ON)
 option(SHERPA_ONNX_USE_PRE_INSTALLED_ONNXRUNTIME_IF_AVAILABLE "True to use pre-installed onnxruntime if available" ON)
 option(SHERPA_ONNX_ENABLE_SANITIZER "Whether to enable ubsan and asan" OFF)
-option(SHERPA_ONNX_BUILD_C_API_EXAMPLES "Whether to enable C API examples" ON)
+option(SHERPA_ONNX_BUILD_C_API_EXAMPLES "Whether to enable C API examples" ${SUGGEST_BUILD_BINARIES})
 option(SHERPA_ONNX_ENABLE_RKNN "Whether to build for RKNN NPU " OFF)
 
 set(SHERPA_ONNX_LINUX_ARM64_GPU_ONNXRUNTIME_VERSION "1.11.0" CACHE STRING "Used only for Linux ARM64 GPU. Set to 1.11.0 if you use CUDA 10.2 and cudnn8. Set it to 1.16.0 if you use CUDA 11.4 and cudnn8. Set it to 1.18.0 if you use CUDA 12.2 and cudnn8. Set it to 1.18.1 if you use CUDA 12.6 and cudnn9")
diff --git a/c-api-examples/CMakeLists.txt b/c-api-examples/CMakeLists.txt
index f11a4ec9..bbaabddf 100644
--- a/c-api-examples/CMakeLists.txt
+++ b/c-api-examples/CMakeLists.txt
@@ -1,6 +1,6 @@
 include(cargs)
 
-include_directories(${CMAKE_SOURCE_DIR})
+include_directories(${PROJECT_SOURCE_DIR})
 add_executable(decode-file-c-api decode-file-c-api.c)
 target_link_libraries(decode-file-c-api sherpa-onnx-c-api cargs)
 
diff --git a/cxx-api-examples/CMakeLists.txt b/cxx-api-examples/CMakeLists.txt
index a020f1c9..a59d280c 100644
--- a/cxx-api-examples/CMakeLists.txt
+++ b/cxx-api-examples/CMakeLists.txt
@@ -1,4 +1,4 @@
-include_directories(${CMAKE_SOURCE_DIR})
+include_directories(${PROJECT_SOURCE_DIR})
 
 add_executable(streaming-zipformer-cxx-api ./streaming-zipformer-cxx-api.cc)
 target_link_libraries(streaming-zipformer-cxx-api sherpa-onnx-cxx-api)
diff --git a/sherpa-onnx/c-api/CMakeLists.txt b/sherpa-onnx/c-api/CMakeLists.txt
index 9c8a5977..03909373 100644
--- a/sherpa-onnx/c-api/CMakeLists.txt
+++ b/sherpa-onnx/c-api/CMakeLists.txt
@@ -1,6 +1,7 @@
-include_directories(${CMAKE_SOURCE_DIR})
+include_directories(${PROJECT_SOURCE_DIR})
 add_library(sherpa-onnx-c-api c-api.cc)
 target_link_libraries(sherpa-onnx-c-api sherpa-onnx-core)
+target_include_directories(sherpa-onnx-c-api PUBLIC ${PROJECT_SOURCE_DIR})
 
 if(BUILD_SHARED_LIBS)
   target_compile_definitions(sherpa-onnx-c-api PUBLIC SHERPA_ONNX_BUILD_SHARED_LIBS=1)
@@ -9,6 +10,7 @@ endif()
 
 add_library(sherpa-onnx-cxx-api cxx-api.cc)
 target_link_libraries(sherpa-onnx-cxx-api sherpa-onnx-c-api)
+target_include_directories(sherpa-onnx-cxx-api PUBLIC ${PROJECT_SOURCE_DIR})
 
 install(
   TARGETS
diff --git a/sherpa-onnx/csrc/CMakeLists.txt b/sherpa-onnx/csrc/CMakeLists.txt
index e59a7a17..d09db762 100644
--- a/sherpa-onnx/csrc/CMakeLists.txt
+++ b/sherpa-onnx/csrc/CMakeLists.txt
@@ -1,4 +1,4 @@
-include_directories(${CMAKE_SOURCE_DIR})
+include_directories(${PROJECT_SOURCE_DIR})
 
 if(SHERPA_ONNX_ENABLE_PYTHON)
   message(STATUS "PYTHON_EXECUTABLE: ${PYTHON_EXECUTABLE}")
@@ -648,7 +648,7 @@ endforeach()
 # For clang-tidy
 add_custom_target(
   clang-tidy-check
-  clang-tidy -p ${CMAKE_BINARY_DIR}/compile_commands.json --config-file ${CMAKE_SOURCE_DIR}/.clang-tidy ${srcs_to_check}
+  clang-tidy -p ${CMAKE_BINARY_DIR}/compile_commands.json --config-file ${PROJECT_SOURCE_DIR}/.clang-tidy ${srcs_to_check}
   DEPENDS ${sources})
 
 add_custom_target(check DEPENDS clang-tidy-check)
diff --git a/sherpa-onnx/jni/CMakeLists.txt b/sherpa-onnx/jni/CMakeLists.txt
index 9e1c4952..6bbe8500 100644
--- a/sherpa-onnx/jni/CMakeLists.txt
+++ b/sherpa-onnx/jni/CMakeLists.txt
@@ -1,4 +1,4 @@
-include_directories(${CMAKE_SOURCE_DIR})
+include_directories(${PROJECT_SOURCE_DIR})
 
 if(NOT DEFINED ANDROID_ABI)
   if(NOT DEFINED ENV{JAVA_HOME})
diff --git a/sherpa-onnx/python/csrc/CMakeLists.txt b/sherpa-onnx/python/csrc/CMakeLists.txt
index 04550379..c941b0db 100644
--- a/sherpa-onnx/python/csrc/CMakeLists.txt
+++ b/sherpa-onnx/python/csrc/CMakeLists.txt
@@ -1,4 +1,4 @@
-include_directories(${CMAKE_SOURCE_DIR})
+include_directories(${PROJECT_SOURCE_DIR})
 
 set(srcs
   audio-tagging.cc
@@ -51,7 +51,7 @@ set(srcs
   wave-writer.cc
 )
 if(SHERPA_ONNX_HAS_ALSA)
-  list(APPEND srcs ${CMAKE_SOURCE_DIR}/sherpa-onnx/csrc/alsa.cc alsa.cc)
+  list(APPEND srcs ${PROJECT_SOURCE_DIR}/sherpa-onnx/csrc/alsa.cc alsa.cc)
 else()
   list(APPEND srcs faked-alsa.cc)
 endif()