diff --git a/README.md b/README.md
index a2b7499a5..0c542103c 100755
--- a/README.md
+++ b/README.md
@@ -1100,6 +1100,7 @@ Winlin
 [bug #474]: https://github.com/simple-rtmp-server/srs/issues/474
 [bug #484]: https://github.com/simple-rtmp-server/srs/issues/484
 [bug #485]: https://github.com/simple-rtmp-server/srs/issues/485
+[bug #495]: https://github.com/simple-rtmp-server/srs/issues/495
 [bug #475]: https://github.com/simple-rtmp-server/srs/issues/475
 [bug #458]: https://github.com/simple-rtmp-server/srs/issues/458
 [bug #454]: https://github.com/simple-rtmp-server/srs/issues/454
diff --git a/trunk/auto/auto_headers.sh b/trunk/auto/auto_headers.sh
index 7297cb33f..4fa2ecd9a 100755
--- a/trunk/auto/auto_headers.sh
+++ b/trunk/auto/auto_headers.sh
@@ -58,6 +58,11 @@ fi
 if [ $SRS_CUBIE = YES ]; then
     srs_define_macro "SRS_CUBIE" $SRS_AUTO_HEADERS_H
 fi
+if [ $SRS_EXPORT_LIBRTMP_PROJECT != NO ]; then
+    echo "#define SRS_EXPORT_LIBRTMP" >> $SRS_AUTO_HEADERS_H
+else
+    echo "#undef SRS_EXPORT_LIBRTMP" >> $SRS_AUTO_HEADERS_H
+fi
 
 echo "" >> $SRS_AUTO_HEADERS_H
 
diff --git a/trunk/src/kernel/srs_kernel_aac.cpp b/trunk/src/kernel/srs_kernel_aac.cpp
index fcd1b18e5..34e65bc8c 100644
--- a/trunk/src/kernel/srs_kernel_aac.cpp
+++ b/trunk/src/kernel/srs_kernel_aac.cpp
@@ -23,6 +23,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_kernel_aac.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 // for srs-librtmp, @see https://github.com/simple-rtmp-server/srs/issues/213
 #ifndef _WIN32
 #include <unistd.h>
@@ -218,3 +220,5 @@ int SrsAacEncoder::write_audio(int64_t timestamp, char* data, int size)
     return ret;
 }
 
+#endif
+
diff --git a/trunk/src/kernel/srs_kernel_aac.hpp b/trunk/src/kernel/srs_kernel_aac.hpp
index b334726c2..30c08511d 100644
--- a/trunk/src/kernel/srs_kernel_aac.hpp
+++ b/trunk/src/kernel/srs_kernel_aac.hpp
@@ -29,6 +29,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 #include <srs_core.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 #include <string>
 
 #include <srs_kernel_codec.hpp>
@@ -71,3 +73,5 @@ public:
 
 #endif
 
+#endif
+
diff --git a/trunk/src/kernel/srs_kernel_codec.cpp b/trunk/src/kernel/srs_kernel_codec.cpp
index 6035caf26..d7d8535b9 100644
--- a/trunk/src/kernel/srs_kernel_codec.cpp
+++ b/trunk/src/kernel/srs_kernel_codec.cpp
@@ -380,6 +380,8 @@ int SrsCodecSample::add_sample_unit(char* bytes, int size)
     return ret;
 }
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 SrsAvcAacCodec::SrsAvcAacCodec()
 {
     avc_parse_sps               = true;
@@ -1225,3 +1227,5 @@ int SrsAvcAacCodec::avc_demux_ibmf_format(SrsBuffer* stream, SrsCodecSample* sam
     return ret;
 }
 
+#endif
+
diff --git a/trunk/src/kernel/srs_kernel_codec.hpp b/trunk/src/kernel/srs_kernel_codec.hpp
index 4b5d4d50b..9cd191716 100644
--- a/trunk/src/kernel/srs_kernel_codec.hpp
+++ b/trunk/src/kernel/srs_kernel_codec.hpp
@@ -525,6 +525,8 @@ enum SrsAvcLevel
 };
 std::string srs_codec_avc_level2str(SrsAvcLevel level);
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 /**
 * the h264/avc and aac codec, for media stream.
 *
@@ -663,3 +665,6 @@ private:
 };
 
 #endif
+
+#endif
+
diff --git a/trunk/src/kernel/srs_kernel_mp3.cpp b/trunk/src/kernel/srs_kernel_mp3.cpp
index 857e3d001..17c94e848 100644
--- a/trunk/src/kernel/srs_kernel_mp3.cpp
+++ b/trunk/src/kernel/srs_kernel_mp3.cpp
@@ -23,6 +23,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_kernel_mp3.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 // for srs-librtmp, @see https://github.com/simple-rtmp-server/srs/issues/213
 #ifndef _WIN32
 #include <unistd.h>
@@ -125,3 +127,5 @@ int SrsMp3Encoder::write_audio(int64_t timestamp, char* data, int size)
     return writer->write(data + stream->pos(), size - stream->pos(), NULL);
 }
 
+#endif
+
diff --git a/trunk/src/kernel/srs_kernel_mp3.hpp b/trunk/src/kernel/srs_kernel_mp3.hpp
index 144aed9ce..8dab0ed33 100644
--- a/trunk/src/kernel/srs_kernel_mp3.hpp
+++ b/trunk/src/kernel/srs_kernel_mp3.hpp
@@ -29,6 +29,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 #include <srs_core.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 #include <string>
 
 class SrsBuffer;
@@ -68,3 +70,5 @@ public:
 
 #endif
 
+#endif
+
diff --git a/trunk/src/kernel/srs_kernel_ts.cpp b/trunk/src/kernel/srs_kernel_ts.cpp
index 5f4b5af27..1b3f144a1 100644
--- a/trunk/src/kernel/srs_kernel_ts.cpp
+++ b/trunk/src/kernel/srs_kernel_ts.cpp
@@ -23,6 +23,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_kernel_ts.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 // for srs-librtmp, @see https://github.com/simple-rtmp-server/srs/issues/213
 #ifndef _WIN32
 #include <unistd.h>
@@ -3224,4 +3226,5 @@ int SrsTsEncoder::flush_video()
     return ret;
 }
 
+#endif
 
diff --git a/trunk/src/kernel/srs_kernel_ts.hpp b/trunk/src/kernel/srs_kernel_ts.hpp
index 2e33501ab..0d090d881 100644
--- a/trunk/src/kernel/srs_kernel_ts.hpp
+++ b/trunk/src/kernel/srs_kernel_ts.hpp
@@ -29,6 +29,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 #include <srs_core.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 #include <string>
 #include <map>
 #include <vector>
@@ -1664,3 +1666,5 @@ private:
 
 #endif
 
+#endif
+
diff --git a/trunk/src/protocol/srs_http_stack.cpp b/trunk/src/protocol/srs_http_stack.cpp
index e1fd3a310..b19c8519b 100755
--- a/trunk/src/protocol/srs_http_stack.cpp
+++ b/trunk/src/protocol/srs_http_stack.cpp
@@ -23,6 +23,8 @@
 
 #include <srs_http_stack.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 #include <stdlib.h>
 #include <sstream>
 #include <algorithm>
@@ -777,3 +779,6 @@ char* ISrsHttpMessage::http_ts_send_buffer()
 {
     return _http_ts_send_buffer;
 }
+
+#endif
+
diff --git a/trunk/src/protocol/srs_http_stack.hpp b/trunk/src/protocol/srs_http_stack.hpp
index be8200c80..9116d51d5 100644
--- a/trunk/src/protocol/srs_http_stack.hpp
+++ b/trunk/src/protocol/srs_http_stack.hpp
@@ -29,6 +29,8 @@
 */
 #include <srs_core.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 #include <map>
 #include <string>
 #include <vector>
@@ -536,3 +538,6 @@ public:
 };
 
 #endif
+
+#endif
+
diff --git a/trunk/src/protocol/srs_rtsp_stack.cpp b/trunk/src/protocol/srs_rtsp_stack.cpp
index 90c478d36..772957fee 100644
--- a/trunk/src/protocol/srs_rtsp_stack.cpp
+++ b/trunk/src/protocol/srs_rtsp_stack.cpp
@@ -23,6 +23,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_rtsp_stack.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 #include <stdlib.h>
 #include <map>
 using namespace std;
@@ -1182,3 +1184,5 @@ int SrsRtspStack::recv_token(std::string& token, SrsRtspTokenState& state, char
 
 #endif
 
+#endif
+
diff --git a/trunk/src/protocol/srs_rtsp_stack.hpp b/trunk/src/protocol/srs_rtsp_stack.hpp
index d8b83c82f..a814033c7 100644
--- a/trunk/src/protocol/srs_rtsp_stack.hpp
+++ b/trunk/src/protocol/srs_rtsp_stack.hpp
@@ -30,6 +30,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_core.hpp>
 
+#if !defined(SRS_EXPORT_LIBRTMP)
+
 #include <string>
 #include <sstream>
 
@@ -714,3 +716,5 @@ private:
 
 #endif
 
+#endif
+