我正尝试用emscripten把我的一个项目移植到web上，我在其中使用的一个库是soloud，构建库本身编译得很好，没有错误，但是当我尝试用它编译一个例子时，我得到了一堆编译器错误。
下面是我构建库所使用的步骤：
1.下载并构建genie
1.下载soloud并将genie可执行文件放入构建文件夹
1.运行./genie --with-miniaudio-only gmake
1.将cd复制到gmake目录并运行emmake make
这可以很好地编译，没有任何错误，但是当我尝试使用emcc main.cpp libsoloud_static.a -I ../include -o index.html构建simplest示例时，我得到了这些错误

emcc: warning: libsoloud_static.a: archive is missing an index; Use emar when creating libraries to ensure an index is created [-Wemcc]
emcc: warning: libsoloud_static.a: adding index [-Wemcc]
error: undefined symbol: _ZN6SoLoud6Soloud19getActiveVoiceCountEv (referenced by top-level compiled C/C++ code)
warning: Link with `-sLLD_REPORT_UNDEFINED` to get more information on undefined symbols
warning: To disable errors for undefined symbols use `-sERROR_ON_UNDEFINED_SYMBOLS=0`
warning: __ZN6SoLoud6Soloud19getActiveVoiceCountEv may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6Soloud4initEjjjjj (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6Soloud4initEjjjjj may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6Soloud4playERNS_11AudioSourceEffbj (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6Soloud4playERNS_11AudioSourceEffbj may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6Soloud6deinitEv (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6Soloud6deinitEv may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6SoloudC1Ev (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6SoloudC1Ev may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6SoloudD1Ev (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6SoloudD1Ev may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6Speech7setTextEPKc (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6Speech7setTextEPKc may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6SpeechC1Ev (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6SpeechC1Ev may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6SpeechD1Ev (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6SpeechD1Ev may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
error: undefined symbol: _ZN6SoLoud6Thread5sleepEi (referenced by top-level compiled C/C++ code)
warning: __ZN6SoLoud6Thread5sleepEi may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
Error: Aborting compilation due to previous errors

我哪里做错了？