matlab用Fn(u)函数时会出错，不是函数问题，错误如下，求大神指点

在同学电脑上都可以，但是我电脑就是无法运行函数，这是怎么回事啊。。。。要哭了Applications/MATLAB_R2013a.app/bin/mex-c-O-DMAT... 在同学电脑上都可以，但是我电脑就是无法运行函数，这是怎么回事啊。。。。要哭了

Applications/MATLAB_R2013a.app/bin/mex -c -O -DMATLAB_MEX_FILE -I/Applications/MATLAB_R2013a.app/stateflow/c/mex/include -I/Applications/MATLAB_R2013a.app/stateflow/c/debugger/include turbine_sfun.c
xcrun: error: SDK "macosx10.7" cannot be located
clang: warning: no such sysroot directory: '-mmacosx-version-min=10.7'
In file included from turbine_sfun.c:3:
In file included from ./turbine_sfun.h:6:
In file included from /Applications/MATLAB_R2013a.app/stateflow/c/mex/include/sfc_sf.h:33:
In file included from /Applications/MATLAB_R2013a.app/simulink/include/mwmathutil.h:23:
/Applications/MATLAB_R2013a.app/extern/include/tmwtypes.h:819:9: error:

unknown type name 'char16_t'
typedef char16_t CHAR16_T;

^
In file included from turbine_sfun.c:3:
In file included from ./turbine_sfun.h:6:
In file included from /Applications/MATLAB_R2013a.app/stateflow/c/mex/include/sfc_sf.h:34:
/Applications/MATLAB_R2013a.app/simulink/include/simstruc.h:148:10: fatal error:

'string.h' file not found
#include <string.h>

^
2 errors generated.

mex: compile of ' "turbine_sfun.c"' failed. 展开

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