我希望获得安装Andreas Mueller的MATLAB bindings for Global Probability of Boundary的帮助。
我希望我的问题不会在我的安装中根深蒂固，所以我将首先描述眼前的问题，以下段落将说明实现的一些尝试。
根据自述文件中Mueller的说明，我尽力安装CUDA，ACML和GCC（当前在RHEL 7上运行）。成功构建/安装库libdamascene.so之后，我在/etc/ld.so.conf.d/中包含了一个txt文件，其中包括libdamascene.so的路径。当我使用ldconfig -p | grep libdamascene.so时会显示。
当我打开MATLAB并尝试构建MEX文件（使用GCC 6.3）时，我得到
Error using mex:
In file included from ../damascene-python-and-matlab-bindings-master/bindings/gpb_mex.c: 3: 0:
../damascene-python-and-matlab-bindings-master/bindings/gpb.h: 10: 143: error: expected ';', ',' or ')' before '=' token
void gpb(const unsigned int* in)image, unsigned int width, unsigned int height, float* border, int*textons, float* orientations, int device_num=0);
接下来我会收集到一些错误，原因是编译器无法正确读取标头。
我试图做的一件事就是简单地删除device_num = 0的声明，并将其显式初始化到gpb_mex.c函数调用中。这个结果更加模糊。
Error using mex
/tmp/mex_1295917814264136_135235/gpb_mex.o: In function 'mexFunction':
gpb_mex.c: (.text+0x161): undefined reference to gpb
collect2: error: ld returned 1 exit status.
这个错误使我觉得我的库存在问题，这比调试更具挑战性。我不会全力以赴（按需提供）来成功构建该库，但让我总结一下：
gpuacml（我只能找到一个）。gpu_architecture主文件中的CMakelists.txt从sm_20更改为sm_70。我最大的问题是：您认为这确实是一个错误构建的库的问题，还是还有其他遗漏的问题？有什么方法可以检查库libdamascene.so是否正常工作？
请让我知道如何澄清我的情况。非常感谢！
编辑：我要提供其他数据。
当我尝试编译MEX文件时，这是MATLAB的输出。
mex -v GCC='/usr/bin/gcc63' G++='/usr/bin/g++63' gpb_mex.c
Verbose mode is on.
... Looking for compiler 'gcc' ...
... Executing command 'which gcc' ...Yes ('/usr/bin/gcc').
... Executing command 'gcc -print-file-name=libstdc++.so' ...Yes ('/usr/lib/gcc/x86_64-redhat-linux/4.8.5/libstdc++.so').
Found installed compiler 'gcc'.
Options file details
-------------------------------------------------------------------
Compiler location: /usr/bin/gcc63
Options file: /home/clusterbomb/.matlab/R2018b/mex_C_glnxa64.xml
CMDLINE2 : /usr/bin/gcc63 -pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64 -shared -O -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map" /tmp/mex_1326595352957888_135235/gpb_mex.o /tmp/mex_1326595352957888_135235/c_mexapi_version.o -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++ -o gpb_mex.mexa64
CC : /usr/bin/gcc63
DEFINES : -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE
MATLABMEX : -DMATLAB_MEX_FILE
CFLAGS : -fexceptions -fPIC -fno-omit-frame-pointer -pthread
INCLUDE : -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include"
COPTIMFLAGS : -O2 -fwrapv -DNDEBUG
CDEBUGFLAGS : -g
LD : /usr/bin/gcc63
LDFLAGS : -pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64
LDTYPE : -shared
FUNCTIONMAP : "/usr/local/MATLAB/R2018b/extern/lib/glnxa64/mexFunction.map"
VERSIONMAP : "/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map"
LINKEXPORT : -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/mexFunction.map"
LINKEXPORTVER : -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map"
LINKLIBS : -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++
LDOPTIMFLAGS : -O
LDDEBUGFLAGS : -g
MWCPPLIB : "/usr/local/MATLAB/R2018b/sys/os/glnxa64/libstdc++.so.6"
OBJEXT : .o
LDEXT : .mexa64
SETENV : CC="/usr/bin/gcc63"
CXX="g++"
CFLAGS="-fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE "
CXXFLAGS="-fexceptions -fPIC -fno-omit-frame-pointer -pthread -std=c++11 -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE "
COPTIMFLAGS="-O2 -fwrapv -DNDEBUG"
CXXOPTIMFLAGS="-O2 -fwrapv -DNDEBUG"
CDEBUGFLAGS="-g"
CXXDEBUGFLAGS="-g"
LD="/usr/bin/gcc63"
LDXX="g++"
LDFLAGS="-pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64 -shared -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++ -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/mexFunction.map""
LDDEBUGFLAGS="-g"
GCC : /usr/bin/gcc63
CPPLIBS : /usr/lib/gcc/x86_64-redhat-linux/4.8.5/libstdc++.so
MATLABROOT : /usr/local/MATLAB/R2018b
ARCH : glnxa64
SRC : "/home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex.c";"/usr/local/MATLAB/R2018b/extern/version/c_mexapi_version.c"
OBJ : /tmp/mex_1326595352957888_135235/gpb_mex.o;/tmp/mex_1326595352957888_135235/c_mexapi_version.o
OBJS : /tmp/mex_1326595352957888_135235/gpb_mex.o /tmp/mex_1326595352957888_135235/c_mexapi_version.o
SRCROOT : /home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex
DEF : /tmp/mex_1326595352957888_135235/gpb_mex.def
EXP : "gpb_mex.exp"
LIB : "gpb_mex.lib"
EXE : gpb_mex.mexa64
ILK : "gpb_mex.ilk"
MANIFEST : "gpb_mex.mexa64.manifest"
TEMPNAME : gpb_mex
EXEDIR :
EXENAME : gpb_mex
G++ : /usr/bin/g++63
OPTIM : -O2 -fwrapv -DNDEBUG
LINKOPTIM : -O
CMDLINE1_0 : /usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex.c" -o /tmp/mex_1326595352957888_135235/gpb_mex.o
CMDLINE1_1 : /usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/usr/local/MATLAB/R2018b/extern/version/c_mexapi_version.c" -o /tmp/mex_1326595352957888_135235/c_mexapi_version.o
-------------------------------------------------------------------
Building with 'gcc'.
/usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex.c" -o /tmp/mex_1326595352957888_135235/gpb_mex.o
/usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/usr/local/MATLAB/R2018b/extern/version/c_mexapi_version.c" -o /tmp/mex_1326595352957888_135235/c_mexapi_version.o
/usr/bin/gcc63 -pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64 -shared -O -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map" /tmp/mex_1326595352957888_135235/gpb_mex.o /tmp/mex_1326595352957888_135235/c_mexapi_version.o -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++ -o gpb_mex.mexa64
Error using mex
/tmp/mex_1326595352957888_135235/gpb_mex.o: In function `mexFunction':
gpb_mex.c:(.text+0x161): undefined reference to `gpb'
collect2: error: ld returned 1 exit status
这是头文件gpb.h（编辑后删除了device_num=0）：
void gpb(const unsigned int* in_image,unsigned int width,unsigned int height, float* border, int* textons, float* orientations, int device_num);
这是gpb_mex.c文件，其中最后一行中声明的device_num的添加有所更改：
#include <mex.h>
#include "gpb.h"
void mexFunction(int nOut, mxArray *pOut[],
int nIn, const mxArray *pIn[])
{
mwSize width, height;
float* borders;
float* orientations;
int* textons;
unsigned int *in_image;
mwSize dims[3];
mwSize orientation_dims[3];
if((nIn != 1) || (nOut != 3))
mexErrMsgTxt("Usage: border,textons,orientations = gpb(image)");
if (!mxIsClass(pIn[0],"uint8") || mxGetNumberOfDimensions(pIn[0]) != 3) {
mexErrMsgTxt("Usage: th argument must be a unsigned int matrix");
}
const mwSize *indims= mxGetDimensions(pIn[0]);
if (indims[0]!=4)
mexErrMsgTxt("Image needs to be of shape 4 x widht x height");
width = indims[2];
height = indims[1];
mexPrintf("width %d, height %d\n",width,height);
mexPrintf("Element-size: %d, sizeof(int): %d, sizeof(char) %d\n",mxGetElementSize(pIn[0]),sizeof(int),sizeof(unsigned char));
dims[0]=width; dims[1]=height; //for rgb0
mexPrintf("width: %d height: %d\n",width, height);
pOut[0]=mxCreateNumericMatrix(height,width,mxSINGLE_CLASS,mxREAL);
pOut[1]=mxCreateNumericMatrix(height,width,mxINT32_CLASS,mxREAL);
orientation_dims[0]=width; orientation_dims[1]=height; orientation_dims[2]=8;
pOut[2]=mxCreateNumericArray(3,orientation_dims,mxSINGLE_CLASS,mxREAL);
borders=(float*) mxGetPr(pOut[0]);
textons=(int*) mxGetPr(pOut[1]);
orientations=(float*) mxGetPr(pOut[2]);
in_image = (unsigned int*) mxGetData(pIn[0]);
gpb(in_image,height,width,borders,textons,orientations, 0);
}
很高兴根据需要提供更多的源代码，但是其余的将从amueller的存储库中直接删除（上面的链接）。
编辑2：
使用-L导致权限错误，我在Linux终端中由sudo chmod 755 libdamascene.so解决了该错误。
因此，好消息是matlab能够找到libdamascene，这在获得许可后被证明可以向前发展。不幸的是，编译器仍在努力。
mex -v GCC='/usr/bin/gcc63' gpb_mex.c -L</home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/build/libdamascene.so>
Verbose mode is on.
... Looking for compiler 'gcc' ...
... Executing command 'which gcc' ...Yes ('/usr/bin/gcc').
... Executing command 'gcc -print-file-name=libstdc++.so' ...Yes ('/usr/lib/gcc/x86_64-redhat-linux/4.8.5/libstdc++.so').
Found installed compiler 'gcc'.
Options file details
-------------------------------------------------------------------
Compiler location: /usr/bin/gcc63
Options file: /home/clusterbomb/.matlab/R2018b/mex_C_glnxa64.xml
CMDLINE2 : /usr/bin/gcc63 -pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64 -shared -O -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map" /tmp/mex_1363958469865432_171081/gpb_mex.o /tmp/mex_1363958469865432_171081/c_mexapi_version.o -L</home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/build/libdamascene.so> -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++ -o gpb_mex.mexa64
CC : /usr/bin/gcc63
DEFINES : -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE
MATLABMEX : -DMATLAB_MEX_FILE
CFLAGS : -fexceptions -fPIC -fno-omit-frame-pointer -pthread
INCLUDE : -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include"
COPTIMFLAGS : -O2 -fwrapv -DNDEBUG
CDEBUGFLAGS : -g
LD : /usr/bin/gcc63
LDFLAGS : -pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64
LDTYPE : -shared
FUNCTIONMAP : "/usr/local/MATLAB/R2018b/extern/lib/glnxa64/mexFunction.map"
VERSIONMAP : "/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map"
LINKEXPORT : -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/mexFunction.map"
LINKEXPORTVER : -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map"
LINKLIBS : -L</home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/build/libdamascene.so> -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++
LDOPTIMFLAGS : -O
LDDEBUGFLAGS : -g
MWCPPLIB : "/usr/local/MATLAB/R2018b/sys/os/glnxa64/libstdc++.so.6"
OBJEXT : .o
LDEXT : .mexa64
SETENV : CC="/usr/bin/gcc63"
CXX="g++"
CFLAGS="-fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE "
CXXFLAGS="-fexceptions -fPIC -fno-omit-frame-pointer -pthread -std=c++11 -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE "
COPTIMFLAGS="-O2 -fwrapv -DNDEBUG"
CXXOPTIMFLAGS="-O2 -fwrapv -DNDEBUG"
CDEBUGFLAGS="-g"
CXXDEBUGFLAGS="-g"
LD="/usr/bin/gcc63"
LDXX="g++"
LDFLAGS="-pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64 -shared -L</home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/build/libdamascene.so> -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++ -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/mexFunction.map""
LDDEBUGFLAGS="-g"
GCC : /usr/bin/gcc63
CPPLIBS : /usr/lib/gcc/x86_64-redhat-linux/4.8.5/libstdc++.so
MATLABROOT : /usr/local/MATLAB/R2018b
ARCH : glnxa64
SRC : "/home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex.c";"/usr/local/MATLAB/R2018b/extern/version/c_mexapi_version.c"
OBJ : /tmp/mex_1363958469865432_171081/gpb_mex.o;/tmp/mex_1363958469865432_171081/c_mexapi_version.o
OBJS : /tmp/mex_1363958469865432_171081/gpb_mex.o /tmp/mex_1363958469865432_171081/c_mexapi_version.o
SRCROOT : /home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex
DEF : /tmp/mex_1363958469865432_171081/gpb_mex.def
EXP : "gpb_mex.exp"
LIB : "gpb_mex.lib"
EXE : gpb_mex.mexa64
ILK : "gpb_mex.ilk"
MANIFEST : "gpb_mex.mexa64.manifest"
TEMPNAME : gpb_mex
EXEDIR :
EXENAME : gpb_mex
OPTIM : -O2 -fwrapv -DNDEBUG
LINKOPTIM : -O
CMDLINE1_0 : /usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex.c" -o /tmp/mex_1363958469865432_171081/gpb_mex.o
CMDLINE1_1 : /usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/usr/local/MATLAB/R2018b/extern/version/c_mexapi_version.c" -o /tmp/mex_1363958469865432_171081/c_mexapi_version.o
-------------------------------------------------------------------
Building with 'gcc'.
/usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/bindings/gpb_mex.c" -o /tmp/mex_1363958469865432_171081/gpb_mex.o
/usr/bin/gcc63 -c -DMATLAB_DEFAULT_RELEASE=R2017b -DUSE_MEX_CMD -D_GNU_SOURCE -DMATLAB_MEX_FILE -I"/usr/local/MATLAB/R2018b/extern/include" -I"/usr/local/MATLAB/R2018b/simulink/include" -fexceptions -fPIC -fno-omit-frame-pointer -pthread -O2 -fwrapv -DNDEBUG "/usr/local/MATLAB/R2018b/extern/version/c_mexapi_version.c" -o /tmp/mex_1363958469865432_171081/c_mexapi_version.o
/usr/bin/gcc63 -pthread -Wl,--no-undefined -Wl,-rpath-link,/usr/local/MATLAB/R2018b/bin/glnxa64 -shared -O -Wl,--version-script,"/usr/local/MATLAB/R2018b/extern/lib/glnxa64/c_exportsmexfileversion.map" /tmp/mex_1363958469865432_171081/gpb_mex.o /tmp/mex_1363958469865432_171081/c_mexapi_version.o -L</home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/build/libdamascene.so> -L"/usr/local/MATLAB/R2018b/bin/glnxa64" -lmx -lmex -lmat -lm -lstdc++ -o gpb_mex.mexa64
/tmp/mex_1363958922594243_171081: line 2: -L/usr/local/MATLAB/R2018b/bin/glnxa64: No such file or directory
Error using mex
The command '/usr/bin/gcc63' exited with a return value '1'
我已经三重检查了目录/ usr / local / MATLAB / R2018b / bin / glnxa64存在（确实存在）。我也尝试了restoredefaultpath和rehash toolboxcache无济于事。当我使用gcc 5.3.0或本地RHEL 7 gcc时，没有变化。到目前为止，谢谢您的帮助！
答案 0 :(得分：2)
在文件damascene-python-and-matlab-bindings/bindings/gpb.h中，以下行导致错误：
void gpb(const unsigned int* in_image,unsigned int width,unsigned int height, float* border, int* textons, float* orientations, int device_num=0);
最后一个参数具有默认参数，它是C ++功能，是无效的C语法。删除=0，使其变为：
void gpb(const unsigned int* in_image,unsigned int width,unsigned int height, float* border, int* textons, float* orientations, int device_num);
接下来，当您调用gpb时，您不能依赖device_num的默认值，因此需要显式传递此值。在damascene-python-and-matlab-bindings/bindings/gpb_mex.c中，该行：
gpb(in_image,height,width,borders,textons,orientations);
需要一个附加参数0：
gpb(in_image,height,width,borders,textons,orientations,0);
我希望通过这些更改，代码可以使用C编译器正常编译。
（我意识到您已经做了这些事情...）
最后，链接器需要找到gpb函数。我认为这是在您构建的libdamascene.so库中。您需要告诉mex命令链接此库：
mex -v GCC='/usr/bin/gcc63' gpb_mex.c -ldamascene
（-l的参数前面加上lib，后面加上.a或.so，以形成库文件的名称。根据该库文件所在的位置，您可能还需要向-L<path>调用中添加一个mex参数，其中<path>是包含库文件的目录：
mex -v GCC='/usr/bin/gcc63' gpb_mex.c -L/home/clusterbomb/Downloads/GPUGPB/damascene-python-and-matlab-bindings-master/build/libdamascene.so