找不到头文件，即使它位于 -I 指定的目录中

Question

我正在尝试使用 Mingw 编译 Simulink S-Function。

我的 Makefile 包含以下内容：

MINGWPATH=D:/Mingw
MATLABROOT=C:\PROGRA~1\MATLAB\R2014b
CC=$(MINGWPATH)/bin/gcc 
MEXFLAG=-shared -DMATLAB_MEX_FILE -I$(MATLABROOT)\simulink\include -I$(MATLABROOT)\extern\include -Wl,--export-all-symbols $(LIBS) $(MEXSRC) -o $(MEXTGT).mexw64

LIBS= -L$(MATLABROOT)/bin/win64 -L$(MATLABROOT)/extern/lib/win64/microsoft -lmex -lmx -lmwlapack -lmwblas -leng

MEXTGT=SFCN_Block
MEXSRC=SFCN_Block.cpp
all:$(MEXTGT)

$(MEXTGT): $(MEXSRC)
    $(CC) $(MEXFLAG) -ladvapi32 -luser32 -lgdi32 -lkernel32 -lmingwex

SFCN_Block.cpp 文件在 C:\PROGRA~1\MATLAB\R2014b\simulink\include.

中包含一个 #include 'simstruc.h' 和 simstruc.h 是

但是我收到以下错误：

SFCN_Block.cpp:12:22: fatal error: simstruc.h: No such file or directory
 #include "simstruc.h"
                      ^

怎么可能出错？

（我的 Matlab 版本是 Windows 7 下的 R2014b（64 位），我正在尝试使用 Mingw 进行编译。我的 Makefile 基于 this question 上接受的答案）。

Answer 1

以下是遇到的一些类似问题：http://www.mathworks.com/matlabcentral/newsreader/view_thread/150266

问题（来自link以上）：

I'm using S-Function Builder to read files into my simulink model. I inherited the code and model from another developer. I have to rebuild the S-Function every time I want to change the filename. So it stopped working today for, as far as I can tell, no reason whatsoever. When I press the build button, I get something to the effect of "Linker Error 1083. No such file or Directory "simstruc.h" Every S-function Builder in every model now fails with this same error. I searched for simstruc.h and found it in a couple of directories in the matlab path. I'm thinking that the MEX linker or compiler or whatever is building the S-function for some reason now doesn't know where to look for simstruc.h, maybe it's path was somehow corrupted?

回答（来自同link）：

Hi, Here is the fix, you can overwrite the r2010b for the following file from release r2010a

C:\Program Files\MATLAB\R2010b\bin\mex.bat

C:\Program Files\MATLAB\R2010b\bin\mex.pl

C:\Program Files\MATLAB\R2010b\bin\mexext.bat

C:\Program Files\MATLAB\R2010b\bin\mexsetup.pm

C:\Program Files\MATLAB\R2010b\bin\mexutils.pm

I am not sure which one is the problem file, but it work this way.

Answer 2

将 Makefile 的第一行更改为：

MINGWPATH=D:/Mingw
MATLABROOT="C:\Program Files\MATLAB\R2014b"
SIMULINK_INCLUDE_PATH=$(MATLABROOT)/simulink/include
MATLAB_EXTERN_INCLUDE_PATH=$(MATLABROOT)/extern/include
CC=$(MINGWPATH)/bin/gcc 
MEXFLAG=-shared -DMATLAB_MEX_FILE -IBlocks -IDesignPatterns -ILogging -I$(SIMULINK_INCLUDE_PATH) -I$(MATLAB_EXTERN_INCLUDE_PATH) -Wl,--export-all-symbols $(LIBS) $(MEXSRC) -o $(MEXTGT).mexw64

解决了 No such file or directory 错误。谁能解释一下为什么？

现在我得到以下错误：

C:\Program Files\MATLAB\R2014b/bin/win64/libmex.dll: file not recognized: File format not recognized

但这是另一个问题。

找不到头文件，即使它位于 -I 指定的目录中

Header file not found even though it is in a directory specified by -I

c++

matlab

makefile

simulink