How to get the emgucv compiled on my Ubuntu 18.04? It is said to support Ubuntu

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How to get the emgucv compiled on my Ubuntu 18.04? It is said to support Ubuntu



First I am not very familiar with C++ compile process, but I have to compile the emgucv repository on Ubuntu 18.04. I follow the instruction and try to figure out things by searching through Stack Exchange.



I got every dependencies setup, then the only file I need to execute is this one.



Although it is written for 16.04, seems to work for 18.04, but the compilation throws an error. It says _MAX_DRIVE, _MAX_DIR, _MAX_PATH, DWORD, errno_t, etc. are not declared. As suggested by the comment, they are Windows-specific. The error occurs in this file. And the module that contains this file is this.


16.04


18.04


_MAX_DRIVE, _MAX_DIR, _MAX_PATH, DWORD, errno_t



My question is how to get this compiled on Ubuntu 18.04? I am very confused, since Emgucv says they support Linux (instruction at the end), and I believe others could have successfully compiled it on their Linux. I attempted to replace those constants _MAX_DRIVE, _MAX_DIR, _MAX_PATH by just numbers, the DWORD by unsigned long, and errno_t by int, then it says now GetModuleFileName, _splitpath_s are not declared. I don't know how to do. Is there anyway for this to work for Ubuntu?


_MAX_DRIVE, _MAX_DIR, _MAX_PATH


DWORD


unsigned long


errno_t


int


GetModuleFileName, _splitpath_s


[ 74%] Building CXX object Emgu.CV.Extern/tesseract/libtesseract/CMakeFiles/tesseract_ccutil.dir/tesseract-ocr.git/src/ccutil/mainblk.cpp.o
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp: In member function ‘void tesseract::CCUtil::main_setup(const char*, const char*)’:
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:77:16: error: ‘_MAX_DRIVE’ was not declared in this scope
char drive[_MAX_DRIVE];
^~~~~~~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:78:14: error: ‘_MAX_DIR’ was not declared in this scope
char dir[_MAX_DIR];
^~~~~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:79:15: error: ‘_MAX_PATH’ was not declared in this scope
char path[_MAX_PATH];
^~~~~~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:83:5: error: ‘DWORD’ was not declared in this scope
DWORD length = GetModuleFileName(nullptr, path, sizeof(path));
^~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:85:9: error: ‘length’ was not declared in this scope
if (length > 0 && length < sizeof(path)) {
^~~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:85:39: error: ‘path’ was not declared in this scope
if (length > 0 && length < sizeof(path)) {
^~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:86:7: error: ‘errno_t’ was not declared in this scope
errno_t result = _splitpath_s(path, drive, sizeof(drive),
^~~~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:88:11: error: ‘result’ was not declared in this scope
if (result == ERANGE) {
^~~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:92:17: error: ‘drive’ was not declared in this scope
datadir = drive;
^~~~~
/media/philips_cpm/data1/emgucv/Emgu.CV.Extern/tesseract/libtesseract/tesseract-ocr.git/src/ccutil/mainblk.cpp:93:18: error: ‘dir’ was not declared in this scope
datadir += dir;
^~~
Emgu.CV.Extern/tesseract/libtesseract/CMakeFiles/tesseract_ccutil.dir/build.make:302: recipe for target 'Emgu.CV.Extern/tesseract/libtesseract/CMakeFiles/tesseract_ccutil.dir/tesseract-ocr.git/src/ccutil/mainblk.cpp.o' failed
make[2]: *** [Emgu.CV.Extern/tesseract/libtesseract/CMakeFiles/tesseract_ccutil.dir/tesseract-ocr.git/src/ccutil/mainblk.cpp.o] Error 1
CMakeFiles/Makefile2:5929: recipe for target 'Emgu.CV.Extern/tesseract/libtesseract/CMakeFiles/tesseract_ccutil.dir/all' failed
make[1]: *** [Emgu.CV.Extern/tesseract/libtesseract/CMakeFiles/tesseract_ccutil.dir/all] Error 2
Makefile:162: recipe for target 'all' failed
make: *** [all] Error 2



Emgu CV compile manual for Ubuntu



The commands are summarized below


git clone https://github.com/emgucv/emgucv emgucv

cd emgucv

git submodule update --init --recursive

cd platforms/ubuntu/16.04

./apt_install_dependency.sh

./cmake_configure.sh





The errors shouldn't have anything to do with C++11. The errors are because many Windows-specific symbols aren't declared or defined. Perhaps it's because a missing header file for Linux builds of the library (to enable Windows compatibility)?
– Some programmer dude
35 mins ago







@Someprogrammerdude Thanks I edited the question. I am confused as they say they support Ubuntu and they do not mention anything about installing extra headers or something. Is there anyway for Ubuntu to recognize those Windows symbols on Ubuntu?
– Ralph B.
18 secs ago









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