在Qt项目中包含dlib

Question

I am trying to add dlib library to my Qt5 project. I've build dlib with gcc 4.9.3 using CMake without NO_GUI_SUPPORT (ie with GUI) and without ISO_CPP_ONLY . I've compiled it into shared library with CMAKE_INSTALL_PREFIX = my_qt_project_dir/dlib , installed and included it into my project:

# DLIB
INCLUDEPATH += $$PWD/dlib/include/
LIBS += -L$$PWD/dlib/lib/
LIBS += -ldlib

I am including this headers in code:

#include <dlib/image_processing.h>
#include <dlib/gui_widgets.h>
#include <dlib/image_io.h>
#include <dlib/dir_nav.h>
#include <dlib/opencv.h>

but during compilation get this errors

some of them:

/dlib/include/dlib/image_processing/../matrix/matrix_la.h:64:45: error: macro "sign" passed 2 arguments, but takes just 1
/dlib/include/dlib/image_processing/../matrix/matrix_math_functions.h:83:27: error: expected unqualified-id before 'const'
/dlib/include/dlib/image_processing/../matrix/matrix_la.h:1034:9: error: 'matrix' has not been declared

I am using CMake 3.3.1, QtCreator 3.4.2, Qt 5.4.2, gcc 4.9.3 running on gentoo 4.0.9.

How to deal with this?

Answer 1

Someone #defined the word "sign" and it's stomping on the code. Figure out what code creates the sign #define and #include it after other headers.