I am working on Ubuntu 14.04 and i want to build OpenCV(4.1.0) as static lib and create a sample program. Building OpenCV works flawlessly but i get thousands of errors when i run the test application.
Building OpenCV:
configure cmake:
cmake -D CMAKE_BUILD_TYPE=Release -D OPENCV_GENERATE_PKGCONFIG=ON -D BUILD_SHARED_LIBS=OFF -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-4.1.0/modules -D CMAKE_INSTALL_PREFIX=/usr/local/opencv ..
build:
make -j8
install:
sudo make install
pkg-config setup:
sudo cp unix-install/opencv4.pc /usr/lib/x86_64-linux-gnu/pkgconfig/
Sample Program
<figure><figcaption>TestApp.cpp</figcaption>#include <stdio.h>
#include <opencv2/opencv.hpp>
int main( int argc, char** argv )
{
cv::Mat testmat;
printf("Test\n");
return 0;
} build:
g++ TestApp.cpp -o TestApp `pkg-config --cflags --libs opencv4`
- I get these errors: Full Console.log > In function > `cvImageWidget_class_init(void, > void)': > window_gtk.cpp:(.text._ZL24cvImageWidget_class_initPvS_+0xa): > undefined reference to > `gtk_widget_get_type' > window_gtk.cpp:(.text._ZL24cvImageWidget_class_initPvS_+0x15): > undefined reference to > `g_type_class_peek' > window_gtk.cpp:(.text._ZL24cvImageWidget_class_initPvS_+0x20): > undefined reference to > `g_type_check_class_cast' > /usr/local/opencv/lib/libopencv_highgui.a(window_gtk.cpp.o): > In function > `icvOnTrackbar(_GtkWidget, > void)': > window_gtk.cpp:(.text._ZL13icvOnTrackbarP10_GtkWidgetPv+0xd): > undefined reference to > `gtk_range_get_type' > window_gtk.cpp:(.text._ZL13icvOnTrackbarP10_GtkWidgetPv+0x18): > undefined reference to > `g_type_check_instance_cast' > window_gtk.cpp:(.text._ZL13icvOnTrackbarP10_GtkWidgetPv+0x20): > undefined reference to > `gtk_range_get_value' > /usr/local/opencv/lib/libopencv_highgui.a(window_gtk.cpp.o): > In function > `std::_Sp_counted_ptr_inplace<CvWindow, > std::allocator<CvWindow>, > (__gnu_cxx::_Lock_policy)2>::_M_dispose()': > window_gtk.cpp:(.text._ZNSt23_Sp_counted_ptr_inplaceI8CvWindowSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv[_ZNSt23_Sp_counted_ptr_inplaceI8CvWindowSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv]+0x12): undefined reference to > `gtk_widget_destroy' > /usr/local/opencv/lib/libopencv_highgui.a(window_gtk.cpp.o): > In function > `icvWindowThreadLoop(void)': > window_gtk.cpp:(.text._ZL19icvWindowThreadLoopPv+0x41): > undefined reference to > `gtk_main_iteration_do' > window_gtk.cpp:(.text._ZL19icvWindowThreadLoopPv+0x53): > undefined reference to > `g_usleep' > window_gtk.cpp:(.text._ZL19icvWindowThreadLoopPv+0x58): > undefined reference to > `g_thread_yield' > window_gtk.cpp:(.text._ZL19icvWindowThreadLoopPv+0x113): > undefined reference to > `gtk_main_iteration_do' > window_gtk.cpp:(.text._ZL19icvWindowThreadLoopPv+0x11d): > undefined reference to > `g_usleep' > window_gtk.cpp:(.text._ZL19icvWindowThreadLoopPv+0x122): > undefined reference to > `g_thread_yield' > /usr/local/opencv/lib/libopencv_highgui.a(window_gtk.cpp.o): > In function > `cvImageWidget_size_request(_GtkWidget, > _GtkRequisition*)': window_gtk.cpp:(.text._ZL26cvImageWidget_size_requestP10_GtkWidgetP15_GtkRequisition+0x19): > undefined reference to > `gtk_widget_get_type'
I would be thankful for any help.
