OpenCV C ++ Linux g ++编译

Question

I just installed OpenCV-3.4.1 on Ubuntu 18.04. I am able to compile my C++ files only when I run the g++ command with pkg-config --cflags --libs opencv Is it possible for me to compile the c++ file without using these additional flags How can I tell g++ to automatically look at /usr/include/opencv for the .h files everytime

Answer 1

For adding to the include path see this question: How to add a default include path for GCC in Linux?

A better solution however is to write a shell script to compile your code rather than having to type in the command line every time.

The best solution is to use a proper build system which will save you a lot of pain in the future, just a few of the many available options:

• GNU make
• cmake
• google gyp
• google gn
• ninja