Issue
Qt has been my choice of IDE for several years but this is crazy frustrating.
I'm trying to use openGL in my C project, but none of the functions have a defined reference. I google the issue and find this lovely page (second to last response). I try this out and it works flawlessly:
gcc main.c -lGL -lglut
But using the terminal instead of the built-in functionality of Qt creator is... undesirable. So I google how to add options to gcc with qt, I find this stackoverflow page, but it doesn't work, at all. And I tried all sorts of things like
QMAKE_CXXFLAGS += -lGL -lglut
and
QMAKE_CFLAGS += -lGL -lglut
and (desperately)
OPTIONS: -lGL -lglut
I don't know, I can't figure out how I'm supposed to add options to gcc in Qt so that my functions are no longer undefined.
Maybe I need a new IDE with a more straight forward compile function...
EDIT! Iskar Jarak was right, I had to add it to libs like so:
LIBS += -lGL -lglut
This is in the .pro file by the way.
Solution
Add LIBS += -lGL -lglut to your .pro file.
QMAKE_CXXFLAGS is for C++ compiler flags like -std=C++0x
Answered By - Iskar Jarak Answer Checked By - Gilberto Lyons (WPSolving Admin)