G++ Failing to link ncurses even though it has the -lncurses flag [duplicate]

I'm trying to compile an ncurses file using g++. It gives this output which would suggest that it isn't linking correctly. Interestingly it compiles fine under clang++. I have ncurses installed from source and I know that it's working because it compiles under clang. Ignore the warnings at the start of the file, I'm going to work on those next. Also I know that main.cpp is godawful, I'm working on fixing that too.

CC  main.cpp ./mainmain.cpp: In function ‘int main(int, char**)’:main.cpp:34:34: warning: format not a string literal and no format arguments [-Wformat-security]   34 |  wprintw(window_one, text.c_str());      |                                  ^main.cpp:38:34: warning: format not a string literal and no format arguments [-Wformat-security]   38 |  wprintw(window_two, text.c_str());      |                                  ^/usr/bin/ld: /tmp/cct3HGZR.o: in function `main':/home/ubuntu/side-projects/slides/main.cpp:13: undefined reference to `initscr'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:14: undefined reference to `cbreak'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:16: undefined reference to `stdscr'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:16: undefined reference to `keypad'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:18: undefined reference to `start_color'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:19: undefined reference to `init_pair'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:21: undefined reference to `stdscr'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:21: undefined reference to `wbkgd'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:23: undefined reference to `LINES'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:24: undefined reference to `COLS'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:27: undefined reference to `printw'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:28: undefined reference to `refresh'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:33: undefined reference to `wmove'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:34: undefined reference to `wprintw'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:35: undefined reference to `wrefresh'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:37: undefined reference to `COLS'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:37: undefined reference to `COLS'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:37: undefined reference to `LINES'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:38: undefined reference to `wprintw'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:39: undefined reference to `wrefresh'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:41: undefined reference to `stdscr'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:41: undefined reference to `wgetch'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:45: undefined reference to `endwin'/usr/bin/ld: /tmp/cct3HGZR.o: in function `create_newwin(int, int, int, int)':/home/ubuntu/side-projects/slides/main.cpp:52: undefined reference to `newwin'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:53: undefined reference to `box'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:55: undefined reference to `wrefresh'/usr/bin/ld: /tmp/cct3HGZR.o: in function `destroy_win(_win_st*)':/home/ubuntu/side-projects/slides/main.cpp:60: undefined reference to `wborder'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:61: undefined reference to `wrefresh'/usr/bin/ld: /home/ubuntu/side-projects/slides/main.cpp:62: undefined reference to `delwin'collect2: error: ld returned 1 exit statusmake: *** [Makefile:9: all] Error 1

Here's my makefile:

CC = g++CFLAGS = -g -lncurses -WallSRC = main.cppOUT = ./main.PHONY: allall: ${SRC}        @echo "CC " ${SRC} ${OUT}        @${CC} ${CFLAGS} ${SRC} -o ${OUT}        @echo "Done".PHONY: cleanclean:        @echo "Cleaning Directory"        @rm -rf ${OUT}        @echo "Done"

And here's the C++ that I'm trying to compile:

#include <ncurses.h>#include <string>WINDOW *create_newwin(int height, int width, int starty, int startx);void destroy_win(WINDOW *local_win);int main(int argc, char *argv[]) {        WINDOW *window_one;        WINDOW *window_two;        int startx, starty, width, height;        int ch;        initscr();        cbreak();        keypad(stdscr, TRUE);        start_color();        init_pair(1, COLOR_BLUE, COLOR_RED);        bkgd(COLOR_PAIR(1));        height = LINES;        width = COLS / 2;        starty = 0;        startx = 0;        printw("Press F1 to exit");        refresh();        window_one = create_newwin(height, width, starty, startx);        std::string text = "test";        wmove(window_one, height / 2, text.size() / 2);        wprintw(window_one, text.c_str());        wrefresh(window_one);        window_two = create_newwin(LINES, COLS / 2, 0, COLS / 2);        wprintw(window_two, text.c_str());        wrefresh(window_two);        while((ch = getch()) != KEY_F(1)) {                switch(ch) {}        }        endwin();        return 0;}WINDOW *create_newwin(int height, int width, int starty, int startx) {        WINDOW *local_win;        local_win = newwin(height, width, starty, startx);        box(local_win, 0, 0);        wrefresh(local_win);        return local_win;}void destroy_win(WINDOW *local_win) {        wborder(local_win, '', '', '', '', '', '', '', '');        wrefresh(local_win);        delwin(local_win);}