hannescam
commented
2 years ago i solved the issue with a other compiling command: g++ test.cpp -o test.o -Wall -O3 -g -Wextra -Wno-unused-parameter -I. -c && g++ test.o -o test -L ../lib/ -l rgbmatrix -lrt -lm -lpthread
hello, i want to make a timer with the c++ api of this project the code: `#include "led-matrix.h"
using rgb_matrix::RGBMatrix;
int main(int argc, char *argv) { RGBMatrix::Options my_defaults; my_defaults.hardware_mapping = "regular"; my_defaults.chain_length = 1; my_defaults.cols = 64; my_defaults.rows = 64; my_defaults.show_refresh_rate = true; rgb_matrix::RuntimeOptions runtime_defaults; runtime_defaults.drop_privileges = 1; RGBMatrix matrix = RGBMatrix::CreateFromFlags(&argc, &argv, &my_defaults, &runtime_defaults); if (matrix == NULL) { PrintMatrixFlags(stderr, my_defaults, runtime_defaults); return 1; } delete matrix; }`
could anyone help me thankyou
the command to compile: pi@led-panel:~/rpi-rgb-led-matrix/include $ g++ test.cpp -o test
the error: /usr/bin/ld: /tmp/ccPlx9WR.o: in function
main': test.cpp:(.text+0x14): undefined reference torgb_matrix::RGBMatrix::Options::Options()' /usr/bin/ld: test.cpp:(.text+0x48): undefined reference torgb_matrix::RuntimeOptions::RuntimeOptions()' /usr/bin/ld: test.cpp:(.text+0x68): undefined reference torgb_matrix::RGBMatrix::CreateFromFlags(int*, char**, rgb_matrix::RGBMatrix::Options, rgb_matrix::RuntimeOptions, bool)' /usr/bin/ld: test.cpp:(.text+0x90): undefined reference to `rgb_matrix::PrintMatrixFlags(_IO_FILE, rgb_matrix::RGBMatrix::Options const&, rgb_matrix::RuntimeOptions const&)' collect2: error: ld returned 1 exit statusand i am on a pi3 b+ with 64 bit raspbian and all examples work