~/code/SDL2-2.0.3$ pkg-config --cflags sdl2 SDL2_image SDL2_mixer Package SDL2_image was not found in the pkg-config search path. Perhaps you should add the directory containing `SDL2_image.pc' to the PKG_CONFIG_PATH environment variable No package 'SDL2_image' found Package SDL2_mixer was not found in the pkg-config search path. Perhaps you should add the directory containing `SDL2_mixer.pc' to the PKG_CONFIG_PATH environment variable No package 'SDL2_mixer' found
What does the -I flag do? I found the header files in this location: /usr/local/include/SDL2$ ls begin_code.h SDL.h SDL_pixels.h SDL_test_compare.h close_code.h SDL_haptic.h SDL_platform.h SDL_test_crc32.h SDL_assert.h SDL_hints.h SDL_power.h SDL_test_font.h SDL_atomic.h SDL_joystick.h SDL_quit.h SDL_test_fuzzer.h SDL_audio.h SDL_keyboard.h SDL_rect.h SDL_test.h SDL_bits.h SDL_keycode.h SDL_render.h SDL_test_harness.h SDL_blendmode.h SDL_loadso.h SDL_revision.h SDL_test_images.h SDL_clipboard.h SDL_log.h SDL_rwops.h SDL_test_log.h SDL_config.h SDL_main.h SDL_scancode.h SDL_test_md5.h SDL_cpuinfo.h SDL_messagebox.h SDL_shape.h SDL_test_random.h SDL_endian.h SDL_mouse.h SDL_stdinc.h SDL_thread.h SDL_error.h SDL_mutex.h SDL_surface.h SDL_timer.h SDL_events.h SDL_name.h SDL_system.h SDL_touch.h SDL_filesystem.h SDL_opengles2.h SDL_syswm.h SDL_types.h SDL_gamecontroller.h SDL_opengles.h SDL_test_assert.h SDL_version.h SDL_gesture.h SDL_opengl.h SDL_test_common.h SDL_video.h
