ben0x539 / overlay-thing

a minimal standalone mumble overlay display. C/linux/xcb, basically exploring C here

overlay thing for linux.

run mumble, run thing, enjoy

overlay-thing's Issues

make fails due to wrong order of linking flags

make fails with the following error:

$ make
cc  -c main.c
cc  -c mumble.c
cc  `pkg-config --cflags xcb xcb-shape` -c xcb.c
cc   `pkg-config --libs xcb xcb-shape` -lrt -o overlay-thing main.o mumble.o xcb.o
mumble.o: In function `open_mumble_shm':
mumble.c:(.text+0x8b2): undefined reference to `shm_open'
xcb.o: In function `setup_xcb':
xcb.c:(.text+0x56): undefined reference to `xcb_connect'
xcb.c:(.text+0xa3): undefined reference to `xcb_big_requests_enable'
xcb.c:(.text+0xaf): undefined reference to `xcb_shape_id'
xcb.c:(.text+0xb7): undefined reference to `xcb_get_extension_data'
xcb.c:(.text+0xfe): undefined reference to `xcb_get_setup'
xcb.c:(.text+0x106): undefined reference to `xcb_setup_roots_iterator'
xcb.c:(.text+0x152): undefined reference to `xcb_screen_next'
xcb.c:(.text+0x1ae): undefined reference to `xcb_generate_id'
xcb.c:(.text+0x1de): undefined reference to `xcb_create_colormap'
xcb.c:(.text+0x213): undefined reference to `xcb_generate_id'
xcb.c:(.text+0x286): undefined reference to `xcb_create_window'
xcb.c:(.text+0x299): undefined reference to `xcb_generate_id'
xcb.c:(.text+0x2ca): undefined reference to `xcb_create_gc'
xcb.c:(.text+0x302): undefined reference to `xcb_shape_rectangles'
xcb.c:(.text+0x315): undefined reference to `xcb_flush'
xcb.c:(.text+0x333): undefined reference to `xcb_get_file_descriptor'
xcb.o: In function `cleanup_xcb':
xcb.c:(.text+0x3c1): undefined reference to `xcb_destroy_window'
xcb.c:(.text+0x3e4): undefined reference to `xcb_free_gc'
xcb.c:(.text+0x407): undefined reference to `xcb_free_colormap'
xcb.c:(.text+0x416): undefined reference to `xcb_disconnect'
xcb.o: In function `move_resize':
xcb.c:(.text+0x474): undefined reference to `xcb_map_window'
xcb.c:(.text+0x4ce): undefined reference to `xcb_configure_window'
xcb.c:(.text+0x4e8): undefined reference to `xcb_unmap_window'
xcb.c:(.text+0x4f7): undefined reference to `xcb_flush'
xcb.o: In function `blit':
xcb.c:(.text+0x68f): undefined reference to `xcb_put_image'
xcb.c:(.text+0x6ae): undefined reference to `xcb_flush'
xcb.o: In function `get_rgba_visual':
xcb.c:(.text+0x6de): undefined reference to `xcb_screen_allowed_depths_iterator'
xcb.c:(.text+0x70a): undefined reference to `xcb_depth_visuals_iterator'
xcb.c:(.text+0x752): undefined reference to `xcb_visualtype_next'
xcb.c:(.text+0x772): undefined reference to `xcb_depth_next'
xcb.o: In function `on_xcb_read':
xcb.c:(.text+0x801): undefined reference to `xcb_poll_for_event'
xcb.c:(.text+0x81b): undefined reference to `xcb_connection_has_error'
collect2: error: ld returned 1 exit status
Makefile:6: recipe for target 'overlay-thing' failed
make: *** [overlay-thing] Error 1

Fixed by changing link flags to the end as below:

overlay-thing: main.o mumble.o xcb.o
        $(CC) $(CFLAGS) -o overlay-thing main.o mumble.o xcb.o $(LDFLAGS) -lrt `pkg-config --libs $(XCB_LIBS)`