We provide a hand-written version of the popular imspinner library. To compile it, add imspinner.h and its sub-headers (imspinner_text.h, imspinner_bars.h, imspinner_dots.h, imspinner_shapes.h, imspinner_compat.h) to your header include path.

The file contains all functions from the imspinner library with the following changes:

1. The ImSpinner namespace is added as the ImSpinner_ prefix to functions due to lack of namespace support in C
2. Default arguments are missing
3. Everything in the detail namespace is missing
4. Creating a spinner using ImSpinner::Config is not supported
5. The ImSpinner::demoSpinners function is not available due to unknown issues with compilation