Failed to compile openocd due to missing void parameter in prototypes

[bdmihai]

Hello,

Compiling openocd (latest version from git) fails with the following error message:

/usr/include/hidapi/hidapi.h:481:32: error: function declaration isn’t a prototype [-Werror=strict-prototypes]
481 | HID_API_EXPORT const struct hid_api_version* HID_API_CALL hid_version();
| ^~~~~~~~~~~~~~~
/usr/include/hidapi/hidapi.h:491:3: error: function declaration isn’t a prototype [-Werror=strict-prototypes]
491 | HID_API_EXPORT const char* HID_API_CALL hid_version_str();
| ^~~~~~~~~~~~~~

Adding void as parameter for the two functions will fix the issue.
HID_API_EXPORT const struct hid_api_version* HID_API_CALL hid_version(void);
HID_API_EXPORT const char* HID_API_CALL hid_version_str(void);

Would be possible to fix this in order to avoid this problem?

BR,
Mihai

[Youw]

Please see #373
And libusb/hidapi#207