Commit c258d21 breaks build on linux as bool not a C type and stdbool is required

[Former user]

Removing stdbool.h breaks compiling with C on linux (at least). This breaks building ffmpeg etc.

/usr/include/x265.h:172:5: error: unknown type name 'bool'

bool is not a fundamental type in plain C and requires #include <stdbool.h>.

[Justin Hao]

Also had this issue, thanks!

[Helmut K. C. Tessarek]

Same problem on macOS. I can't build ffmpeg anymore.

[Ashok Kumar Mishra]

This issue has been fixed.