So, I built KOReader toolchain, remake makefile, but I have the same error.
Code:
/home/dmitry/x-tools/arm-kindlepw2-linux-gnueabi/arm-kindlepw2-linux-gnueabi/include/c++/7.4.1/arm-kindlepw2-linux-gnueabi/bits/os_defines.h:39:10: fatal error: features.h: No such file or directory
#include <features.h>
https://github.com/Roker2/blocks/blo...8/Makefile#L15