Firmware build for ESPRUINOWIFI fails make: *** [libs/graphics/lcd_arraybuffer.o] Error 1 'for' loop only allowed in C99 or C11 mode

Sun 2021.10.24 11:58am CST

S.W.A.G. here, could this be related to the layout issue here as the errors occur similarly to LCD Graphics array buffer output as described at:

Layout Library Not Working

or is this just a stange co-inky-dink?