Fix compilation errors

[facchinm]

[github-actions[bot]]

Memory usage change @ ebd7672dc854afed2efefe352a506d047b097d49

Board	flash	%	RAM for global variables	%
arduino:avr:leonardo	:small_red_triangle: +10 - +198	+0.03 - +0.69	0 - 0	0.0 - 0.0
arduino:avr:mega	:small_red_triangle: +10 - +194	0.0 - +0.08	0 - 0	0.0 - 0.0
arduino:avr:uno	:small_red_triangle: +10 - +198	+0.03 - +0.61	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/Accelerometer flash	%	examples/Accelerometer RAM for global variables	%	examples/BareMinimum flash	%	examples/BareMinimum RAM for global variables	%	examples/Euler flash	%	examples/Euler RAM for global variables	%	examples/Motion flash	%	examples/Motion RAM for global variables	%
arduino:avr:leonardo	198	0.69	0	0.0	10	0.03	0	0.0	76	0.27	0	0.0	10	0.03	0	0.0
arduino:avr:mega	194	0.08	0	0.0	10	0.0	0	0.0	76	0.03	0	0.0	10	0.0	0	0.0
arduino:avr:uno	198	0.61	0	0.0	10	0.03	0	0.0	76	0.24	0	0.0	10	0.03	0	0.0

Click for full report CSV

Board,examples/Accelerometer<br>flash,%,examples/Accelerometer<br>RAM for global variables,%,examples/BareMinimum<br>flash,%,examples/BareMinimum<br>RAM for global variables,%,examples/Euler<br>flash,%,examples/Euler<br>RAM for global variables,%,examples/Motion<br>flash,%,examples/Motion<br>RAM for global variables,%
arduino:avr:leonardo,198,0.69,0,0.0,10,0.03,0,0.0,76,0.27,0,0.0,10,0.03,0,0.0
arduino:avr:mega,194,0.08,0,0.0,10,0.0,0,0.0,76,0.03,0,0.0,10,0.0,0,0.0
arduino:avr:uno,198,0.61,0,0.0,10,0.03,0,0.0,76,0.24,0,0.0,10,0.03,0,0.0