Interesting , can you post the first lines of the makefile?
Code:
SHELL := cmd.exe
export SHELL
TARGET_NAME := myProject
LIBS_SHARED_BASE := C:\Users\Walter\Documents\arduino-1.8.7\hardware\teensy\avr\libraries
LIBS_SHARED := Audio Wire SPI
LIBS_LOCAL_BASE := C:\Users\Walter\Documents\Arduino\libraries
LIBS_LOCAL :=
BOARD_ID := TEENSY36
CORE_BASE := C:\Users\Walter\Documents\arduino-1.8.7\hardware\teensy\avr\cores\teensy3
GCC_BASE := C:\Users\Walter\Documents\arduino-1.8.7\hardware\tools\arm
UPL_PJRC_B := C:\Users\Walter\Documents\arduino-1.8.7\hardware\tools
sketch same as in #42