ESP Bootloader Makefile

Originally posted this at esp8266.com, but the arduino forum seems more active, so I thought I'd try asking for help here as well.

I'm trying to modify the eboot.c file located in bootloaders/eboot/, but when I try to run the makefile I get this error below.

../../tools/esptool/esptool -vvv -eo eboot.elf -bo eboot.bin -bs .text -bs .data -bs .rodata -bc -ec || true
/bin/sh: 1: ../../tools/esptool/esptool: not found

I have the latest git version (2.6.0-dev), following the instructions outlined below.
GitHub - esp8266/Arduino: ESP8266 core for Arduino ... structions

When I go to the tools/esptool/ directory, there is "esptool.py", but nothing which is simply "esptool". If someone can point out what I might be missing, it would be appreciated. Attached the full output in case the the messages which come before are of any use.

output.txt (954 Bytes)

the git version has different location of tools then the board manager installation

Thank you. I was able to acquire the missing file from the board manager, then I had to modify the makefile path to esptool accordingly, and it appears to be working just fine now.