make error

[avcatshy]

z@ubuntu:~/esp/ble_ctf$ make 
Toolchain path: /home/z/esp/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc
Toolchain version: esp32-2019r1
Compiler version: 8.2.0
Python requirements from /home/z/esp/esp-idf/requirements.txt are satisfied.

App "gatt_server_service_table_demo" version: 1.0-3-g1e85408
CC build/main/gatts_table_creat_demo.o
/home/z/esp/ble_ctf/main/gatts_table_creat_demo.c:193:22: error: 'char_value' defined but not used [-Werror=unused-const-variable=]
 static const uint8_t char_value[4]                 = {0x11, 0x22, 0x33, 0x44};
                      ^~~~~~~~~~
/home/z/esp/ble_ctf/main/gatts_table_creat_demo.c:192:22: error: 'heart_measurement_ccc' defined but not used [-Werror=unused-const-variable=]
 static const uint8_t heart_measurement_ccc[2]      = {0x00, 0x00};
                      ^~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
/home/z/esp/esp-idf/make/component_wrapper.mk:289: recipe for target 'gatts_table_creat_demo.o' failed
make[1]: *** [gatts_table_creat_demo.o] Error 1
/home/z/esp/esp-idf/make/project.mk:582: recipe for target 'component-main-build' failed
make: *** [component-main-build] Error 2
z@ubuntu:~/esp/ble_ctf$ grep -nr char_value
main/gatts_table_creat_demo.c:193:static const uint8_t char_value[4]                 = {0x11, 0x22, 0x33, 0x44};
z@ubuntu:~/esp/ble_ctf$ grep -nr heart_measurement_ccc
main/gatts_table_creat_demo.c:192:static const uint8_t heart_measurement_ccc[2]      = {0x00, 0x00};
z@ubuntu:~/esp/ble_ctf$ xtensa-esp32-elf-gcc --version
xtensa-esp32-elf-gcc (crosstool-NG esp32-2019r1) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

we may nop this two unused-const-variable.

[ad0nis]

I ran into this error as well. I was able to get past it by re-running make menuconfig and then going to "Compiler Options" and then enabling the "Disable new warnings introduced in GCC 6 - 8" option. Running make after that allowed me to create a clean build. Good luck!

[JustRedbeard]

Same issue, and Ad0nis's comment above of toggling the disable GCC 6-8 warnings in menuconfig worked for me.

[avcatshy]

It seems like a better way.Thanks!