New version ESPhome on HomeAssistant fails build

[benjammin2068]

Version

2025.12.7

What type of installation are you using?

Home Assistant Add-on

Browser

Firefox

What happened?

Compilation/Install fails.

How to reproduce

Entire config:

esphome:
name: "litebrite-classic"
friendly_name: litebrite-classic

esp8266:
board: esp_wroom_02

Enable logging

#logger:

Enable Home Assistant API

api:
encryption:
key:

ota:

• platform: esphome
  password:

wifi:
ssid:
password:
domain:
min_auth_mode: WPA2

logger:

external_components:

• source: github://oxan/esphome-stream-server

stream_server:
uart_id: myuart
port: 9100

binary_sensor:

• platform: stream_server
  connected:
  name: Client-Connection

uart:
id: myuart
tx_pin: GPIO14
rx_pin: GPIO12
baud_rate: 9600
data_bits: 7
parity: EVEN
stop_bits: 2

Expected behavior

Compile should succeed.

Relevant log output

Compiling .pioenvs/litebrite-classic/src/esphome/core/entity_base.cpp.o
src/esphome/core/component_iterator.cpp:197:1: internal compiler error: in expand_all_functions, at cgraphunit.c:2428
  197 | }  // namespace esphome
      | ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
*** [.pioenvs/litebrite-classic/src/esphome/core/component_iterator.cpp.o] Error 1

Screenshots

No response

[benjammin2068]

rolling back to 2025.12.6 removes compilation issue -- and compiles succeed. (with no changes to device configuration)