esp-idf/components/esp_netif_stack/README.md

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# ESP-NETIF stack component
This component is a direct dependency of ESP-NETIF and it defines a required dependency on lwIP.
## Purpose
Purpose of this component is to pull specific TCP/IP stack (lwIP) into the list of dependencies when using component ESP-NETIF.
By means of `esp_netif_stack` component, we can define these two
dependency scenarios:
1) Defines a required dependency on lwIP via this component (default)
2) In case a non-lwip build is required.
## Configure ESP-NETIF for building without lwIP
In order to use ESP-NETIF without lwIP (e.g. when using custom TCP/IP stack), follow these steps
* unselect `CONFIG_ESP_NETIF_TCPIP_LWIP` in `esp_netif` component configuration
* add a component `esp_netif_stack` to your private component paths
* register an empty component `idf_component_register()` in the component's CMakeLists.txt