drivers: wifi: Prevent CMake warnings for out-of-tree drivers
When Ethernet or Wi-Fi subsystems are enabled, but no driver source files are provided in the Zephyr source tree (which is the case for out-of-tree drivers), CMake throws warnings about empty libs, for example: No SOURCES given to Zephyr library: drivers__ethernet No SOURCES given to Zephyr library: drivers__wifi This commit sets ALLOW_EMPTY property for those libraries, to allow for seamless out-of-tree drivers integration. Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
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# SPDX-License-Identifier: Apache-2.0
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zephyr_library()
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zephyr_library_property(ALLOW_EMPTY TRUE)
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zephyr_library_sources_ifdef(CONFIG_ETH_GECKO
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eth_gecko.c
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# SPDX-License-Identifier: Apache-2.0
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zephyr_library()
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zephyr_library_property(ALLOW_EMPTY TRUE)
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add_subdirectory_ifdef(CONFIG_WIFI_ESP_AT esp_at)
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add_subdirectory_ifdef(CONFIG_WIFI_ESP32 esp32)
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add_subdirectory_ifdef(CONFIG_WIFI_ESWIFI eswifi)
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