enum __attribute__((packed)) causes assert failure

[denizzzka]

C header:

enum esp_chip_id_t {
    ESP_CHIP_ID_ESP32 = 0x0000,
    ESP_CHIP_ID_INVALID = 0xFFFF
} __attribute__((packed));

Causes

Fatal error: core.exception.AssertError@../../.dub/packages/libclang/0.3.3/libclang/source/clang/package.d(290): Assertion failure
----------------
??:? [0x55fab4d53e6e]
??:? [0x55fab4d53ad2]
??:? [0x55fab4d7b25e]
??:? [0x55fab4d5be6f]
??:? [0x55fab4d52ba2]
../../.dub/packages/libclang/0.3.3/libclang/source/clang/package.d:290 [0x55fab4d1b198]
source/dpp/translation/aggregate.d:742 [0x55fab4c8c2dc]
/home/denizzz/ldc2_standalone/bin/../import/std/algorithm/iteration.d:582 [0x55fab4c8c36c]
/home/denizzz/ldc2_standalone/bin/../import/std/algorithm/searching.d:1321 [0x55fab4d0968f]
/home/denizzz/ldc2_standalone/bin/../import/std/algorithm/searching.d:3744 [0x55fab4c59907]
source/dpp/translation/aggregate.d:744 [0x55fab4c5688c]
source/dpp/translation/aggregate.d:190 [0x55fab4c55522]
source/dpp/translation/aggregate.d:159 [0x55fab4c560ef]
source/dpp/translation/aggregate.d:145 [0x55fab4c3f03f]
source/dpp/translation/translation.d:101 [0x55fab4c336d0]
source/dpp/translation/translation.d:23 [0x55fab4c3d9e4]
source/dpp/expansion/package.d:48 [0x55fab4cd4d28]
source/dpp/runtime/app.d:205 [0x55fab4c72ed3]
source/dpp/runtime/app.d:127 [0x55fab4cd2e38]
source/dpp/runtime/app.d:19 [0x55fab4c3282f]
source/main.d:9 [0x55fab4c320c2]
??:? [0x55fab4d5bb4c]
??:? [0x55fab4d5ba46]
??:? [0x55fab4d5b89c]
/home/denizzz/ldc2_standalone/bin/../import/core/internal/entrypoint.d:42 [0x55fab4c32b31]
??:? [0x7fde58918c89]
??:? __libc_start_main [0x7fde58918d44]
??:? [0x55fab4c31f80]

[denizzzka]

(Yes, this is not from C standart, but widely used)