Azq2:

This define: https://lxr.openwrt.org/source/libubox/utils.h#L236
Conflicts with package "nlohmannjson"

Example:
In file included from Json.h:2,
from Ubus.h:11,
from ModemService.h:6,
from ModemService.cpp:1:
/openwrt/staging_dir/target-mipsel_24kc_musl/usr/include/nlohmann/json.hpp:1689:42: error: missing ')' after "__has_attribute"
JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) ||
^
/openwrt/staging_dir/target-mipsel_24kc_musl/usr/include/nlohmann/json.hpp:1689:31: error: missing binary operator before token "("
JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) ||
^~~~~~~~~~~
/openwrt/staging_dir/target-mipsel_24kc_musl/usr/include/nlohmann/json.hpp:1692:57: error: missing ')' after "__has_attribute"
#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang,fallthrough)
^
/openwrt/staging_dir/target-mipsel_24kc_musl/usr/include/nlohmann/json.hpp:1692:46: error: missing binary operator before token "("
#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang,fallthrough)
^~~~~~~~~~~
/openwrt/staging_dir/target-mipsel_24kc_musl/usr/include/nlohmann/json.hpp:1694:48: error: missing ')' after "__has_attribute"
#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough)
^
/openwrt/staging_dir/target-mipsel_24kc_musl/usr/include/nlohmann/json.hpp:1694:37: error: missing binary operator before token "("
#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough)