#### Install optional packages:
```bash
sudo apt-get install \
- libcap-ng-dev libsystemd-dev libidn2-dev libprotobuf-c-dev protobuf-c-compiler libfstrm-dev libmaxminddb-dev libnghttp2-dev libbpf-dev libxdp-dev libmnl-dev python3-sphinx python3-sphinx-panels softhsm2
+ libcap-ng-dev libsystemd-dev libidn2-dev libprotobuf-c-dev protobuf-c-compiler protobuf-compiler libfstrm-dev libmaxminddb-dev libnghttp2-dev libbpf-dev libxdp-dev libmnl-dev python3-sphinx python3-sphinx-panels softhsm2
```
### Fedora like distributions
[], [enable_dnstap=no])
AS_IF([test "$enable_dnstap" != "no" -o "$STATIC_MODULE_dnstap" != "no" -o "$SHARED_MODULE_dnstap" != "no"],[
- AC_PATH_PROG([PROTOC_C], [protoc-c])
+ AC_PATH_PROG([PROTOC_C], [protoc])
AS_IF([test -z "$PROTOC_C"],[
- AC_MSG_ERROR([The protoc-c program was not found. Please install protobuf-c!])
+ AC_PATH_PROG([PROTOC_C], [protoc-c])
+ ])
+
+ AS_IF([test -z "$PROTOC_C"],[
+ AC_MSG_ERROR([Neither protoc nor protoc-c found. Install protobuf-compiler and protobuf-c-compiler])
])
PKG_CHECK_MODULES([libfstrm], [libfstrm])
PKG_CHECK_MODULES([libprotobuf_c], [libprotobuf-c >= 1.0.0])