libpcap: add support for dbus, libnl and rdma

[valgur]

Build log with all options enabled on Linux: https://gist.github.com/valgur/bb1ff3fd0ca5045a378ddd228c5588b3

[AbrilRBS]

Sorry that this took so long to get reviewed, looks good to me! :)

Thanks a lot for also including a full compilation log, truly appreciated!

[AbrilRBS]

@valgur there are some conflicts, please take a look so we can merge this!

[uilianries]

Blocking for further review. Thank you for your update! libpcap is a powerful library!

[uilianries]

@valgur I just tried to build locally, but using the official Docker image conanio/gcc11-ubuntu16.04:2.7.0 and it fails to build:

libpcap-1.10.4-linux-all-options.log

The error occurred because libpcap was not capable to find those dependencies via pkg-config. The PkgConfigDeps is missing in the recipe. Furthermore, there is a new bug in Conan client that does not allow us renaming the .pc for libnl::nl-genl component, so libpcap is not capable to find the expected pc file as well.

The commit 9271f24 fixes the situation by add PkgConfigDeps and renaming the generated .pc file, so we do not patch pcap directly (much cheaper).

libpcap-1.10.4-linux-pkgconfdeps.log

Please, consider using those docker images in the future, when providing the build lob. It did not fail for you, as you system is well configured, having all dependencies installed already.

[uilianries]

UPDATE: I just checked AUR and indeed the expected .pc file for nl-genl is libnl-genl-3.0.pc

https://archlinux.org/packages/core/x86_64/libnl/

I'll open a PR fixing it, so we do not need this current workaround by renaming the .pc file here.

[uilianries]

Depends on #25380 first.

It will fix the correct pkg-config missing for libnl when active with libpcap.

[uilianries]

The PR #25380 has been merged. I just rebased this PR.

[uilianries]

Need extra PR: #25386

[valgur]

LGTM. Thank you for the libnl fix, @uilianries!

[uilianries]

LGTM. Now libpcap is really consuming Conan dependencies for those new options:

lipcap-1.10.4-linux-shared.log
lipcap-1.10.4-linux-static.log

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 10 (fc9180f642c5108e06f99dc96d94a5d1aa76687c):

• libpcap/1.9.1:
  Built 16 packages out of 22 (All logs)

• libpcap/1.10.4:
  Built 20 packages out of 22 (All logs)

• libpcap/1.10.0:
  Built 18 packages out of 22 (All logs)

• libpcap/1.10.1:
  Built 20 packages out of 22 (All logs)