Fix building of rp-pppoe plugin

The test for the if_pppox.h header file needs to also include linux/in6.h
(ipv6 support).

Fixes openwrt ticket #13321

Signed-off-by: Nils Rennebarth <nils.rennebarth@teldat.com>


git-svn-id: svn://svn.openwrt.org/openwrt/packages@39516 3c298f89-4303-0410-b956-a3cf2f4a3e73
rp-pppoe: Fix linkage

Do not link against libevent if present on your target. That lib is
completely different from the libevent in rp-pppoe. The lib is part
of the dependencies, so no -L and -l are necessary anyway.

Signed-off-by: Nils Rennebarth <nils.rennebarth@teldat.com>


git-svn-id: svn://svn.openwrt.org/openwrt/packages@39517 3c298f89-4303-0410-b956-a3cf2f4a3e73
libftdi : fix build error

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- using cmake to find libusb
- fix header location

fixes #13258

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>


git-svn-id: svn://svn.openwrt.org/openwrt/packages@39519 3c298f89-4303-0410-b956-a3cf2f4a3e73
libftdi: fix pkgconfig support by installing .pc into staging dir

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>


git-svn-id: svn://svn.openwrt.org/openwrt/packages@39520 3c298f89-4303-0410-b956-a3cf2f4a3e73