Bug 922690

Summary:	dev-libs/libcec-6.0.2-r1[cubox]: fails check for TDA995x support silently and installs library with unresolved symbols
Product:	Gentoo Linux	Reporter:	Alfred Wingate <parona>
Component:	Current packages	Assignee:	No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it <maintainer-needed>
Status:	CONFIRMED ---
Severity:	normal	CC:	leonchik1976
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	818262, 824978

Description Alfred Wingate 2024-01-22 10:31:42 UTC

$ objdump -T --demangle /usr/lib64/libcec.so.6.0.2 | grep TDA995x
0000000000000000      D  *UND*  0000000000000000  Base        CEC::CTDA995xCECAdapterDetection::FindAdapter()
0000000000000000      D  *UND*  0000000000000000  Base        CEC::CTDA995xCECAdapterCommunication::CTDA995xCECAdapterCommunication(CEC::IAdapterCommunicationCallback*)

libcec adds the functions to the interface if HAVE_TDA995X_API is defined, but does a separate check for headers (which fails) for building the implemented functions.

https://github.com/Pulse-Eight/libcec/blob/master/src/libcec/adapter/TDA995x/TDA995xCECAdapterDetection.cpp#L37
https://github.com/Pulse-Eight/libcec/blob/master/src/libcec/cmake/CheckPlatformSupport.cmake#L137

This then leads to failed builds elsewhere such as with kodi.

I don't have a good idea where these headers are from. I'm only seeing that android's fork of the kernel had tda998x_ioctl.h at some point.

Comment 1 Sam James archtester

2024-01-22 10:36:09 UTC

My guess is linux-headers installed it once upon a time and it got dropped.