Pkg-config doesn't find libmfx

Question

Hi,
I'm trying to build ffmpeg with h264_qsv (QuickSync) support. In order to do that, I need libmfx. But pkg-config doesn't find the libmfx files, although they are present:
PKG_CONFIG_PATH is filled with the correct path:
[root@nuc FFmpeg]# echo $PKG_CONFIG_PATH
/usr/lib/pkgconfig/
The libmfx files are there:
[root@nuc FFmpeg]# ls -l /usr/lib/pkgconfig/libmfx.*
-rw-r--r-- 1 root root 120284 Jun 20 19:25 /usr/lib/pkgconfig/libmfx.a
-rwxr-xr-x 1 root root 893 Jun 20 19:25 /usr/lib/pkgconfig/libmfx.la
-rw-r--r-- 1 root root 339 Jun 20 20:05 /usr/lib/pkgconfig/libmfx.pc
The libmfx.pc contents seems ok?
[root@nuc FFmpeg]# cat /usr/lib/pkgconfig/libmfx.pc
prefix=/usr/local
exec_prefix=${prefix}
libdir=${prefix}/lib
includedir=${prefix}/include
Name: libmfx
Description: Intel Media SDK Dispatched static library
Version: 2013
Requires:
Requires.private:
Conflicts:
Libs: -L${libdir} -lsupc++ ${libdir}/libmfx.a
Libs.private:
Cflags: -I${includedir} -I/media/downloads/opensource/SDK/include/
The header files are at the included in the SDK dir:
[root@nuc FFmpeg]# ls -l /media/downloads/opensource/SDK/include/
total 168
-rw-r--r-- 1 zao zao 4835 Jun 3 09:58 mfxastructures.h
-rw-r--r-- 1 zao zao 5479 Jun 3 09:58 mfxaudio++.h
-rw-r--r-- 1 zao zao 3493 Jun 3 10:02 mfxaudio.h
-rw-r--r-- 1 zao zao 4767 Jun 3 10:00 mfxcommon.h
-rw-r--r-- 1 zao zao 6306 Jun 3 09:58 mfxdefs.h
-rw-r--r-- 1 zao zao 2865 Jun 3 10:00 mfxenc.h
-rw-r--r-- 1 zao zao 2976 Jun 3 09:58 mfxjpeg.h
-rw-r--r-- 1 zao zao 2900 Jun 3 10:00 mfxla.h
-rw-r--r-- 1 zao zao 3048 Jun 3 09:58 mfxmvc.h
-rw-r--r-- 1 zao zao 2881 Jun 3 09:58 mfxpak.h
-rw-r--r-- 1 zao zao 28117 Jun 3 09:58 mfxplugin++.h
-rw-r--r-- 1 zao zao 11066 Jun 3 10:00 mfxplugin.h
-rw-r--r-- 1 zao zao 2647 Jun 3 09:58 mfxsession.h
-rw-r--r-- 1 zao zao 38541 Jun 3 10:00 mfxstructures.h
-rw-r--r-- 1 zao zao 10411 Jun 3 10:00 mfxvideo++.h
-rw-r--r-- 1 zao zao 6257 Jun 3 10:00 mfxvideo.h
-rw-r--r-- 1 zao zao 2690 Jun 3 09:58 mfxvp8.h
-rw-r--r-- 1 zao zao 1662 Jun 3 09:58 mfxvstructures.h
But configure cant't find the files:
[root@nuc FFmpeg]# git pull
Already up-to-date.
[root@nuc FFmpeg]# ./configure --enable-libmfx --enable-nonfree --enable-iconv --arch=x86 --disable-debug --disable-shared --disable-doc --disable-w32threads --enable-gpl --enable-version3 --enable-runtime-cpudetect --enable-avfilter --enable-bzlib --enable-zlib --enable-librtmp --enable-gnutls --enable-avisynth --enable-frei0r --enable-filter=frei0r --enable-libbluray --enable-libcaca --enable-libopenjpeg --enable-fontconfig --enable-libfreetype --enable-libass --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-libschroedinger --enable-libsoxr --enable-libtwolame --enable-libspeex --enable-libtheora --enable-libutvideo --enable-libvorbis --enable-libvo-aacenc --enable-libopus --enable-libvidstab --enable-libvpx --enable-libwavpack --enable-libxavs --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzvbi
ERROR: libmfx not found using pkg-config
If you think configure made a mistake, make sure you are using the latest
version from Git. If the latest version fails, report the problem to the
[email protected] mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solve the problem.
Sorry for being new at this, but I really want to learn
Thanks in advance, zAo

Answer 1

Did a restart from scratch: removed all *mfx* files from /usr/*, removed all build files and downloaded them again. Apart from make install, everything is run as my desktop user.
[zao@nuc mfx_dispatch]$ mkdir build && cd build
[zao@nuc build]$ cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local
-- The C compiler identification is GNU 5.1.0
-- The CXX compiler identification is GNU 5.1.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Intel Media SDK is here: /media/downloads/git/mfx_dispatch
-- Configuring done
-- Generating done
-- Build files have been written to: /media/downloads/git/mfx_dispatch/build
Start build
[zao@nuc build]$ make -j
Scanning dependencies of target mfx
[ 8%] [ 16%] [ 25%] [ 50%] [ 41%] [100%] [ 41%] [ 66%] [ 66%] [ 75%] [ 83%] [ 91%] Building CXX object CMakeFiles/mfx.dir/src/mfx_dxva2_device.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/main.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_library_iterator.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_library_iterator_linux.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_critical_section.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_load_dll.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_dispatcher_log.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_function_table.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_critical_section_linux.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_load_dll_linux.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_dispatcher.cpp.o
Building CXX object CMakeFiles/mfx.dir/src/mfx_win_reg_key.cpp.o
Linking CXX static library libmfx.a
[100%] Built target mfx
Install
[zao@nuc build]$ sudo make install
[100%] Built target mfx
Install the project...
-- Install configuration: ""
-- Installing: /usr/local/include/mfxjpeg.h
-- Installing: /usr/local/include/mfxplugin++.h
-- Installing: /usr/local/include/mfxastructures.h
-- Installing: /usr/local/include/mfxla.h
-- Installing: /usr/local/include/mfxenc.h
-- Installing: /usr/local/include/mfxcommon.h
-- Installing: /usr/local/include/mfxplugin.h
-- Installing: /usr/local/include/mfxvp8.h
-- Installing: /usr/local/include/mfxdefs.h
-- Installing: /usr/local/include/mfxmvc.h
-- Installing: /usr/local/include/mfxstructures.h
-- Installing: /usr/local/include/mfxvideo.h
-- Installing: /usr/local/include/mfxvstructures.h
-- Installing: /usr/local/include/mfxaudio++.h
-- Installing: /usr/local/include/mfxpak.h
-- Installing: /usr/local/include/mfxvideo++.h
-- Installing: /usr/local/include/mfxaudio.h
-- Installing: /usr/local/include/mfxsession.h
-- Installing: /usr/local/lib/pkgconfig/libmfx.pc
-- Installing: /usr/local/lib/libmfx.a
pkg-config doesn’t find the right files:
[zao@nuc build]$ pkg-config --list-all| grep mfx
[zao@nuc build]$ echo $?
1
I know that building via PKGBUILD is much cleaner, but -for me- it add additional levels of complexity.
Any tips or ideas? Thanks for your patience