PKG_CONFIG_PATH=/opt/intel/mediasdk/lib64/pkgconfig ./configure --enable-libmfx --enable-memalign-hack --extra-libs="-lsupc++ -lstdc++"



ls /opt/intel/mediasdk/lib64/pkgconfig/
libmfx.pc



tail config.log
BEGIN /tmp/ffconf.RriS9Ieq.c
    1   #include <mfx/mfxvideo.h>
    2   long check_MFXInit(void) { return (long) MFXInit; }
    3   int main(void) { return 0; }
END /tmp/ffconf.RriS9Ieq.c
gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -std=c99 -fomit-frame-pointer -pthread -I/opt/intel/mediasdk/include -L/opt/intel/mediasdk/lib64 -c -o /tmp/ffconf.Z7PULHRI.o /tmp/ffconf.RriS9Ieq.c
gcc -Wl,--as-needed -Wl,-z,noexecstack -I/opt/intel/mediasdk/include -L/opt/intel/mediasdk/lib64 -o /tmp/ffconf.nhh8K2m9 /tmp/ffconf.Z7PULHRI.o -lmfxhw64 -lm -lz -pthread -lsupc++ -lstdc++
/usr/bin/ld: cannot find -lmfxhw64
collect2: error: ld returned 1 exit status
ERROR: libmfx not found using pkg-config