:~/archives/mythtv/mythtv-0.18.1> make
cd libs && qmake libs.pro -o Makefile
cd libs && make -f Makefile
make[1]: Entering directory `/home/me/archives/mythtv/mythtv-0.18.1/libs'
cd libavcodec && qmake libavcodec.pro -o Makefile
cd libavcodec && make -f Makefile
make[2]: Entering directory `/home/me/archives/mythtv/mythtv-0.18.1/libs/libavcodec'
gcc -c -pipe -O2 -march=i586 -mtune=i686 -fmessage-length=0 -Wall -D_FORTIFY_SOURCE=2 -g -march=pentium4 -w -O3 -Wall -Wno-switch -fomit-frame-pointer -D_REENTRANT -DPIC -fPIC  -DMMX -Di386 -DUSING_IVTV -DUSING_XRANDR -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DPREFIX=\"/usr/local\" -DHAVE_AV_CONFIG_H -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I.. -I../.. -I/usr/include -I/usr/lib/qt3/include -o utils.o utils.c
In file included from avcodec.h:14,
                 from utils.c:27:
common.h:61: error: array type has incomplete element type
common.h:65: error: array type has incomplete element type
make[2]: *** [utils.o] Error 1
make[2]: Leaving directory `/home/me/archives/mythtv/mythtv-0.18.1/libs/libavcodec'
make[1]: *** [sub-libavcodec] Error 2
make[1]: Leaving directory `/home/me/archives/mythtv/mythtv-0.18.1/libs'
make: *** [sub-libs] Error 2