Comment 41 for bug 383240

gcc -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I. -I"/build/buildd/ffmpeg-0.5+svn20090706" -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -I/build/buildd/ffmpeg-0.5+svn20090706/debian/include -mfpu=neon -mfloat-abi=softfp -std=c99 -fomit-frame-pointer -march=armv7-a -pthread -I/usr/include/schroedinger-1.0 -I/usr/include/liboil-0.3 -g -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wtype-limits -Wundef -O3 -fno-math-errno -fno-signed-zeros -c -o libavutil/utils.o /build/buildd/ffmpeg-0.5+svn20090706/libavutil/utils.c
gcc -shared -Wl,-soname,libavutil.so.49 -Wl,-Bsymbolic-functions -Wl,--warn-common -Wl,--as-needed -Wl,-rpath-link,"/build/buildd/ffmpeg-0.5+svn20090706/debian-neon"/libpostproc -Wl,-rpath-link,"/build/buildd/ffmpeg-0.5+svn20090706/debian-neon"/libswscale -Wl,-rpath-link,"/build/buildd/ffmpeg-0.5+svn20090706/debian-neon"/libavfilter -Wl,-rpath-link,"/build/buildd/ffmpeg-0.5+svn20090706/debian-neon"/libavdevice -Wl,-rpath-link,"/build/buildd/ffmpeg-0.5+svn20090706/debian-neon"/libavformat -Wl,-rpath-link,"/build/buildd/ffmpeg-0.5+svn20090706/debian-neon"/libavcodec -Wl,-rpath-link,"/build/buildd/ffmpeg-0.5+svn20090706/debian-neon"/libavutil -Wl,-Bsymbolic -o libavutil/libavutil.so.49 libavutil/adler32.o libavutil/aes.o libavutil/avstring.o libavutil/base64.o libavutil/crc.o libavutil/des.o libavutil/fifo.o libavutil/intfloat_readwrite.o libavutil/lfg.o libavutil/lls.o libavutil/log.o libavutil/lzo.o libavutil/mathematics.o libavutil/md5.o libavutil/mem.o libavutil/random.o libavutil/rational.o libavutil/rc4.o libavutil/sha1.o libavutil/tree.o libavutil/utils.o -lz -lbz2 -pthread -lm -lgsm -lschroedinger-1.0 -lpthread -loil-0.3 -lm -lrt -lspeex -ltheora -logg -lvorbisenc -lvorbis -logg -ldc1394 -lraw1394 -lasound -ldl -lasound -lX11 -lXext -lasound
/usr/bin/ld: libavutil/aes.o: relocation R_ARM_MOVW_ABS_NC against `__stack_chk_guard' can not be used when making a shared object; recompile with -fPIC
libavutil/aes.o: could not read symbols: Bad value

It looks like aes.o is misbuilt, or can't build with the -fPIE stuff we're using by default; but I don't understand why that's NEON specific.