Vorbis не компилиться...

gmake[1]: Leaving directory `/home/vadim/build/root/libvorbis-1.0.1/doc'
Making all in examples
gmake[1]: Entering directory `/home/vadim/build/root/libvorbis-1.0.1/examples'
gcc -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"libvorbis\" -DVERSION=\"1.0.1\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1  -I. -I.  -I../include -I/usr/include    -O20 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char  -DUSE_MEMORY_H -c decoder_example.c
/bin/sh ../libtool --mode=link gcc  -O20 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char  -DUSE_MEMORY_H -all-static -o decoder_example  decoder_example.o ../lib/libvorbis.la -lm -L/usr/lib -logg
mkdir .libs
gcc -O20 -ffast-math -mno-ieee-fp -D_REENTRANT -fsigned-char -DUSE_MEMORY_H -static -o decoder_example decoder_example.o  ../lib/.libs/libvorbis.a -L/usr/lib -lm /usr/lib/libogg.a
/usr/bin/ld: cannot find -lm
collect2: ld returned 1 exit status
gmake[1]: *** [decoder_example] Error 1
gmake[1]: Leaving directory `/home/vadim/build/root/libvorbis-1.0.1/examples'
gmake: *** [all-recursive] Error 1
В чем может быть дело? libOGG установлен...(из исходников)