Bug building parted 1.6.12

[David Ronis]

I'm trying to upgrade parted to 1.6.12 (from 1.6.11).  The build dies in:

 /usr/bin/gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -O3 -march=i686 
-ffast-math -funroll-loops -fomit-frame-pointer -D_REENTRANT 
-D_FILE_OFFSET_BITS=64 -DLOCALEDIR=\"/usr/local/share/locale\" 
-DLOCALEDIR=\"/usr/local/share/locale\" -W -Wall -Wno-unused -Wno-switch 
-Wno-format -Werror -MT exception.lo -MD -MP -MF .deps/exception.Tpo -c 
exception.c  -fPIC -DPIC -o .libs/exception.o
exception.c:72: warning: conflicting types for built-in function 'log2'
make[3]: *** [exception.lo] Error 1
make[3]: Leaving directory `/home/ronis/parted-1.6.12/libparted'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/ronis/parted-1.6.12/libparted'
make[1]: *** [all-recursive] Error 1

I'm using gcc-3.4.1 on what is otherwise a slackware-10 box.

David