[linux-audio-user] PDP make install errors

hi list, i get the following error while trying to install PDP on a linux Fedora Core 2 box with a planetccrma kernel. anyone any ideas what this means? thanks, rob cc -DPD -O2 -funroll-loops -fomit-frame-pointer -ffast-math -Wall -W -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -DPDP_VERSION=\"0.12.2\" -g -Werror -I. -I/usr/X11R6/include -I../include -I../../include -o pdp.o -c pdp.c make[2]: Leaving directory `/home/robcanning/pure-data/externals/pdp/system/kernel' make -C image linux make[2]: Entering directory `/home/robcanning/pure-data/externals/pdp/system/image' cc -DPD -O2 -funroll-loops -fomit-frame-pointer -ffast-math -Wall -W -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -DPDP_VERSION=\"0.12.2\" -g -Werror -I. -I/usr/X11R6/include -I../include -I../../include -o pdp_imageproc_common.o -c pdp_imageproc_common.c pdp_imageproc_common.c: In function `_sign': pdp_imageproc_common.c:292: warning: use of cast expressions as lvalues is deprecated make[2]: *** [pdp_imageproc_common.o] Error 1 make[2]: Leaving directory `/home/robcanning/pure-data/externals/pdp/system/image' make[1]: *** [common] Error 2 make[1]: Leaving directory `/home/robcanning/pure-data/externals/pdp/system' make: *** [pdp_all] Error 2