I am having a similar error on SNV_99. I have gcc-dev installed and then did:
svn co http://svn9.cvsdude.com/kdesolaris/zyd/trunk zyd root at gUn:/export/home/pjharper/Downloads/zyd/src# ls ChangeLog zyd_funcs.h zyd.h zyd.o zyd_usb.h Makefile zyd_fw.c zyd_hw.c zyd_reg.h zyd_util.c zyd_al2230_rf.c zyd_fw.h zyd_hw.h zyd_rfmd_rf.c zyd_util.h zyd_al7230b_rf.c zyd_fw.o zyd_hw.o zyd_test.log zyd.c zyd_gct_rf.c zyd_impl.h zyd_usb.c root at gUn:/export/home/pjharper/Downloads/zyd/src# gmake all gcc -D_KERNEL -ffreestanding -fno-builtin -Wall -Werror -Wno-unknown-pragmas -m32 -I../onnv-gate/usr/src/uts/common -c zyd_usb.c zyd_usb.c: In function `zyd_usb_loadfirmware': zyd_usb.c:245: warning: unsigned int format, size_t arg (arg 4) gmake: *** [zyd_usb.o] Error 1 root at gUn:/export/home/pjharper/Downloads/zyd/src# -- This message posted from opensolaris.org