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Hello,

> Source CVSed March 4. tried to build a release faild with:
> #   compile  GENERIC_SUN4U/machfb.o
> /usr/src/current/tooldir/bin/sparc--netbsdelf-gcc -mno-fpu -ffreestanding -O2 -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wno-sign-compare -fno-zero-initialized-in-bss -Dsparc64 -D__sparc64__ -m32 -Wa,-Av8plusa -mcpu=ultrasparc -I. -I/usr/src/current/src/sys/arch -I/usr/src/current/src/sys -nostdinc -DLKM -DMAXUSERS=64 -D_KERNEL -D_KERNEL_OPT -I/usr/src/current/src/sys/dist/ipf -c /usr/src/current/src/sys/dev/pci/machfb.c
> /usr/src/current/src/sys/dev/pci/machfb.c: In function `mach64_attach':
> /usr/src/current/src/sys/dev/pci/machfb.c:606: warning: cast to pointer from integer of different size
> 
> *** Failed target:  machfb.o
> 
> 
> I tried to compile a GENERIC32 kernel and got the same error. 
> I disabled machfb in the kernel config file and then I got:
Hmm, that's a cast from bus_addr_t to a pointer, sparc64 defines it as unit64_t. Casting it to an unsigned long first should solve it.
Looks like I overlooked this one because I never compiled a 32bit sun4u kernel - the same driver compiles fine in a pure 32bit environment like macppc.
machfb is useful if you have an Ultra 5 or 10 and use the onboard graphics chip.

have fun
Michael

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