Build error for port-sparc

[Paul Goyette <paul%whooppee.com@localhost>]

With sources updated on 2020-03-02 at 13:13:48 UTC I am getting the
following build error when doing a ``build.sh release''

#   compile  ramdisk/gethost.o
/build/netbsd-compat/tools/x86_64/sparc/bin/sparc--netbsdelf-gcc  -Os       -std=gnu99    -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-sign-compare  -Wsystem-headers   -Wno-traditional   -Wa,--fatal-warnings  -Werror     --sysroot=/build/netbsd-compat/dest/sparc -DSMALL -DLIBHACK -D_REENTRANT  -c   -I/build/netbsd-compat/src_ro/distrib/utils/libhack/../../../lib/libc/net /build/netbsd-compat/src_ro/distrib/utils/libhack/gethost.c
/build/netbsd-compat/src_ro/distrib/utils/libhack/gethost.c:76:1: error: function declaration isn't a prototype [-Werror=strict-prototypes]
 int h_errno;
 ^~~
cc1: all warnings being treated as errors


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