opendoas @6.8.1: doesn't use the right compiler or flags

[ryandesign (Ryan Carsten Schmidt)]

See build log:

yacc  parse.y 
mv -f y.tab.c parse.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o parse.o parse.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o doas.o doas.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o env.o env.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o libopenbsd/explicit_bzero.o libopenbsd/explicit_bzero.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o libopenbsd/reallocarray.o libopenbsd/reallocarray.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o libopenbsd/execvpe.o libopenbsd/execvpe.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o libopenbsd/bsd-setres_id.o libopenbsd/bsd-setres_id.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o libopenbsd/closefrom.o libopenbsd/closefrom.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__    -c -o pam.o pam.c
cc -I. -Ilibopenbsd -O2 -Wall -Wextra -D__darwin__  parse.o doas.o env.o libopenbsd/explicit_bzero.o libopenbsd/reallocarray.o libopenbsd/execvpe.o libopenbsd/bsd-setres_id.o libopenbsd/closefrom.o pam.o -o doas  -lpam
rm parse.c

Note the use of cc instead of /usr/bin/clang (as set in the CC environment variable) and the lack of -arch flags (as set in the CFLAGS and LDFLAGS environment variables).