CVSUP configuration file:
*default host=cvsup4.FreeBSD.org
*default base=/var/db
*default prefix=/usr
*default release=cvs tag=RELENG_9
*default delete use-rel-suffix
*default compress
src-all


....
===> lib (install)
===> lib/csu/i386-elf (install)
cc -O2 -pipe  -I/usr/src/lib/csu/i386-elf/../common  -I/usr/src/lib/csu/i386-elf/../../libc/include -std=gnu99  -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wold-style-definition -Wno-pointer-sign  -c crti.S
cc -O2 -pipe  -I/usr/src/lib/csu/i386-elf/../common  -I/usr/src/lib/csu/i386-elf/../../libc/include -std=gnu99  -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wold-style-definition -Wno-pointer-sign  -c crtn.S
cc -O2 -pipe  -I/usr/src/lib/csu/i386-elf/../common  -I/usr/src/lib/csu/i386-elf/../../libc/include -std=gnu99  -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wold-style-definition -Wno-pointer-sign -DGCRT -S -o gcrt1_c.s /usr/src/lib/csu/i386-elf/crt1_c.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' gcrt1_c.s
cc  -c -o gcrt1_c.o gcrt1_c.s
cc -O2 -pipe  -I/usr/src/lib/csu/i386-elf/../common  -I/usr/src/lib/csu/i386-elf/../../libc/include -std=gnu99  -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wold-style-definition -Wno-pointer-sign  -c crt1_s.S
ld  -o gcrt1.o -r crt1_s.o gcrt1_c.o
cc -O2 -pipe  -I/usr/src/lib/csu/i386-elf/../common  -I/usr/src/lib/csu/i386-elf/../../libc/include -std=gnu99  -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wold-style-definition -Wno-pointer-sign -S -o crt1_c.s /usr/src/lib/csu/i386-elf/crt1_c.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' crt1_c.s
cc  -c -o crt1_c.o crt1_c.s
ld  -o crt1.o -r crt1_s.o crt1_c.o
objcopy --localize-symbol _start1 crt1.o
cc -O2 -pipe  -I/usr/src/lib/csu/i386-elf/../common  -I/usr/src/lib/csu/i386-elf/../../libc/include -std=gnu99  -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls -Wold-style-definition -Wno-pointer-sign -fPIC -DPIC -S -o Scrt1_c.s /usr/src/lib/csu/i386-elf/crt1_c.c
sed -i "" -e '/\.note\.ABI-tag/s/progbits/note/' Scrt1_c.s
cc  -c -o Scrt1_c.o Scrt1_c.s
ld  -o Scrt1.o -r crt1_s.o Scrt1_c.o
objcopy --localize-symbol _start1 Scrt1.o
install -o root -g wheel  -m 444 crti.o crtn.o gcrt1.o crt1.o Scrt1.o /usr/lib
===> lib/libc (install)
install -C -o root -g wheel -m 444   libc.a /usr/lib
install: libc.a: No such file or directory
*** Error code 71

Stop in /usr/src/lib/libc.
*** Error code 1

Stop in /usr/src/lib.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.