dovecot -n
# 2.2.32 (dfbe293d4): /usr/local/etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.20 (7cd71ba)
# OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.10
/bin/bash ../../libtool --tag=CC --mode=link gcc -std=gnu99 -O3 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -I../.. -export-dynamic -o sievec sievec.o ../../src/lib-sieve/
libdovecot-sieve.la ../../src/lib-sieve-tool/
libsieve-tool.la -ldovecot-storage -ldovecot-lda -L/usr/local/lib/dovecot -ldovecot -lrt
libtool: link: gcc -std=gnu99 -O3 -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -I../.. -o .libs/sievec sievec.o -Wl,--export-dynamic ../../src/lib-sieve/.libs/libdovecot-sieve.so ../../src/lib-sieve-tool/.libs/libsieve-tool.a /usr/local/lib/dovecot/libdovecot-storage.so /usr/local/lib/dovecot/libdovecot-lda.so -L/usr/local/lib/dovecot /usr/local/lib/dovecot/libdovecot.so -lrt -Wl,-rpath -Wl,/usr/local/lib/dovecot
../../src/lib-sieve/.libs/libdovecot-sieve.so: undefined reference to `str_sanitize_utf8'
collect2: ld returned 1 exit status
make[3]: *** [sievec] Error 1
make[3]: Leaving directory `/download/dovecot-2.2-pigeonhole-0.4.24/src/sieve-tools'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/download/dovecot-2.2-pigeonhole-0.4.24/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/download/dovecot-2.2-pigeonhole-0.4.24'
make: *** [all] Error 2