Mine

dbconverter-2.c:366: warning: unused parameter 'plugin_name'
/bin/sh ../libtool --tag=CC --mode=link i686-pc-linux-gnu-gcc  -Wall -W -O2 -march=i686 -pipe   -o dbconverter-2  dbconverter-2.o ../sasldb/libsasldb.la ../lib/libsasl2.la -lgdbm -lresolv  -lresolv
mkdir .libs
i686-pc-linux-gnu-gcc -Wall -W -O2 -march=i686 -pipe -o .libs/dbconverter-2 dbconverter-2.o  ../sasldb/.libs/libsasldb.a ../lib/.libs/libsasl2.so -ldl /usr/lib/libgdbm.so -lresolv
../lib/.libs/libsasl2.so: undefined reference to `crypt'
collect2: ld returned 1 exit status
make[2]: *** [dbconverter-2] Error 1
make[2]: Leaving directory `/var/tmp/portage/cyrus-sasl-2.1.22/work/cyrus-sasl-2.1.22/utils'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/cyrus-sasl-2.1.22/work/cyrus-sasl-2.1.22'
make: *** [all] Error 2

!!! ERROR: dev-libs/cyrus-sasl-2.1.22 failed.
Call stack:
  ebuild.sh, line 1546:   Called dyn_compile
  ebuild.sh, line 937:   Called src_compile
  cyrus-sasl-2.1.22.ebuild, line 166:   Called die

!!! compile problem
!!! If you need support, post the topmost build error, and the call stack if relevant.