checking for sam_open in -lbam... no

[fire-activate]

I configure by this code
./configure --with-samtools=/psd/biosoft/samtools_suit/samtools-0.1.19/ --with-boost=/psd/biosoft/boost_1_60_0_b1/
but I get the error messages ：

......................
checking if samtools is wanted... yes
checking sam.h usability... yes
checking sam.h presence... yes
checking for sam.h... yes
checking for sam_open in -lbam... no
checking samtools... failed
configure: error: either specify a valid samtools installation with --with-samtools=DIR or disable samtools usage with --without-samtools

also, I have tested other way and configure:
export LACHESIS_BOOST_DIR="/psd/biosoft/boost_1_60_0_b1/:$LACHESIS_BOOST_DIR"
export LACHESIS_SAMTOOLS_DIR="/psd/biosoft/samtools_suit/samtools-0.1.19/:$LACHESIS_SAMTOOLS_DIR"