AC_DEFUN([DOVECOT_WANT_BZLIB], [

if test "$want_bzlib" != "no"; then

AC_CHECK_HEADER(bzlib.h, [

AC_CHECK_LIB(bz2, BZ2_bzdopen, [

have_bzlib=yes

have_compress_lib=yes

AC_DEFINE(HAVE_BZLIB,, [Define if you have bzlib library])

COMPRESS_LIBS="$COMPRESS_LIBS -lbz2"

], [

if test "$want_bzlib" = "yes"; then

AC_ERROR([Can't build with bzlib support: libbz2 not found])

fi

])

], [

if test "$want_bzlib" = "yes"; then

AC_ERROR([Can't build with bzlib support: bzlib.h not found])

fi

])

fi

])