remove ckdb bzip2 build requirement

configure.ac

@@ -38,7 +38,6 @@ AC_CHECK_HEADERS(alloca.h pthread.h stdio.h math.h signal.h sys/prctl.h)
 AC_CHECK_HEADERS(sys/types.h sys/socket.h sys/stat.h linux/un.h netdb.h)
 AC_CHECK_HEADERS(stdint.h netinet/in.h netinet/tcp.h sys/ioctl.h getopt.h)
 AC_CHECK_HEADERS(sys/epoll.h libpq-fe.h postgresql/libpq-fe.h grp.h)
-AC_CHECK_HEADERS(bzlib.h)
 
 PTHREAD_LIBS="-lpthread"
 MATH_LIBS="-lm"
@@ -60,18 +59,13 @@ AC_ARG_WITH([ckdb],
 if test "x$ckdb" != "xno"; then
 	AC_CHECK_LIB([pq], [main],[PQ=-lpq],echo "Error: Required library libpq-dev
 		not found. Install it or disable postgresql support with --without-ckdb" && exit 1)
-	AC_CHECK_LIB([bz2], [main],[BZ2=-lbz],echo "Error: Required library libbz
-		not found. Install it or disable libbz2 support with --without-ckdb" && exit 1)
 	AC_DEFINE([USE_CKDB], [1], [Defined to 1 if ckdb support required])
 	PQ_LIBS="-lpq"
-	BZ2_LIBS="-lbz2"
 else
 	PQ_LIBS=""
-	BZ2_LIBS=""
 fi
 AM_CONDITIONAL([WANT_CKDB], [test "x$ckdb" != "xno"])
 AC_SUBST(PQ_LIBS)
-AC_SUBST(BZ2_LIBS)
 
 AC_OUTPUT([Makefile] [src/Makefile])
 
@@ -81,7 +75,7 @@ echo "  CPPFLAGS.............: $CPPFLAGS"
 echo "  CFLAGS...............: $CFLAGS"
 echo "  LDFLAGS..............: $LDFLAGS"
 echo "  LDADD................: $PTHREAD_LIBS $MATH_LIBS $RT_LIBS $JANSSON_LIBS"
-echo "  db LDADD.............: $PQ_LIBS $BZ2_LIBS"
+echo "  db LDADD.............: $PQ_LIBS"
 echo
 echo "Installation...........: make install (as root if needed, with 'su' or 'sudo')"
 echo "  prefix...............: $prefix"

src/Makefile.am

@@ -23,5 +23,5 @@ if WANT_CKDB
 bin_PROGRAMS += ckdb
 ckdb_SOURCES = ckdb.c ckdb_cmd.c ckdb_data.c ckdb_dbio.c ckdb_btc.c \
 		ckdb.h klist.c ktree.c klist.h ktree.h
-ckdb_LDADD = libckpool.la @JANSSON_LIBS@ @PQ_LIBS@ @BZ2_LIBS@
+ckdb_LDADD = libckpool.la @JANSSON_LIBS@ @PQ_LIBS@
 endif