libpgcommon library, link it here
--- /dev/null
+libpcp requires symbols which are currently available in static
+libpgcommon library, link it here
+
+--- pgpool-II-3.4.2/src/libs/pcp/Makefile.am~ 2015-04-08 09:58:44.000000000 +0200
++++ pgpool-II-3.4.2/src/libs/pcp/Makefile.am 2015-06-18 14:08:24.100554508 +0200
+@@ -1,6 +1,7 @@
+ AM_CPPFLAGS = -D_GNU_SOURCE -DPOOL_PRIVATE -I @PGSQL_INCLUDE_DIR@
+
+ lib_LTLIBRARIES = libpcp.la
++libpcp_la_LIBADD = $(PGSQL_LIB_DIR)/libpgcommon.a
+ libpcp_la_SOURCES = pcp.c \
+ pcp_stream.c \
+ pcp_error.c \