--- ./src/Makefile.in.orig	2019-03-04 17:19:43.022316000 +0200
+++ ./src/Makefile.in	2019-03-04 17:24:10.526725000 +0200
@@ -382,7 +382,7 @@
 	util.cxx \
 	version.cxx
 
-libpqxx_version = -release $(PQXX_ABI)
+libpqxx_version = -version-info 6:1:6
 libpqxx_la_LDFLAGS = $(libpqxx_version) \
 	-rpath $(libdir) \
 	${POSTGRES_LIB}