Description: makefiles do not allow setting of external flags
             so this must be done as patch
Index: cpdb-libs-1.2.0/lib/Makefile.am
===================================================================
--- cpdb-libs-1.2.0.orig/lib/Makefile.am	2018-08-19 12:32:05.000000000 +0200
+++ cpdb-libs-1.2.0/lib/Makefile.am	2023-01-09 13:38:27.183022944 +0100
@@ -13,7 +13,7 @@
 libcpdb_libs_common_la_LIBADD += $(GIO_LIBS)
 libcpdb_libs_common_la_LIBADD += $(GIOUNIX_LIBS)
 
-libcpdb_libs_common_la_LDFLAGS = -no-undefined -version-info 1
+libcpdb_libs_common_la_LDFLAGS = -no-undefined -version-info 1 -Wl,-z,now -Wl,-z,relro
 
 libcpdb_libs_frontend_la_SOURCES = frontend_helper.c
 libcpdb_libs_frontend_la_CPPFLAGS  = $(GLIB_CFLAGS)
@@ -25,7 +25,7 @@
 libcpdb_libs_frontend_la_LIBADD += $(GIO_LIBS)
 libcpdb_libs_frontend_la_LIBADD += $(GIOUNIX_LIBS)
 
-libcpdb_libs_frontend_la_LDFLAGS = -no-undefined -version-info 1
+libcpdb_libs_frontend_la_LDFLAGS = -no-undefined -version-info 1 -Wl,-z,now -Wl,-z,relro
 
 ##INSTALL HEADERS
 cpd_interface_headersdir = $(includedir)/cpd-interface-headers