--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -84,7 +84,7 @@
 
 # link shared or static lib to executables
 ifeq "@use_sharedlib@" "true"
-  LIB_SERDISP=-L$(LIB_DIR) -l$(LIB_NAME)
+  LIB_SERDISP=-L$(LIB_DIR) -l$(LIB_NAME) $(LDFLAGS)
 else
   LIB_SERDISP=$(LIB_DIR)/$(LIB_STATIC)
   # static execs also need to link to libraries in LDFLAGS
--- a/tools/Makefile.in
+++ b/tools/Makefile.in
@@ -58,7 +58,7 @@
 
 # link shared or static lib to executables
 ifeq "@use_sharedlib@" "true"
-  LIB_SERDISP=-L$(LIB_DIR) -l$(LIB_NAME)
+  LIB_SERDISP=-L$(LIB_DIR) -l$(LIB_NAME) $(LDFLAGS)
 else
   LIB_SERDISP=$(LIB_DIR)/$(LIB_STATIC)
   # static execs also need to link to libraries in LDFLAGS