This might be a better style

regression_test/XML/XmlWorkflow/Makefile

@@ -38,7 +38,6 @@ all1: bin/Makefile
 	$(MAKE) -C bin all
 
 run1: bin/Makefile
-	export LD_LIBRARY_PATH=$$LD_LIBRARY_PATH_ORIG:$(ABS_SRC)/XmlWorkflow/bin/; \
 	$(MAKE) -C bin run
 
 clean1:
@@ -53,7 +52,6 @@ all2: bin2/Makefile
 	$(MAKE) -C bin2 all
 
 run2: bin2/Makefile
-	export LD_LIBRARY_PATH=$$LD_LIBRARY_PATH_ORIG:$(ABS_SRC)/XmlWorkflow/bin2/; \
 	$(MAKE) -C bin2 run
 
 clean2:

regression_test/XML/XmlWorkflow/bin/prj2mk.pl

@@ -134,6 +134,7 @@ while (<MAKEFILE_IN>) {
 TOPDIR := ../../..
 include   ../../../Makefile.regression
 export PATH:=\$(TTCN3_DIR)/bin:\$(PATH)
+export LD_LIBRARY_PATH:=\$(LD_LIBRARY_PATH):\$(ABS_SRC)/XmlWorkflow/bin:\$(TTCN3_DIR)/lib
 MKF
   }
 }

regression_test/XML/XmlWorkflow/bin2/prj2mk.pl

@@ -131,6 +131,7 @@ while (<MAKEFILE_IN>) {
 TOPDIR := ../../..
 include   ../../../Makefile.regression
 export PATH:=\$(TTCN3_DIR)/bin:\$(PATH)
+export LD_LIBRARY_PATH:=\$(LD_LIBRARY_PATH):\$(ABS_SRC)/XmlWorkflow/bin:\$(TTCN3_DIR)/lib
 MKF
   }
 }