Index: trunk/psLib/test/sys/Makefile.am
===================================================================
--- trunk/psLib/test/sys/Makefile.am	(revision 8810)
+++ trunk/psLib/test/sys/Makefile.am	(revision 8841)
@@ -10,7 +10,13 @@
 	$(PSLIB_LIBS)
 
+TEST_PROGS = \
+	tap_psStringSubstitute
 
-check_PROGRAMS = \
-	tap_psStringSubstitute
+if BUILD_TESTS
+bin_PROGRAMS = $(TEST_PROGS)
+else
+check_PROGRAMS = $(TEST_PROGS)
+endif
+TESTS = $(TEST_PROGS)
 
 CLEANFILES = $(check_DATA) temp/* log.txt log2.txt test.fits tst_psTrace02_OUT \
Index: trunk/psLib/test/sys/tap_psStringSubstitute.c
===================================================================
--- trunk/psLib/test/sys/tap_psStringSubstitute.c	(revision 8810)
+++ trunk/psLib/test/sys/tap_psStringSubstitute.c	(revision 8841)
@@ -1,3 +1,4 @@
 #include <stdio.h>
+#include <string.h>
 #include <pslib.h>