Simple fix for Apache bug #51257
https://issues.apache.org/bugzilla/show_bug.cgi?id=51257

--- server/Makefile.in
+++ server/Makefile.in
@@ -25,8 +25,8 @@
 include $(top_srcdir)/build/library.mk
 
 gen_test_char_OBJECTS = gen_test_char.lo
-gen_test_char: $(gen_test_char_OBJECTS)
-	$(LINK) $(EXTRA_LDFLAGS) $(gen_test_char_OBJECTS) $(EXTRA_LIBS)
+gen_test_char: gen_test_char.c
+	cc -I $(APR_INCLUDEDIR) -o $@ $<
 
 test_char.h: gen_test_char
 	./gen_test_char > test_char.h