Use own minimal "getopt" function to support compiling using MSVC.
diff --git a/Makefile.in b/Makefile.in
index 002d25d..0c091be 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -202,6 +202,18 @@
test/dtls_srtp_driver$(EXE): test/dtls_srtp_driver.c test/getopt_s.c
$(COMPILE) $(LDFLAGS) -o $@ $^ $(LIBS) $(SRTPLIB)
+crypto/test/cipher_driver$(EXE): crypto/test/cipher_driver.c test/getopt_s.c
+ $(COMPILE) $(LDFLAGS) -o $@ $^ $(LIBS) $(SRTPLIB)
+
+crypto/test/kernel_driver$(EXE): crypto/test/kernel_driver.c test/getopt_s.c
+ $(COMPILE) $(LDFLAGS) -o $@ $^ $(LIBS) $(SRTPLIB)
+
+crypto/test/rand_gen$(EXE): crypto/test/rand_gen.c test/getopt_s.c
+ $(COMPILE) $(LDFLAGS) -o $@ $^ $(LIBS) $(SRTPLIB)
+
+crypto/test/rand_gen_soak$(EXE): crypto/test/rand_gen_soak.c test/getopt_s.c
+ $(COMPILE) $(LDFLAGS) -o $@ $^ $(LIBS) $(SRTPLIB)
+
test: $(testapp)
@echo "Build done. Please run '$(MAKE) runtest' to run self tests."