fixed compilation warnings and errors when not using curl

src/libstrongswan/Makefile.am

@@ -54,6 +54,10 @@ if USE_LEAK_DETECTIVE
   AM_CFLAGS = -DLEAK_DETECTIVE
 endif
 
+if USE_LIBCURL
+  libstrongswan_la_LIBADD += -lcurl
+endif
+
 asn1/oid.c :	asn1/oid.txt asn1/oid.pl
 		cd asn1 && $(PERL) oid.pl
 

src/libstrongswan/crypto/ca.c

@@ -456,7 +456,6 @@ static int print(FILE *stream, const struct printf_info *info,
 	bool utc = TRUE;
 	int written = 0;
 	const x509_t *cacert;
-	chunk_t keyid;
 	
 	if (info->alt)
 	{

src/libstrongswan/crypto/ocsp.c

@@ -467,7 +467,6 @@ static bool ocsp_parse_basic_response(chunk_t blob, int level0, response_t *res)
 {
 	u_int level, version;
 	u_int extn_oid = OID_UNKNOWN;
-	u_char buf[BUF_LEN];
 	asn1_ctx_t ctx;
 	bool critical;
 	chunk_t object;

src/libstrongswan/utils/fetcher.c

@@ -137,7 +137,9 @@ static chunk_t post(private_fetcher_t *this, const char *request_type, chunk_t r
  */
 static void destroy(private_fetcher_t *this)
 {
+#ifdef LIBCURL
 	curl_easy_cleanup(this->curl);
+#endif /* LIBCURL */
 	free(this);
 }
 

src/libstrongswan/utils/leak_detective.c

@@ -176,8 +176,9 @@ struct whitelist_t {
 };
 
 #ifdef LIBCURL
+/* dummy declaration for whitelisting */
 void *Curl_getaddrinfo(void);
-#endif
+#endif /* LIBCURL */
 
 whitelist_t whitelist[] = {
 	{pthread_create,			2542},
@@ -191,8 +192,10 @@ whitelist_t whitelist[] = {
 	{register_printf_function,	 159},
 	{syslog,					  45},
 	{dlopen,					 109},
+#	ifdef LIBCURL
 	/* from /usr/lib/libcurl.so.3 */
 	{Curl_getaddrinfo,			 480},
+#	endif /* LIBCURL */
 };
 
 /**