wolfssl: require WOLFSSL_SYS_CA_CERTS for loading system CA

This define is set in wolfssl's options.h file when this function and
feature is present. Handles both builds with the feature explicitly
disabled and wolfSSL versions before 5.5.2 - which introduced this API
call.

Closes #12108

diff --git a/lib/vtls/wolfssl.c b/lib/vtls/wolfssl.c
index b1384a644baa078b46ae64be4aeec2df606857b2..135ba697edccab80a5679c3863ac1ce4ce45c881 100644 (file)
--- a/lib/vtls/wolfssl.c
+++ b/lib/vtls/wolfssl.c
@@ -513,7 +513,7 @@ wolfssl_connect_step1(struct Curl_cfilter *cf, struct Curl_easy *data)
     }
   }
 
-#ifndef NO_FILESYSTEM
+#if !defined(NO_FILESYSTEM) && defined(WOLFSSL_SYS_CA_CERTS)
   /* load native CA certificates */
   if(ssl_config->native_ca_store) {
     if(wolfSSL_CTX_load_system_CA_certs(backend->ctx) != WOLFSSL_SUCCESS) {