vendor: vendor_get_link_from_vendor() use wikipedia in some cases

Some vendors, like those defunct, may not have url, but may have
a wikipedia article. Use wikipedia in the link in those cases.

Also, Wikipedia offers more information than the vendor's site
in most cases, and has the vendor's url right there in the sidebar
to click, if desired. I think using wikipedia for links is
prefereable, but this could be turned off by setting
link_wikipedia to FALSE.

Signed-off-by: Burt P <pburt0@gmail.com>

hardinfo/vendor.c

@@ -422,33 +422,47 @@ gchar *vendor_get_link(const gchar *id_str)
 
 gchar *vendor_get_link_from_vendor(const Vendor *v)
 {
-    gboolean label_link_ok = FALSE;
 #if GTK_CHECK_VERSION(2, 18, 0)
-    label_link_ok = TRUE;
+    gboolean gtk_label_link_ok = TRUE;
+#else
+    gboolean gtk_label_link_ok = FALSE;
 #endif
+    gboolean link_ok = params.markup_ok && gtk_label_link_ok;
+    /* If using a real link, and wikipedia is available,
+     * target that instead of url. There's usually much more
+     * information there, plus easily click through to company url. */
+    gboolean link_wikipedia = TRUE;
 
-    if (!v) {
+    if (!v)
         return g_strdup(_("Unknown"));
-    }
 
-    if (!v->url) {
+    gchar *url = NULL;
+
+    if (link_ok && link_wikipedia && v->wikipedia
+        || v->wikipedia && !v->url)
+        url = g_strdup_printf("http://wikipedia.com/wiki/%s", v->wikipedia);
+    else if (v->url)
+        url = g_strdup(v->url);
+
+    if (!url)
         return g_strdup(v->name);
-    }
 
-    if (params.markup_ok && label_link_ok) {
+    auto_free(url);
+
+    if (link_ok) {
         const gchar *prefix;
 
-        if (!strncmp(v->url, "http://", sizeof("http://") - 1) ||
-            !strncmp(v->url, "https://", sizeof("https://") - 1)) {
+        if (!strncmp(url, "http://", sizeof("http://") - 1) ||
+            !strncmp(url, "https://", sizeof("https://") - 1)) {
             prefix = "";
         } else {
             prefix = "http://";
         }
 
-        return g_strdup_printf("<a href=\"%s%s\">%s</a>", prefix, v->url, v->name);
+        return g_strdup_printf("<a href=\"%s%s\">%s</a>", prefix, url, v->name);
     }
 
-    return g_strdup_printf("%s (%s)", v->name, v->url);
+    return g_strdup_printf("%s (%s)", v->name, url);
 }
 
 vendor_list vendor_list_concat_va(int count, vendor_list vl, ...) {