X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=winboard%2Fwoptions.c;fp=winboard%2Fwoptions.c;h=d4f54d0c5ac4879eace34757b3f371be3ba3cf5b;hb=1041d8a7aa236941d133d8992dbe0fb39fd57b53;hp=0d22012774e4ffeb2132d559a0b591c6c5214a24;hpb=26871f77825f9120b20ff687854fad2d2f31b9a5;p=xboard.git

diff --git a/winboard/woptions.c b/winboard/woptions.c
index 0d22012..d4f54d0 100644
--- a/winboard/woptions.c
+++ b/winboard/woptions.c
@@ -896,13 +896,14 @@ VariantWhichRadio(HWND hDlg)
 void
 VariantShowRadio(HWND hDlg)
 {
-  char c = *engineVariant;
+  char c = *engineVariant, *v, *p;
   int i=0, j;
   CheckDlgButton(hDlg, radioButton[gameInfo.variant], TRUE);
   *engineVariant = NULLCHAR; // [HGM] kludge to prevent VariantName will always return engineVariant
   while((j = radioButton[i++]) != -2) {
 	if(j == -1) continue; // no menu button
-	EnableWindow(GetDlgItem(hDlg, j), appData.noChessProgram || strstr(first.variants, VariantName(i-1)));
+	v = VariantName(i-1); p = strstr(first.variants, v);
+	EnableWindow(GetDlgItem(hDlg, j), appData.noChessProgram || p && (!*v || strlen(v) == strlen[p] || p[strlen[v]] == ','));
   }
   *engineVariant = c;
   for(i=0; i<15; i++) { // initialize engine-defined variants