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-rw-r--r--src/settings.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/settings.cpp b/src/settings.cpp
index 1ba1d3b5c..fde955990 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -1352,7 +1352,7 @@ static GRFConfig *GRFLoadConfig(IniFile *ini, const char *grpname, bool is_stati
}
/* Check if item is valid */
- if (!FillGRFDetails(c, is_static)) {
+ if (!FillGRFDetails(c, is_static) || HasBit(c->flags, GCF_INVALID)) {
const char *msg;
if (c->status == GCS_NOT_FOUND) {
@@ -1361,6 +1361,8 @@ static GRFConfig *GRFLoadConfig(IniFile *ini, const char *grpname, bool is_stati
msg = "unsafe for static use";
} else if (HasBit(c->flags, GCF_SYSTEM)) {
msg = "system NewGRF";
+ } else if (HasBit(c->flags, GCF_INVALID)) {
+ msg = "incompatible to this version of OpenTTD";
} else {
msg = "unknown";
}