From 6b66a879c41e5a0f24e17d1b9889e01b441d1186 Mon Sep 17 00:00:00 2001
From: Fabio Cavallo <punes.development@gmail.com>
Date: Thu, 1 Aug 2024 12:03:24 +0200
Subject: [PATCH] Check that the environment is Linux.

---
 src/core/jstick.c | 18 +++++++++++-------
 src/core/jstick.h |  4 +++-
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/core/jstick.c b/src/core/jstick.c
index 587d56a86..f0b20a126 100644
--- a/src/core/jstick.c
+++ b/src/core/jstick.c
@@ -154,15 +154,19 @@ void js_guid_create(_js_device *jdev) {
 		(*(word + 5)) = jdev->usb.product_id - 300;
 		(*(word + 6)) = jdev->usb.version;
 		(*(word + 7)) = jdev->usb.version - 400;
-
-		BYTE *byte = (BYTE *)&word[2];
-		int idx = 0;
-		for (const char *s = jdev->uniq; *s; ++s) {
-			byte[idx++] ^= *s;
-			if (idx > 11) {
-				idx = 0;
+#if defined (_linux__)
+		if (ustrlen(jdev->uniq)) {
+			BYTE *byte = (BYTE *)&word[2];
+			int idx = 0;
+
+			for (const char *s = jdev->uniq; *s; ++s) {
+				byte[idx++] ^= *s;
+				if (idx > 11) {
+					idx = 0;
+				}
 			}
 		}
+#endif
 	} else {
 		word += 2;
 		memcpy((char *)word, (char *)jdev->desc, sizeof(jdev->guid.data) - 4);
diff --git a/src/core/jstick.h b/src/core/jstick.h
index 61f2b4b0f..6c4eb06ff 100644
--- a/src/core/jstick.h
+++ b/src/core/jstick.h
@@ -161,11 +161,13 @@ typedef struct _js_device {
 		int size;
 	} report;
 #endif
+#endif
+#if defined (__linux__)
+	uTCHAR uniq[64];
 #endif
 	// comuni
 	enum _js_gamepad_type type;
 	uTCHAR desc[128];
-	uTCHAR uniq[64];
 	_js_info info;
 	_js_data data;
 	_input_guid guid;