From d6bf06e9976567c204235e76b09a93cc727df91b Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Thu, 7 May 2026 12:23:56 +0500
Subject: [PATCH] engine: common: check XASH3D_BASEDIR when opening log file,
 fixes engine.log creation on Android

---
 engine/common/sys_con.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/engine/common/sys_con.c b/engine/common/sys_con.c
index abd42279..1688f982 100644
--- a/engine/common/sys_con.c
+++ b/engine/common/sys_con.c
@@ -106,7 +106,17 @@ void Sys_InitLog( void )
 	// create log if needed
 	if( s_ld.log_active )
 	{
-		s_ld.logfile = fopen( s_ld.log_path, mode );
+		const char *basedir = getenv( "XASH3D_BASEDIR" );
+
+		if( !COM_StringEmptyOrNULL( basedir ) && s_ld.log_path[0] != '/' )
+		{
+			char fullpath[MAX_SYSPATH];
+			Q_snprintf( fullpath, sizeof( fullpath ), "%s/%s", basedir, s_ld.log_path );
+			s_ld.logfile = fopen( fullpath, mode );
+		}
+
+		if( !s_ld.logfile )
+			s_ld.logfile = fopen( s_ld.log_path, mode );
 
 		if ( !s_ld.logfile )
 		{