diff --git a/src/gallium/drivers/swr/rasterizer/common/os.cpp b/src/gallium/drivers/swr/rasterizer/common/os.cpp
index a40745f30fc..75c7161b4e2 100644
--- a/src/gallium/drivers/swr/rasterizer/common/os.cpp
+++ b/src/gallium/drivers/swr/rasterizer/common/os.cpp
@@ -111,6 +111,7 @@ void SWR_API SetCurrentThreadName(const char* pThreadName)
 #endif // Linux
 }
 
+#if defined(__APPLE__) || defined(FORCE_LINUX) || defined(__linux__) || defined(__gnu_linux__)
 static void
 SplitString(std::vector<std::string>& out_segments, const std::string& input, char splitToken)
 {
@@ -126,6 +127,7 @@ SplitString(std::vector<std::string>& out_segments, const std::string& input, ch
         }
     }
 }
+#endif // Unix
 
 void SWR_API CreateDirectoryPath(const std::string& path)
 {