From 775a54846fc01ec9e977bad7cfa810ac1789d5b0 Mon Sep 17 00:00:00 2001
From: bubnikv <bubnikv@gmail.com>
Date: Tue, 20 Aug 2019 17:46:19 +0200
Subject: [PATCH] Fixed compilation of Win32 message boxes on unix systems.

---
 src/PrusaSlicer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PrusaSlicer.cpp b/src/PrusaSlicer.cpp
index 81422f4a88..a75635ae60 100644
--- a/src/PrusaSlicer.cpp
+++ b/src/PrusaSlicer.cpp
@@ -71,7 +71,7 @@ int CLI::run(int argc, char **argv)
         	"You may need to reconfigure the missing locales, likely by running the \"locale-gen\"" and \"dpkg-reconfigure locales\" commands.\n"
 #endif
         	SLIC3R_APP_NAME " will now terminate.\n\n") + ex.what();
-    #ifdef SLIC3R_GUI
+    #if defined(_WIN32) && defined(SLIC3R_GUI)
         if (m_actions.empty())
         	// Empty actions means Slicer is executed in the GUI mode. Show a GUI message.
             MessageBoxA(NULL, text.c_str(), caption.c_str(), MB_OK | MB_ICONERROR);