From 775239c2fcfe9d7729def5628dbe022c2a3b2b9e Mon Sep 17 00:00:00 2001
From: Albrecht Schlosser <albrechts.fltk@online.de>
Date: Sat, 3 Jan 2026 13:53:05 +0100
Subject: Fix compilation error on Windows (MinGW)
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error: ‘fabs’ was not declared in this scope
---
 src/drivers/WinAPI/Fl_WinAPI_Pen_Driver.cxx | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'src/drivers')

diff --git a/src/drivers/WinAPI/Fl_WinAPI_Pen_Driver.cxx b/src/drivers/WinAPI/Fl_WinAPI_Pen_Driver.cxx
index 561743c7f..dd205fac4 100644
--- a/src/drivers/WinAPI/Fl_WinAPI_Pen_Driver.cxx
+++ b/src/drivers/WinAPI/Fl_WinAPI_Pen_Driver.cxx
@@ -20,14 +20,13 @@
 #include <FL/Fl.H>
 #include <FL/Fl_Window.H>
 #include "../../Fl_Screen_Driver.H"
-
+#include <math.h>
 #include <windows.h>
 #include <ole2.h>
 #include <shellapi.h>
 // Some versions of MinGW now require us to explicitly include winerror to get S_OK defined
 #include <winerror.h>
 
-
 extern Fl_Window *fl_xmousewin;
 
 static constexpr uint8_t _FL_PEN = 0; // internal use
@@ -500,5 +499,3 @@ LRESULT fl_win32_tablet_handler(MSG& msg) {
   // want mouse events anymore!
   return 0;
 }
-
-
-- 
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