Commit f4c8bc37b for imagemagick.org

commit f4c8bc37bff097958a6418f37679ea9926922a89
Author: Cristy <urban-warrior@imagemagick.org>
Date:   Tue Mar 3 19:52:19 2026 -0500

    eliminate compiler warning

diff --git a/MagickCore/colorspace-private.h b/MagickCore/colorspace-private.h
index b51fd107a..623d31fe9 100644
--- a/MagickCore/colorspace-private.h
+++ b/MagickCore/colorspace-private.h
@@ -1657,7 +1657,7 @@ static inline void ConvertRGBToOklch(const double red,const double green,
   double H_ok = atan2(b_ok,a_ok);  /* radians */

   if (H_ok < 0.0)
-    H_ok+=2.0*M_PI;
+    H_ok+=2.0*MagickPI;
   *L=L_ok;
   *C=C_ok;
   *H=H_ok;