diff -ru GraphicsMagick-1.3.35.orig/magick/studio.h GraphicsMagick-1.3.35/magick/studio.h--- GraphicsMagick-1.3.35.orig/magick/studio.h 2020-02-23 16:39:56.000000000 +0100+++ GraphicsMagick-1.3.35/magick/studio.h 2020-11-24 12:39:58.348234453 +0100@@ -232,7 +232,7 @@ #endif #if defined(HAVE_POLL)-# include <sys/poll.h>+# include <poll.h> #endif /*