Clean up includes

src/logo/image/im6.c

@@ -1,6 +1,8 @@
 #ifdef FF_HAVE_IMAGEMAGICK6
 
 #include "image.h"
+
+#include <dlfcn.h>
 #include <magick/MagickCore.h>
 
 static FF_LIBRARY_SYMBOL(ResizeImage);

src/logo/image/im7.c

@@ -1,6 +1,8 @@
 #ifdef FF_HAVE_IMAGEMAGICK7
 
 #include "image.h"
+
+#include <dlfcn.h>
 #include <MagickCore/MagickCore.h>
 
 static FF_LIBRARY_SYMBOL(ResizeImage);

src/logo/image/image.c

@@ -17,6 +17,8 @@
 #include <sys/ioctl.h>
 
 #ifdef FF_HAVE_ZLIB
+#include <stdlib.h>
+#include <dlfcn.h>
 #include <zlib.h>
 
 static bool compressBlob(const FFinstance* instance, void** blob, size_t* length)