diff -ru GraphicsMagick-1.3.35.orig/configure GraphicsMagick-1.3.35/configure
--- GraphicsMagick-1.3.35.orig/configure	2020-02-23 16:53:04.000000000 +0100
+++ GraphicsMagick-1.3.35/configure	2020-11-24 13:12:28.674236547 +0100
@@ -14614,6 +14614,16 @@
   dynamic_linker='GNU/Linux ld.so'
   ;;
 
+midipix*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
 netbsd*)
   version_type=sunos
   need_lib_prefix=no