--- /dev/null
+--- Zarith-release-1.9.1/configure.orig 2019-08-28 16:17:04.000000000 +0200
++++ Zarith-release-1.9.1/configure 2019-12-28 15:42:01.220520989 +0100
+@@ -323,7 +323,11 @@
+ arch='x86_64'
+ fi
+ ;;
+- i486-*linux-gnu|i686-*linux-gnu|i486-kfreebsd-gnu)
++ x86_64-*linux-gnux32)
++ ccdef="-DZ_ELF -DZ_DOT_LABEL_PREFIX $ccdef"
++ arch='x86_64'
++ ;;
++ i[456]86-*linux-gnu|iathlon-*linux-gnu|i486-kfreebsd-gnu)
+ ccdef="-DZ_ELF -DZ_DOT_LABEL_PREFIX $ccdef"
+ arch='i686';;
+ i686-*cygwin)