diff --git a/lib/ffts/debian/patches/fix_min_autoconf_version.diff b/lib/ffts/debian/patches/fix_min_autoconf_version.diff
new file mode 100644
index 0000000..44320ad
--- /dev/null
+++ b/lib/ffts/debian/patches/fix_min_autoconf_version.diff
@@ -0,0 +1,11 @@
+--- configure.ac
++++ configure.ac
+@@ -1,7 +1,7 @@
+ #                                               -*- Autoconf -*-
+ # Process this file with autoconf to produce a configure script.
+ 
+-AC_PREREQ([2.68])
++AC_PREREQ([2.65])
+ AC_INIT(ffts, 0.7, amb@anthonix.com)
+ AM_INIT_AUTOMAKE(ffts, 0.7)
+ 
diff --git a/lib/ffts/debian/patches/series b/lib/ffts/debian/patches/series
new file mode 100644
index 0000000..7c09396
--- /dev/null
+++ b/lib/ffts/debian/patches/series
@@ -0,0 +1 @@
+fix_min_autoconf_version.diff