diff --git a/pkgs/development/tools/misc/automake/automake-1.15.x.nix b/pkgs/development/tools/misc/automake/automake-1.15.x.nix
deleted file mode 100644
index 3defb1dd9148..000000000000
--- a/pkgs/development/tools/misc/automake/automake-1.15.x.nix
+++ /dev/null
@@ -1,52 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  perl,
-  autoconf,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "automake";
-  version = "1.15.1";
-
-  src = fetchurl {
-    url = "mirror://gnu/automake/automake-${version}.tar.xz";
-    sha256 = "1bzd9g32dfm4rsbw93ld9x7b5nc1y6i4m6zp032qf1i28a8s6sxg";
-  };
-
-  nativeBuildInputs = [
-    autoconf
-    perl
-  ];
-  buildInputs = [ autoconf ];
-
-  setupHook = ./setup-hook.sh;
-
-  patches = [ ./help2man-SOURCE_DATE_EPOCH-support.patch ];
-
-  doCheck = false; # takes _a lot_ of time, fails 3 out of 2698 tests, all seem to be related to paths
-  doInstallCheck = false; # runs the same thing, fails the same tests
-
-  # The test suite can run in parallel.
-  enableParallelBuilding = true;
-
-  # Don't fixup "#! /bin/sh" in Libtool, otherwise it will use the
-  # "fixed" path in generated files!
-  dontPatchShebangs = true;
-
-  meta = {
-    branch = "1.15";
-    homepage = "https://www.gnu.org/software/automake/";
-    description = "GNU standard-compliant makefile generator";
-    license = lib.licenses.gpl2Plus;
-
-    longDescription = ''
-      GNU Automake is a tool for automatically generating
-      `Makefile.in' files compliant with the GNU Coding
-      Standards.  Automake requires the use of Autoconf.
-    '';
-
-    platforms = lib.platforms.all;
-  };
-}
diff --git a/pkgs/development/tools/misc/automake/help2man-SOURCE_DATE_EPOCH-support.patch b/pkgs/development/tools/misc/automake/help2man-SOURCE_DATE_EPOCH-support.patch
deleted file mode 100644
index 048f75e63343..000000000000
--- a/pkgs/development/tools/misc/automake/help2man-SOURCE_DATE_EPOCH-support.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-From 2e3357d7f0d63f1caeb40d9644c2436a5cd0da5f Mon Sep 17 00:00:00 2001
-From: David Terry <me@xwvvvvwx.com>
-Date: Fri, 18 Oct 2019 10:23:11 +0200
-Subject: [PATCH] help2man: add support for SOURCE_DATE_EPOCH
-
----
- doc/help2man | 14 +++++++++++++-
- 1 file changed, 13 insertions(+), 1 deletion(-)
-
-diff --git a/doc/help2man b/doc/help2man
-index af4306f..4a64167 100755
---- a/doc/help2man
-+++ b/doc/help2man
-@@ -213,11 +213,23 @@ sub get_option_value;
- my $help_text   = get_option_value $ARGV[0], $help_option;
- $version_text ||= get_option_value $ARGV[0], $version_option;
- 
-+# By default the generated manual pages will include the current date.  This may
-+# however be overriden by setting the environment variable $SOURCE_DATE_EPOCH
-+# to an integer value of the seconds since the UNIX epoch.  This is primarily
-+# intended to support reproducible builds (wiki.debian.org/ReproducibleBuilds)
-+# and will additionally ensure that the output date string is UTC.
-+my $epoch_secs = time;
-+if (exists $ENV{SOURCE_DATE_EPOCH} and $ENV{SOURCE_DATE_EPOCH} =~ /^(\d+)$/)
-+{
-+    $epoch_secs = $1;
-+    $ENV{TZ} = 'UTC';
-+}
-+
- # Translators: the following message is a strftime(3) format string, which in
- # the English version expands to the month as a word and the full year.  It
- # is used on the footer of the generated manual pages.  If in doubt, you may
- # just use %x as the value (which should be the full locale-specific date).
--my $date = enc strftime _("%B %Y"), localtime;
-+my $date = enc strftime _("%B %Y"), localtime $epoch_secs;
- (my $program = $ARGV[0]) =~ s!.*/!!;
- my $package = $program;
- my $version;
--- 
-2.23.0
-
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3cf08de32ee3..17d3cb80f782 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6862,8 +6862,6 @@ with pkgs;
 
   automake111x = callPackage ../development/tools/misc/automake/automake-1.11.x.nix { };
 
-  automake115x = callPackage ../development/tools/misc/automake/automake-1.15.x.nix { };
-
   automake116x = callPackage ../development/tools/misc/automake/automake-1.16.x.nix { };
 
   automake117x = callPackage ../development/tools/misc/automake/automake-1.17.x.nix { };