gnu: automake: Update to 1.15.1.

* gnu/packages/autotools.scm (automake): Update to 1.15.1.
[source]: Remove patches.
(automake/latest): Remove package.
* gnu/packages/patches/automake-regexp-syntax.patch,
gnu/packages/patches/automake-test-gzip-warning.patch: Remove files.
* gnu/local.mk (dist_patch_DATA): Remove them.

gnu/local.mk

@@ -534,8 +534,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/ath9k-htc-firmware-gcc.patch		\
   %D%/packages/patches/ath9k-htc-firmware-objcopy.patch		\
   %D%/packages/patches/automake-skip-amhello-tests.patch	\
-  %D%/packages/patches/automake-regexp-syntax.patch		\
-  %D%/packages/patches/automake-test-gzip-warning.patch		\
   %D%/packages/patches/avahi-localstatedir.patch		\
   %D%/packages/patches/avidemux-install-to-lib.patch		\
   %D%/packages/patches/awesome-reproducible-png.patch		\

gnu/packages/autotools.scm

@@ -238,21 +238,18 @@ (define-public autobuild
     (license gpl3+)))
 
 (define-public automake
-  ;; Replace with 'automake/latest' on the next rebuild cycle.
   (package
     (name "automake")
-    (version "1.15")
+    (version "1.15.1")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/automake/automake-"
                                  version ".tar.xz"))
              (sha256
               (base32
-               "0dl6vfi2lzz8alnklwxzfz624b95hb1ipjvd3mk177flmddcf24r"))
+               "1bzd9g32dfm4rsbw93ld9x7b5nc1y6i4m6zp032qf1i28a8s6sxg"))
              (patches
-              (search-patches "automake-regexp-syntax.patch"
-                              "automake-skip-amhello-tests.patch"
-                              "automake-test-gzip-warning.patch"))))
+              (search-patches "automake-skip-amhello-tests.patch"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("autoconf" ,(autoconf-wrapper))
@@ -317,22 +314,6 @@ (define (starts-with-shebang? file)
 Makefile, simplifying the entire process for the developer.")
     (license gpl2+)))                      ; some files are under GPLv3+
 
-
-(define-public automake/latest
-  ;; Merge with 'automake' on the next rebuild cycle.
-  (package
-    (inherit automake)
-    (version "1.15.1")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnu/automake/automake-"
-                                  version ".tar.xz"))
-              (sha256
-               (base32
-                "1bzd9g32dfm4rsbw93ld9x7b5nc1y6i4m6zp032qf1i28a8s6sxg"))
-              (patches
-               (search-patches "automake-skip-amhello-tests.patch"))))))
-
 (define-public libtool
   (package
     (name "libtool")

gnu/packages/patches/automake-regexp-syntax.patch

@@ -1,34 +0,0 @@
-From <https://lists.gnu.org/archive/html/automake-patches/2015-07/msg00000.html>.
-See also <http://bugs.gnu.org/22372>.
-
-From 34163794a58b5bd91c5d6bd9adf5437571c7a479 Mon Sep 17 00:00:00 2001
-From: Pavel Raiskup <praiskup@redhat.com>
-Date: Tue, 7 Jul 2015 10:54:24 +0200
-Subject: [PATCH] bin/automake: escape '{' in regexp pattern
-
-Based on perlre(1) documentation:
-.. in Perl v5.26, literal uses of a curly bracket will be required
-to be escaped, say by preceding them with a backslash ("\{" ) or
-enclosing them within square brackets ("[{]") ..
-
-References:
-https://bugzilla.redhat.com/1239379
-
-* bin/automake.in (substitute_ac_subst_variables): Escape the
-occurrence of '{' character.
----
- bin/automake.in | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/bin/automake.in b/bin/automake.in
-index 0c29184..c294ced 100644
---- a/bin/automake.in
-+++ b/bin/automake.in
-@@ -3898,7 +3898,7 @@ sub substitute_ac_subst_variables_worker
- sub substitute_ac_subst_variables
- {
-   my ($text) = @_;
--  $text =~ s/\${([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
-+  $text =~ s/\$\{([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker ($1)/ge;
-   return $text;
- }

gnu/packages/patches/automake-test-gzip-warning.patch

@@ -1,17 +0,0 @@
-Adjust test to ignore gzip 1.8+ warnings.
-
---- automake-1.15/t/distcheck-no-prefix-or-srcdir-override.sh	2016-06-14 00:36:26.554218552 +0200
-+++ automake-1.15/t/distcheck-no-prefix-or-srcdir-override.sh	2016-06-14 00:37:52.903157770 +0200
-@@ -49,7 +49,11 @@ grep "cannot find sources.* in foobar" s
- 
- ./configure
- run_make -E -O distcheck
--test ! -s stderr
-+
-+# Gzip 1.8+ emits warnings like "gzip: warning: GZIP environment
-+# variable is deprecated"; filter them out.
-+test `grep -v '^gzip: warning' stderr | wc -l` -eq 0
-+
- # Sanity check: the flags have been actually seen.
- $PERL -e 'undef $/; $_ = <>; s/ \\\n/ /g; print;' <stdout >t
- grep '/configure .* --srcdir am-src'   t || exit 99