gnu: aria2: Unbundle wslay.

* gnu/packages/bittorrent.scm (aria2)[source]: Add snippet to delete
configure script and remove bundled dependency.  Add a patch.
[native-inputs]: Add autoconf, automake, gettext-minimal, libtool.
[inputs]: Add wslay.
* gnu/packages/patches/aria2-unbundle-wslay.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

Change-Id: I92390a872454726ff9587518bb535d2105c44ef3

gnu/local.mk

@@ -920,6 +920,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/aoflagger-use-system-provided-pybind11.patch \
   %D%/packages/patches/apr-fix-atomics.patch			\
   %D%/packages/patches/apr-skip-getservbyname-test.patch	\
+  %D%/packages/patches/aria2-unbundle-wslay.patch		\
   %D%/packages/patches/ark-skip-xar-test.patch			\
   %D%/packages/patches/arpack-ng-propagate-rng-state.patch	\
   %D%/packages/patches/asli-use-system-libs.patch		\

gnu/packages/bittorrent.scm

@@ -78,6 +78,7 @@
   #:use-module (gnu packages sqlite)
   #:use-module (gnu packages ssh)
   #:use-module (gnu packages tls)
+  #:use-module (gnu packages web)
   #:use-module (gnu packages xml))
 
 (define-public transmission
@@ -293,7 +294,12 @@ Transmission BitTorrent daemon.")
                                   "/aria2-" version ".tar.xz"))
               (sha256
                (base32
-                "0sxng4pynhj2qinranpv6wyzys3d42kz1gg2nrn63sw5f2nj1930"))))
+                "0sxng4pynhj2qinranpv6wyzys3d42kz1gg2nrn63sw5f2nj1930"))
+              (patches (search-patches "aria2-unbundle-wslay.patch"))
+              (snippet
+               #~(begin (use-modules (guix build utils))
+                        (delete-file-recursively "deps")
+                        (delete-file "configure")))))
     (build-system gnu-build-system)
     (arguments
      (list
@@ -312,7 +318,11 @@ Transmission BitTorrent daemon.")
                  (("CPPUNIT_TEST_SUITE_REGISTRATION\\(LpdMessageReceiverTest\\);" text)
                   (string-append "// " text))))))))
     (native-inputs
-     (list cppunit ; for the tests
+     (list autoconf ; since we adjusted configure.ac
+           automake
+           gettext-minimal
+           libtool
+           cppunit ; for the tests
            pkg-config))
     (inputs
      (list c-ares
@@ -322,6 +332,7 @@ Transmission BitTorrent daemon.")
            libxml2
            nettle
            sqlite
+           wslay
            zlib))
     (home-page "https://aria2.github.io/")
     (synopsis "Utility for parallel downloading files")

gnu/packages/patches/aria2-unbundle-wslay.patch

@@ -0,0 +1,54 @@
+This patch causes aria2 to depend on an external wslay.
+The wslay version was copied from the configure.ac in deps/wslay
+configure still needs to be deleted to update the script
+deps/wslay is no longer necessary and can also be removed
+
+diff --git a/Makefile.am b/Makefile.am
+index afe70a2..8c4d058 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -1,4 +1,4 @@
+-SUBDIRS =  po lib deps src doc test
++SUBDIRS =  po lib src doc test
+ 
+ ACLOCAL_AMFLAGS = -I m4 --install
+ RST2HTML = @RST2HTML@
+diff --git a/configure.ac b/configure.ac
+index 14b340f..74d5937 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -1001,15 +1001,18 @@ if test "x$have_option_const_name" = "xyes"; then
+ fi
+ 
+ if test "x$enable_websocket" = "xyes"; then
+-  AC_CONFIG_SUBDIRS([deps/wslay])
++  PKG_CHECK_MODULES([WSLAY], [libwslay >= 1.1.1], [have_wslay=yes], [have_wslay=no])
+   enable_websocket=yes
+   AC_DEFINE([ENABLE_WEBSOCKET], [1],
+             [Define 1 if WebSocket support is enabled.])
+-  # $(top_srcdir) for `make distcheck`
+-  WSLAY_CFLAGS="-I\$(top_builddir)/deps/wslay/lib/includes -I\$(top_srcdir)/deps/wslay/lib/includes"
+-  WSLAY_LIBS="\$(top_builddir)/deps/wslay/lib/libwslay.la"
+-  AC_SUBST([WSLAY_CFLAGS])
+-  AC_SUBST([WSLAY_LIBS])
++  if test "x$have_wslay" = "xyes"; then
++    WSLAY_CFLAGS="$WSLAY_CFLAGS"
++    WSLAY_LIBS="$WSLAY_LIBS"
++    AC_SUBST([WSLAY_CFLAGS])
++    AC_SUBST([WSLAY_LIBS])
++  else
++    ARIA2_DEP_NOT_MET([wslay])
++  fi
+ fi
+ AM_CONDITIONAL([ENABLE_WEBSOCKET], [test "x$enable_websocket" = "xyes"])
+ 
+@@ -1071,8 +1074,7 @@ AC_CONFIG_FILES([Makefile
+                 doc/manual-src/ru/Makefile
+                 doc/manual-src/ru/conf.py
+                 doc/manual-src/pt/Makefile
+-                doc/manual-src/pt/conf.py
+-                deps/Makefile])
++                doc/manual-src/pt/conf.py])
+ AC_OUTPUT
+ 
+ AC_MSG_NOTICE([summary of build options: