gnu: doxygen: Remove now unnecessary Hurd patch.

* gnu/packages/documentation.scm (doxygen)[arguments]: Remove
‘apply-patch’ phase.
* gnu/packages/patches/doxygen-hurd.patch: Remove.
* gnu/local.mk (dist_patch_DATA): Remove it.

Reported-by: yelninei
Change-Id: Ifa5eca19e0504b9c5df1f7a57c4d5c355049a41f

gnu/local.mk

@@ -1183,7 +1183,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/doc++-segfault-fix.patch			\
   %D%/packages/patches/dovecot-opensslv3.patch			\
   %D%/packages/patches/dovecot-trees-support-dovecot-2.3.patch	\
-  %D%/packages/patches/doxygen-hurd.patch			\
   %D%/packages/patches/dstat-fix-crash-when-specifying-delay.patch	\
   %D%/packages/patches/dstat-skip-devices-without-io.patch	\
   %D%/packages/patches/dtc-meson-cell-overflow.patch		\

gnu/packages/documentation.scm

@@ -228,15 +228,7 @@ (define-public doxygen
               (let ((/bin/sh (search-input-file inputs "/bin/sh")))
                 (substitute* "src/portable.cpp"
                   (("/bin/sh")
-                   /bin/sh)))))
-          #$@(if (target-hurd?)
-                 #~((add-after 'unpack 'apply-patch
-                      (lambda _
-                        (let ((patch-file
-                               #$(local-file
-                                  (search-patch "doxygen-hurd.patch"))))
-                          (invoke "patch" "--force" "-p1" "-i" patch-file)))))
-                 #~()))))
+                   /bin/sh))))))))
     (synopsis "Generate documentation from annotated sources")
     (description "Doxygen is the de facto standard tool for generating
 documentation from annotated C++ sources, but it also supports other popular

gnu/packages/patches/doxygen-hurd.patch

@@ -1,30 +0,0 @@
-Upstream status: Adapted from upstream.
-
-From d3d968e5835f449d7ea715f45160db81ea906303 Mon Sep 17 00:00:00 2001
-From: Samuel Thibault <samuel.thibault@ens-lyon.org>
-Date: Tue, 16 Aug 2022 20:29:54 +0200
-Subject: [PATCH] Fix build on GNU/Hurd
-
-There is no path length limitation there, even via pathconf.  But glibc
-provides a getcwd function that allocates the buffer dynamically so we can
-just leverage that.
----
- include/ghc/filesystem.hpp | 7 +++++++
- 1 file changed, 7 insertions(+)
-
---- a/filesystem/filesystem.hpp.orig	2022-08-11 22:14:32.000000000 +0200
-+++ b/filesystem/filesystem.hpp	2023-06-13 07:26:25.310000000 +0200
-@@ -4081,6 +4081,13 @@
-         return path();
-     }
-     return path(std::wstring(buffer.get()), path::native_format);
-+#elif defined(__GLIBC__)
-+    std::unique_ptr<char, decltype(&std::free)> buffer { ::getcwd(NULL, 0), std::free };
-+    if (buffer == nullptr) {
-+        ec = detail::make_system_error();
-+        return path();
-+    }
-+    return path(buffer.get());
- #else
-     size_t pathlen = static_cast<size_t>(std::max(int(::pathconf(".", _PC_PATH_MAX)), int(PATH_MAX)));
-     std::unique_ptr<char[]> buffer(new char[pathlen + 1]);