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guix/gnu/packages/patches/doxygen-hurd.patch

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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]);