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From: Jonathan Wakely <redi@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r13-1320] libstdc++: Do not optimize away storing pathname if it's needed Date: Tue, 28 Jun 2022 11:08:44 +0000 (GMT) [thread overview] Message-ID: <20220628110844.5A842383577A@sourceware.org> (raw) https://gcc.gnu.org/g:835b19936bf30d693783bfa39145a4ce243bbd7c commit r13-1320-g835b19936bf30d693783bfa39145a4ce243bbd7c Author: Jonathan Wakely <jwakely@redhat.com> Date: Tue Jun 28 09:26:12 2022 +0100 libstdc++: Do not optimize away storing pathname if it's needed libstdc++-v3/ChangeLog: * src/c++17/fs_dir.cc (_Dir::_Dir) [!_GLIBCXX_HAVE_OPENAT]: Always store pathname if we don't have openat or unlinkat, because the full path is needed to open sub-directories and remove entries. Diff: --- libstdc++-v3/src/c++17/fs_dir.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libstdc++-v3/src/c++17/fs_dir.cc b/libstdc++-v3/src/c++17/fs_dir.cc index 25b33baa875..025317b0a08 100644 --- a/libstdc++-v3/src/c++17/fs_dir.cc +++ b/libstdc++-v3/src/c++17/fs_dir.cc @@ -48,7 +48,7 @@ struct fs::_Dir : _Dir_base [[maybe_unused]] bool filename_only, error_code& ec) : _Dir_base(fdcwd(), p.c_str(), skip_permission_denied, nofollow, ec) { -#if _GLIBCXX_HAVE_DIRFD +#if _GLIBCXX_HAVE_DIRFD && _GLIBCXX_HAVE_OPENAT && _GLIBCXX_HAVE_UNLINKAT if (filename_only) return; // Do not store path p when we aren't going to use it. #endif
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