From: Jonathan Wakely <jwakely@redhat.com>
Date: Tue, 8 Feb 2022 21:05:30 +0000 (+0000)
Subject: libstdc++: Fix directory iterator build for newlib
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3d5f4f76e6db0895181ebca538748379bfe6058f;p=test_jj.git

libstdc++: Fix directory iterator build for newlib

When building for newlib HAVE_OPENAT and HAVE_UNLINKAT are (sometimes?)
defined, but <fcntl.h> is only included when HAVE_DIRENT_H is defined.
Since directory iterators are completely useless without <dirent.h>,
just override the HAVE_OPENAT and HAVE_UNLINKAT detection when we don't
have <dirent.h>.

libstdc++-v3/ChangeLog:

	* src/filesystem/dir-common.h (_GLIBCXX_HAVE_DIRFD): Undefine
	when <dirent.h> is not available.
	(_GLIBCXX_HAVE_UNLINKAT):  Likewise.
---

diff --git a/libstdc++-v3/src/filesystem/dir-common.h b/libstdc++-v3/src/filesystem/dir-common.h
index 511b988..365fd52 100644
--- a/libstdc++-v3/src/filesystem/dir-common.h
+++ b/libstdc++-v3/src/filesystem/dir-common.h
@@ -70,6 +70,8 @@ struct DIR { };
 inline DIR* opendir(const char*) { return nullptr; }
 inline dirent* readdir(DIR*) { return nullptr; }
 inline int closedir(DIR*) { return -1; }
+#undef _GLIBCXX_HAVE_DIRFD
+#undef _GLIBCXX_HAVE_UNLINKAT
 #endif
 } // namespace __gnu_posix