--- Begin Message ---
Source: gcc-11
Version: 11.3.0-10
Severity: important
Tags: patch
User: debian-hurd@lists.debian.org
Usertags: hurd
Affects: gcc-11, gcc-snapshot
X-Debbugs-CC: debian-hurd@lists.debian.org
Hi,
gcc-11-11.3.0-10 in sid FTBFS on hurd-i386 due to failing linkage of
pthread_once (same error already fixed in gcc-12 and gcc-13):
/<<PKGBUILDDIR>>/build/i686-gnu/libstdc++-v3/include/i686-gnu/bits/gthr-
default.h:700: undefined reference to `pthread_once'
and more.
The patch at hand is: libstdc++-hurd.diff, attached here for convenience.
Thanks!
This is notably needed because in glibc 2.34, the move of pthread functions
into libc.so happened for Linux only, not GNU/Hurd.
The pthread_self() function can also always be used fine as it is on
GNU/Hurd.
libstdc++-v3/ChangeLog:
* config/os/gnu-linux/os_defines.h [!__linux__]
(_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
--- a/libstdc++-v3/config/os/gnu-linux/os_defines.h
+++ b/libstdc++-v3/config/os/gnu-linux/os_defines.h
@@ -49,22 +49,24 @@
// version dynamically in case it has changed since libstdc++ was configured.
#define _GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC __GLIBC_PREREQ(2,23)
-#if __GLIBC_PREREQ(2, 27)
-// Since glibc 2.27 pthread_self() is usable without linking to libpthread.
-# define _GLIBCXX_NATIVE_THREAD_ID pthread_self()
-#else
+#ifdef __linux__
+# if __GLIBC_PREREQ(2, 27)
+// Since glibc 2.27 Linux' pthread_self() is usable without linking to libpthread.
+# define _GLIBCXX_NATIVE_THREAD_ID pthread_self()
+# else
// Before then it was in libc.so.6 but not libc.a, and always returns 0,
// which breaks the invariant this_thread::get_id() != thread::id{}.
// So only use it if we know the libpthread version is available.
// Otherwise use (__gthread_t)1 as the ID of the main (and only) thread.
-# define _GLIBCXX_NATIVE_THREAD_ID \
- (__gthread_active_p() ? __gthread_self() : (__gthread_t)1)
-#endif
+# define _GLIBCXX_NATIVE_THREAD_ID \
+ (__gthread_active_p() ? __gthread_self() : (__gthread_t)1)
+# endif
-#if __GLIBC_PREREQ(2, 34)
-// Since glibc 2.34 all pthreads functions are usable without linking to
+# if __GLIBC_PREREQ(2, 34)
+// Since glibc 2.34 all Linux pthreads functions are usable without linking to
// libpthread.
-# define _GLIBCXX_GTHREAD_USE_WEAK 0
+# define _GLIBCXX_GTHREAD_USE_WEAK 0
+# endif
#endif
#endif
--- End Message ---
--- Begin Message ---
Source: gcc-11
Source-Version: 11.3.0-11
Done: Matthias Klose <doko@debian.org>
We believe that the bug you reported is fixed in the latest version of
gcc-11, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 1027840@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Matthias Klose <doko@debian.org> (supplier of updated gcc-11 package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Tue, 10 Jan 2023 06:08:48 +0100
Source: gcc-11
Architecture: source
Version: 11.3.0-11
Distribution: unstable
Urgency: medium
Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org>
Changed-By: Matthias Klose <doko@debian.org>
Closes: 1027840
Changes:
gcc-11 (11.3.0-11) unstable; urgency=medium
.
* Update to git 20230110 from the gcc-11 branch.
- Fix PR target/106736 (PPC), PR fortran/108131.
* Fix FTBFS on hurd-i386 (Svante Signell). Closes: #1027840.
* Bump standards version.
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--- End Message ---