Merge bitcoin/bitcoin#29987: guix: build with glibc 2.31

b5fc6d46a3854c18f6e8dfc89540d24ef778caa2 guix: use glibc 2.31 (fanquake)

Pull request description:

  Set minimum required glibc to 2.31.
  The glibc 2.31 branch is still maintained: https://sourceware.org/git/?p=glibc.git;a=shortlog;h=refs/heads/release/2.31/master.

  Remove the stack-protector check from test-security-check, as the test
  no-longer fails, and given the control we have of the end, the actual
  security-check test seems sufficient (this might also be applied to some
  of the other checks).

  Drops runtime support for Ubuntu Bionic 18.04 and RHEL-8 from the release binaries.

ACKs for top commit:
  TheCharlatan:
    ACK b5fc6d46a3854c18f6e8dfc89540d24ef778caa2

Tree-SHA512: ba7e727240fa0ebebfb8b749024c71cbfdec37c33b39627866d78f9318ccdc687fd5103a63ee0e98cf809d9954dde56b1b305691c33d1de275ed0519f716c921

1 files changed, 0 insertions, 53 deletions

diff --git a/contrib/guix/patches/glibc-2.27-no-librt.patch b/contrib/guix/patches/glibc-2.27-no-librt.patch
deleted file mode 100644
index 4f2092ba7e..0000000000
--- a/contrib/guix/patches/glibc-2.27-no-librt.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-This patch can be dropped when we are building with glibc 2.30+.
-
-commit 6e41ef56c9baab719a02f1377b1e7ce7bff61e73
-Author: Florian Weimer <fweimer@redhat.com>
-Date:   Fri Feb 8 10:21:56 2019 +0100
-
-    rt: Turn forwards from librt to libc into compat symbols [BZ #24194]
-    
-    As the  result of commit 6e6249d0b461b952d0f544792372663feb6d792a
-    ("BZ#14743: Move clock_* symbols from librt to libc."), in glibc 2.17,
-    clock_gettime, clock_getres, clock_settime, clock_getcpuclockid,
-    clock_nanosleep were added to libc, and the file rt/clock-compat.c
-    was added with forwarders to the actual implementations in libc.
-    These forwarders were wrapped in
-
-    #if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_17)
-    
-    so that they are not present for newer architectures (such as
-    powerpc64le) with a 2.17 or later ABI baseline.  But the forwarders
-    were not marked as compatibility symbols.  As a result, on older
-    architectures, historic configure checks such as
-    
-    AC_CHECK_LIB(rt, clock_gettime)
-    
-    still cause linking against librt, even though this is completely
-    unnecessary.  It also creates a needless porting hazard because
-    architectures behave differently when it comes to symbol availability.
-    
-    Reviewed-by: Carlos O'Donell <carlos@redhat.com>
-
-diff --git a/rt/clock-compat.c b/rt/clock-compat.c
-index f816973c05..11e71aa890 100644
---- a/rt/clock-compat.c
-+++ b/rt/clock-compat.c
-@@ -30,14 +30,16 @@
- #if HAVE_IFUNC
- # undef INIT_ARCH
- # define INIT_ARCH()
--# define COMPAT_REDIRECT(name, proto, arglist) libc_ifunc (name, &__##name)
-+# define COMPAT_REDIRECT(name, proto, arglist) libc_ifunc (name, &__##name) \
-+    compat_symbol (librt, name, name, GLIBC_2_2);
- #else
- # define COMPAT_REDIRECT(name, proto, arglist)				      \
-   int									      \
-   name proto								      \
-   {									      \
-     return __##name arglist;						      \
--  }
-+  }									      \
-+  compat_symbol (librt, name, name, GLIBC_2_2);
- #endif
- 
- COMPAT_REDIRECT (clock_getres,