diff --git a/configure.ac b/configure.ac
index 912201696b..9e3a7cca8a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -919,8 +919,6 @@ if test "$ac_cv_sys_large_files" != "" &&
   CORE_CPPFLAGS="$CORE_CPPFLAGS -D_LARGE_FILES=$ac_cv_sys_large_files"
 fi
 
-AC_SEARCH_LIBS([clock_gettime],[rt])
-
 if test "$enable_gprof" = "yes"; then
     dnl -pg is incompatible with -pie. Since hardening and profiling together doesn't make sense,
     dnl we simply make them mutually exclusive here. Additionally, hardened toolchains may force
diff --git a/contrib/devtools/symbol-check.py b/contrib/devtools/symbol-check.py
index d85912398d..8a2ea3e1fa 100755
--- a/contrib/devtools/symbol-check.py
+++ b/contrib/devtools/symbol-check.py
@@ -98,7 +98,6 @@ ELF_ALLOWED_LIBRARIES = {
 'libc.so.6', # C library
 'libpthread.so.0', # threading
 'libm.so.6', # math library
-'librt.so.1', # real-time (clock)
 'libatomic.so.1',
 'ld-linux-x86-64.so.2', # 64-bit dynamic linker
 'ld-linux.so.2', # 32-bit dynamic linker
diff --git a/contrib/guix/manifest.scm b/contrib/guix/manifest.scm
index a9654dec5b..31ac44f8e2 100644
--- a/contrib/guix/manifest.scm
+++ b/contrib/guix/manifest.scm
@@ -558,7 +558,8 @@ inspecting signatures in Mach-O binaries.")
                 "0azpb9cvnbv25zg8019rqz48h8i2257ngyjg566dlnp74ivrs9vq"))
               (patches (search-our-patches "glibc-2.27-riscv64-Use-__has_include-to-include-asm-syscalls.h.patch"
                                            "glibc-2.27-fcommon.patch"
-                                           "glibc-2.27-guix-prefix.patch"))))))
+                                           "glibc-2.27-guix-prefix.patch"
+                                           "glibc-2.27-no-librt.patch"))))))
 
 (packages->manifest
  (append
diff --git a/contrib/guix/patches/glibc-2.27-no-librt.patch b/contrib/guix/patches/glibc-2.27-no-librt.patch
new file mode 100644
index 0000000000..4f2092ba7e
--- /dev/null
+++ b/contrib/guix/patches/glibc-2.27-no-librt.patch
@@ -0,0 +1,53 @@
+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,