diff --git a/gnu/local.mk b/gnu/local.mk
index edb4e69895..ae708248e8 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1015,7 +1015,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/ghostscript-no-header-id.patch		\
   %D%/packages/patches/ghostscript-no-header-uuid.patch		\
   %D%/packages/patches/ghostscript-no-header-creationdate.patch \
-  %D%/packages/patches/glib-tests-timer.patch			\
+  %D%/packages/patches/glib-disable-failing-tests.patch		\
   %D%/packages/patches/glibc-CVE-2015-5180.patch		\
   %D%/packages/patches/glibc-CVE-2015-7547.patch		\
   %D%/packages/patches/glibc-CVE-2016-3075.patch		\
diff --git a/gnu/packages/glib.scm b/gnu/packages/glib.scm
index 9f0721b8c2..057b90eaa1 100644
--- a/gnu/packages/glib.scm
+++ b/gnu/packages/glib.scm
@@ -38,6 +38,7 @@
   #:use-module (gnu packages compression)
   #:use-module (gnu packages docbook)
   #:use-module (gnu packages documentation)
+  #:use-module (gnu packages elf)
   #:use-module (gnu packages enlightenment)
   #:use-module (gnu packages file)
   #:use-module (gnu packages flex)
@@ -176,213 +177,114 @@ shared NFS home directories.")
 
 (define glib
   (package
-   (name "glib")
-   (version "2.62.6")
-   (source (origin
-            (method url-fetch)
-            (uri (string-append "mirror://gnome/sources/"
-                                name "/" (string-take version 4) "/"
-                                name "-" version ".tar.xz"))
-            (sha256
-             (base32
-              "174bsmbmcvaw69ff9g60q5sx0fn23rkhqcwqz17h5s7sprps4kqh"))
-            (patches (search-patches "glib-tests-timer.patch"))
-            (modules '((guix build utils)))
-            (snippet
-             '(begin
-                (substitute* "tests/spawn-test.c"
-                  (("/bin/sh") "sh"))
-                #t))))
-   (build-system meson-build-system)
-   (outputs '("out"           ; everything
-              "bin"))         ; glib-mkenums, gtester, etc.; depends on Python
-   (propagated-inputs
-    `(("pcre" ,pcre)  ; in the Requires.private field of glib-2.0.pc
-      ("libffi" ,libffi) ; in the Requires.private field of gobject-2.0.pc
-      ;; These are in the Requires.private field of gio-2.0.pc
-      ("util-linux" ,util-linux "lib")  ;for libmount
-      ("libselinux" ,libselinux)
-      ("zlib" ,zlib)))
-   (native-inputs
-    `(("gettext" ,gettext-minimal)
-      ("m4" ,m4) ; for installing m4 macros
-      ("dbus" ,dbus)                              ; for GDBus tests
-      ("pkg-config" ,pkg-config)
-      ("python" ,python-wrapper)
-      ("perl" ,perl)                              ; needed by GIO tests
-      ("tzdata" ,tzdata-for-tests)))                  ; for tests/gdatetime.c
-   (arguments
-    `(#:disallowed-references (,tzdata-for-tests)
-      #:phases
-      (modify-phases %standard-phases
-        (add-after 'unpack 'patch-dbus-launch-path
-          (lambda* (#:key inputs #:allow-other-keys)
-            (let ((dbus (assoc-ref inputs "dbus")))
-              (substitute* "gio/gdbusaddress.c"
-                (("command_line = g_strdup_printf \\(\"dbus-launch")
-                 (string-append "command_line = g_strdup_printf (\""
-                                dbus "/bin/dbus-launch")))
-              #t)))
-        (add-after 'unpack 'patch-gio-launch-desktop
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let ((out (assoc-ref outputs "out")))
-              ;; See also <https://gitlab.gnome.org/GNOME/glib/issues/1633>
-              ;; for another future fix.
-              (substitute* "gio/gdesktopappinfo.c"
-               (("gio-launch-desktop")
-                (string-append out "/libexec/gio-launch-desktop")))
-              #t)))
-        (add-before 'build 'pre-build
-          (lambda* (#:key inputs outputs #:allow-other-keys)
-            ;; For tests/gdatetime.c.
-            (setenv "TZDIR"
-                    (string-append (assoc-ref inputs "tzdata")
-                                   "/share/zoneinfo"))
-
-            ;; Some tests want write access there.
-            (setenv "HOME" (getcwd))
-            (setenv "XDG_CACHE_HOME" (getcwd))
-            #t))
-        (add-after 'unpack 'disable-failing-tests
-          (lambda _
-            (let ((disable
-                   (lambda (test-file test-paths)
-                     (define pattern+procs
-                       (map (lambda (test-path)
-                              (cons
-                               ;; XXX: only works for single line statements.
-                               (format #f "g_test_add_func.*\"~a\".*" test-path)
-                               (const "")))
-                            test-paths))
-                     (substitute test-file pattern+procs)))
-                  (failing-tests
-                   '(("glib/tests/thread.c"
-                      (;; prlimit(2) returns ENOSYS on Linux 2.6.32-5-xen-amd64
-                       ;; as found on hydra.gnu.org, and strace(1) doesn't
-                       ;; recognize it.
-                       "/thread/thread4"))
-
-                     ;; This tries to find programs in FHS directories.
-                     ("glib/tests/utils.c"
-                      ("/utils/find-program"))
-
-                     ;; This fails because "glib/tests/echo-script" cannot be
-                     ;; found.
-                     ("glib/tests/spawn-singlethread.c"
-                      ("/gthread/spawn-script"))
-
-                     ("glib/tests/timer.c"
-                      (;; fails if compiler optimizations are enabled, which they
-                       ;; are by default.
-                       "/timer/stop"))
-
-                     ("gio/tests/gapplication.c"
-                      (;; XXX: proven to be unreliable.  See:
-                       ;;  <https://bugs.debian.org/756273>
-                       ;;  <http://bugs.gnu.org/18445>
-                       "/gapplication/quit"
-
-                       ;; XXX: fails randomly for unknown reason. See:
-                       ;;  <https://lists.gnu.org/archive/html/guix-devel/2016-04/msg00215.html>
-                       "/gapplication/local-actions"))
-
-                     ("gio/tests/contenttype.c"
-                      (;; XXX: requires shared-mime-info.
-                       "/contenttype/guess"
-                       "/contenttype/guess_svg_from_data"
-                       "/contenttype/subtype"
-                       "/contenttype/list"
-                       "/contenttype/icon"
-                       "/contenttype/symbolic-icon"
-                       "/contenttype/tree"))
-
-                     ("gio/tests/appinfo.c"
-                      (;; XXX: requires update-desktop-database.
-                       "/appinfo/associations"))
-
-                     ("gio/tests/desktop-app-info.c"
-                      (;; XXX: requires update-desktop-database.
-                       "/desktop-app-info/delete"
-                       "/desktop-app-info/default"
-                       "/desktop-app-info/fallback"
-                       "/desktop-app-info/lastused"
-                       "/desktop-app-info/search"))
-
-                     ("gio/tests/gdbus-peer.c"
-                      (;; Requires /etc/machine-id.
-                       "/gdbus/codegen-peer-to-peer"))
-
-                     ("gio/tests/gdbus-address-get-session.c"
-                      (;; Requires /etc/machine-id.
-                       "/gdbus/x11-autolaunch"))
-
-                     ("gio/tests/gsocketclient-slow.c"
-                      (;; These tests tries to resolve "localhost", and fails.
-                       "/socket-client/happy-eyeballs/slow"
-                       "/socket-client/happy-eyeballs/cancellation/delayed"))
-
-                     )))
-              (for-each (lambda (x) (apply disable x)) failing-tests)
-              #t)))
-        (replace 'check
-          (lambda _
-            (setenv "MESON_TESTTHREADS"
-                    (number->string (parallel-job-count)))
-            ;; Do not run tests marked as "flaky".
-            (invoke "meson" "test" "--no-suite" "flaky")))
-        ;; TODO: meson does not permit the bindir to be outside of prefix.
-        ;; See https://github.com/mesonbuild/meson/issues/2561
-        ;; We can remove this once meson is patched.
-        (add-after 'install 'move-executables
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let ((out (assoc-ref outputs "out"))
-                  (bin (assoc-ref outputs "bin")))
-              (mkdir-p bin)
-              (rename-file (string-append out "/bin")
-                           (string-append bin "/bin"))
-              ;; This one is an implementation detail of glib.
-              ;; It is wrong that that's in "/bin" in the first place,
-              ;; but that's what upstream is doing right now.
-              ;; See <https://gitlab.gnome.org/GNOME/glib/issues/1633>.
-              (mkdir (string-append out "/libexec"))
-              (rename-file (string-append bin "/bin/gio-launch-desktop")
-                           (string-append out "/libexec/gio-launch-desktop"))
-              ;; Do not refer to "bindir", which points to "${prefix}/bin".
-              ;; We don't patch "bindir" to point to "$bin/bin", because that
-              ;; would create a reference cycle between the "out" and "bin"
-              ;; outputs.
-              (substitute* (list (string-append out "/lib/pkgconfig/gio-2.0.pc")
-                                 (string-append out "/lib/pkgconfig/glib-2.0.pc"))
-                (("bindir=\\$\\{prefix\\}/bin") "")
-                (("=\\$\\{bindir\\}/") "="))
-              #t))))))
-      ;; TODO: see above for explanation.
-      ;; #:configure-flags (list (string-append "--bindir="
-      ;;                                        (assoc-ref %outputs "bin")
-      ;;                                        "/bin"))
-
-   (native-search-paths
-    ;; This variable is not really "owned" by GLib, but several related
-    ;; packages refer to it: gobject-introspection's tools use it as a search
-    ;; path for .gir files, and it's also a search path for schemas produced
-    ;; by 'glib-compile-schemas'.
-    (list (search-path-specification
-           (variable "XDG_DATA_DIRS")
-           (files '("share")))
-          ;; To load extra gio modules from glib-networking, etc.
-          (search-path-specification
-           (variable "GIO_EXTRA_MODULES")
-           (files '("lib/gio/modules")))))
-   (search-paths native-search-paths)
-   (properties '((hidden? . #t)))
-
-   (synopsis "Thread-safe general utility library; basis of GTK+ and GNOME")
-   (description
-    "GLib provides data structure handling for C, portability wrappers,
-and interfaces for such runtime functionality as an event loop, threads,
-dynamic loading, and an object system.")
-   (home-page "https://developer.gnome.org/glib/")
-   (license license:lgpl2.1+)))
+    (name "glib")
+    (version "2.64.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (string-append "mirror://gnome/sources/"
+                       name "/" (string-take version 4) "/"
+                       name "-" version ".tar.xz"))
+       (sha256
+        (base32 "08pbgiv5m3rica4ydvwvpq5mrxbyswx7l1jzjc2ch52xjabvr77y"))
+       (patches
+        (search-patches "glib-disable-failing-tests.patch"))
+       (modules '((guix build utils)))
+       (snippet
+        '(begin
+           (substitute* "tests/spawn-test.c"
+             (("/bin/sh") "sh"))
+           #t))))
+    (build-system meson-build-system)
+    (outputs '("out" "bin"))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         ;; Python references are not being patched in patch-phase of build,
+         ;; despite using python-wrapper as input. So we patch them manually.
+         (add-after 'unpack 'patch-python-references
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* '("gio/gdbus-2.0/codegen/gdbus-codegen.in"
+                            "glib/gtester-report.in"
+                            "gobject/glib-genmarshal.in"
+                            "gobject/glib-mkenums.in")
+               (("@PYTHON@")
+                (string-append (assoc-ref inputs "python")
+                               "/bin/python"
+                               ,(version-major+minor
+                                 (package-version python)))))
+             #t))
+         (add-before 'check 'pre-check
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             ;; For tests/gdatetime.c.
+             (setenv "TZDIR"
+                     (string-append (assoc-ref inputs "tzdata")
+                                    "/share/zoneinfo"))
+             ;; Some tests want write access there.
+             (setenv "HOME" (getcwd))
+             (setenv "XDG_CACHE_HOME" (getcwd))
+             #t))
+         ;; Meson does not permit the bindir to be outside of prefix.
+         (add-after 'install 'move-bin
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (bin (assoc-ref outputs "bin")))
+               (mkdir-p bin)
+               (rename-file
+                (string-append out "/bin")
+                (string-append bin "/bin"))
+               ;; Do not refer to "bindir", which points to "${prefix}/bin".
+               ;; We don't patch "bindir" to point to "$bin/bin", because that
+               ;; would create a reference cycle between the "out" and "bin"
+               ;; outputs.
+               (substitute*
+                   (list
+                    (string-append out "/lib/pkgconfig/gio-2.0.pc")
+                    (string-append out "/lib/pkgconfig/glib-2.0.pc"))
+                 (("bindir=\\$\\{prefix\\}/bin") "")
+                 (("=\\$\\{bindir\\}/") "="))
+               #t))))))
+    (native-inputs
+     `(("gettext" ,gettext-minimal)
+       ("libintl" ,intltool)
+       ("m4" ,m4)
+       ("perl" ,perl)
+       ("pkg-config" ,pkg-config)
+       ("python-wrapper" ,python-wrapper)
+       ("python" ,python)               ; For 'patch-python-references
+       ("tzdata" ,tzdata-for-tests)
+       ("xmllint" ,libxml2)
+       ("xsltproc" ,libxslt)))
+    (inputs
+     `(("dbus" ,dbus)
+       ("libelf" ,libelf)))
+    (propagated-inputs
+     `(("libffi" ,libffi)
+       ("libselinux" ,libselinux)
+       ("pcre" ,pcre)
+       ("util-linux" ,util-linux "lib")
+       ("zlib" ,zlib)))
+    (native-search-paths
+     ;; This variable is not really "owned" by GLib, but several related
+     ;; packages refer to it: gobject-introspection's tools use it as a search
+     ;; path for .gir files, and it's also a search path for schemas produced
+     ;; by 'glib-compile-schemas'.
+     (list
+      (search-path-specification
+       (variable "XDG_DATA_DIRS")
+       (files '("share")))
+      ;; To load extra gio modules from glib-networking, etc.
+      (search-path-specification
+       (variable "GIO_EXTRA_MODULES")
+       (files '("lib/gio/modules")))))
+    (search-paths native-search-paths)
+    (synopsis "Low-level core library for GNOME projects")
+    (description "GLib provides data structure handling for C, portability
+wrappers, and interfaces for such runtime functionality as an event loop,
+threads, dynamic loading, and an object system.")
+    (home-page "https://wiki.gnome.org/Projects/GLib")
+    (license license:lgpl2.1+)))
 
 (define-public glib-with-documentation
   ;; glib's doc must be built in a separate package since it requires gtk-doc,
diff --git a/gnu/packages/patches/glib-disable-failing-tests.patch b/gnu/packages/patches/glib-disable-failing-tests.patch
new file mode 100644
index 0000000000..3601c42030
--- /dev/null
+++ b/gnu/packages/patches/glib-disable-failing-tests.patch
@@ -0,0 +1,84 @@
+From a2e6783f2278ed32b1e552691ec5d67d6940757e Mon Sep 17 00:00:00 2001
+From: Raghav Gururajan <raghavgururajan@disroot.org>
+Date: Tue, 9 Jun 2020 05:17:53 -0400
+Subject: [PATCH] PATCH: Disable failing tests.
+
+---
+ gio/tests/meson.build  | 19 -------------------
+ glib/tests/meson.build |  2 --
+ 2 files changed, 21 deletions(-)
+
+diff --git a/gio/tests/meson.build b/gio/tests/meson.build
+index c7c3e3035..6e38eb39e 100644
+--- a/gio/tests/meson.build
++++ b/gio/tests/meson.build
+@@ -34,7 +34,6 @@ gio_tests = {
+   'buffered-output-stream' : {},
+   'cancellable' : {},
+   'contexts' : {},
+-  'contenttype' : {},
+   'converter-stream' : {},
+   'credentials' : {},
+   'data-input-stream' : {},
+@@ -78,7 +77,6 @@ gio_tests = {
+   'tls-certificate' : {'extra_sources' : ['gtesttlsbackend.c']},
+   'tls-interaction' : {'extra_sources' : ['gtesttlsbackend.c']},
+   'tls-database' : {'extra_sources' : ['gtesttlsbackend.c']},
+-  'gdbus-address-get-session' : {},
+   'win32-appinfo' : {},
+ }
+ 
+@@ -135,10 +133,6 @@ endif
+ if host_machine.system() != 'windows'
+   gio_tests += {
+     'file' : {},
+-    'gdbus-peer' : {
+-      'dependencies' : [libgdbus_example_objectmanager_dep],
+-      'install_rpath' : installed_tests_execdir
+-    },
+     'gdbus-peer-object-manager' : {},
+     'live-g-file' : {},
+     'socket-address' : {},
+@@ -173,19 +167,6 @@ if host_machine.system() != 'windows'
+     }
+   endif
+ 
+-  # Uninstalled because of the check-for-executable logic in DesktopAppInfo
+-  # unable to find the installed executable
+-  if not glib_have_cocoa
+-    gio_tests += {
+-      'appinfo' : {
+-        'install' : false,
+-      },
+-      'desktop-app-info' : {
+-        'install' : false,
+-      },
+-    }
+-  endif
+-
+   test_extra_programs += {
+     'basic-application' : {},
+     'dbus-launch' : {},
+diff --git a/glib/tests/meson.build b/glib/tests/meson.build
+index 8da477d19..9fa24dd49 100644
+--- a/glib/tests/meson.build
++++ b/glib/tests/meson.build
+@@ -103,7 +103,6 @@ glib_tests = {
+   'utf8-pointer' : {},
+   'utf8-validate' : {},
+   'utf8-misc' : {},
+-  'utils' : {},
+   'unicode' : {},
+   'uri' : {},
+   '1bit-mutex' : {},
+@@ -151,7 +150,6 @@ if host_machine.system() == 'windows'
+ else
+   glib_tests += {
+     'include' : {},
+-    'unix' : {},
+   }
+   if have_rtld_next
+     glib_tests += {
+-- 
+2.26.2
+
diff --git a/gnu/packages/patches/glib-tests-timer.patch b/gnu/packages/patches/glib-tests-timer.patch
deleted file mode 100644
index e37425c0c8..0000000000
--- a/gnu/packages/patches/glib-tests-timer.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-* On i686 floating-point roundoff errors could sometimes cause this check to
-  fail depending on the elapsed microseconds.  Improve rounding by adding a
-  fractional bit.
-
---- glib-2.40.0/glib/tests/timer.c	2014-03-05 08:05:42.000000000 -0600
-+++ glib-2.40.0/glib/tests/timer.c	2014-07-10 16:33:12.746862822 -0500
-@@ -35,7 +35,7 @@
-   elapsed = g_timer_elapsed (timer, &micros);
- 
-   g_assert_cmpfloat (elapsed, <, 1.0);
--  g_assert_cmpuint (micros, ==, ((guint64)(elapsed * 1e6)) % 1000000);
-+  g_assert_cmpuint (micros, ==, ((guint64)(elapsed * 1e6 + 0.5)) % 1000000);
- 
-   g_timer_destroy (timer);
- }
