[glib2] Update to 2.56.1. Contributes to JB#41420

- drop syslog patch, glib supports structured logging now
- mtab patch could have been applied, but the rationale for inclusion
in the first place is not available with this git repo. Just omitted in
hope of getting rid of it. Upstream by default already moved to libmount,
but that seems to have problems  with Tracker. Enabling commit
(496cd8aac6402) does state that it returns slightly different results,
namely with bind mounts.

rpm/0001-Add-dev-mmcblk-to-the-list-of-devices-to-be-detected.patch

@@ -1,5 +1,5 @@
 diff --git a/gio/gunixvolume.c b/gio/gunixvolume.c
-index 981f703..48ea9fd 100644
+index b54d1fd6e..9cc2c1ad8 100644
 --- a/gio/gunixvolume.c
 +++ b/gio/gunixvolume.c
 @@ -110,7 +110,8 @@ _g_unix_volume_new (GVolumeMonitor  *volume_monitor,

rpm/glib-replace-some-criticals-with-warnings.patch

@@ -1,8 +1,8 @@
 diff --git a/glib/gmain.c b/glib/gmain.c
-index 29ccee0..79e4fa6 100644
+index 227168a0f..850638735 100644
 --- a/glib/gmain.c
 +++ b/glib/gmain.c
-@@ -2281,7 +2281,7 @@ g_source_remove (guint tag)
+@@ -2349,7 +2349,7 @@ g_source_remove (guint tag)
    if (source)
      g_source_destroy (source);
    else

rpm/glib2.spec

@@ -3,7 +3,7 @@ Name:       glib2
 %define keepstatic 1
 
 Summary:    A library of handy utility functions
-Version:    2.48.0
+Version:    2.56.1
 Release:    1
 Group:      System/Libraries
 License:    LGPLv2+
@@ -12,10 +12,8 @@ Source0:    %{name}-%{version}.tar.xz
 Source2:    glib2.sh
 Source3:    glib2.csh
 Source4:    %{name}-rpmlintrc
-Patch1:     glib-syslog-message-handler.patch
-Patch2:     0001-Add-dev-mmcblk-to-the-list-of-devices-to-be-detected.patch
-Patch3:     use-mtab-instead-of-fstab.patch
-Patch4:     glib-replace-some-criticals-with-warnings.patch
+Patch1:     0001-Add-dev-mmcblk-to-the-list-of-devices-to-be-detected.patch
+Patch2:     glib-replace-some-criticals-with-warnings.patch
 Requires(post): /sbin/ldconfig
 Requires(postun): /sbin/ldconfig
 BuildRequires:  pkgconfig(libpcre)
@@ -61,29 +59,23 @@ version 2 of the GLib library.
 %prep
 %setup -q -n %{name}-%{version}/upstream
 
-# glib-syslog-message-handler.patch
-%patch1 -p1
 # 0001-Add-dev-mmcblk-to-the-list-of-devices-to-be-detected.patch
-%patch2 -p1
-# use-mtab-instead-of-fstab.patch
-%patch3 -p1
+%patch1 -p1
 # glib-replace-some-criticals-with-warnings.patch
-%patch4 -p1
+%patch2 -p1
 
 %build
-# >> build pre
 #
 # First, build glib enabled for generating the Profile Guided Optimization
 # metadata
 #
-# << build pre
 %autogen  \
     --enable-static \
-    --with-pcre=system
+    --with-pcre=system \
+    --disable-libmount
 
 make %{?_smp_mflags}
 
-# >> build post
 cd tests/gobject
 
 #
@@ -98,15 +90,11 @@ rm `find -name "*.o"`
 # And now compile again, using the generated profile data
 #
 make %{?_smp_mflags} CFLAGS="$CFLAGS -fprofile-use"
-# << build post
 
 %install
 rm -rf %{buildroot}
-# >> install pre
-# << install pre
 %make_install
 
-# >> install post
 ## glib2.sh and glib2.csh
 mkdir -p %{buildroot}%{_sysconfdir}/profile.d
 install -p -m 644 %{SOURCE2} %{buildroot}%{_sysconfdir}/profile.d
@@ -126,15 +114,13 @@ mv glib20.lang glib2.lang
 %docs_package
 
 %lang_package
-# << install post
 
 %post -p /sbin/ldconfig
 
 %postun -p /sbin/ldconfig
 
 %files
 %defattr(-,root,root,-)
-# >> files
 %doc COPYING
 %{_libdir}/libglib-2.0.so.*
 %{_libdir}/libgthread-2.0.so.*
@@ -151,19 +137,16 @@ mv glib20.lang glib2.lang
 %{_bindir}/glib-compile-resources
 %{_bindir}/gresource
 %{_bindir}/gapplication
+%{_bindir}/gio
 %{_datarootdir}/gettext/its
-# << files
 
 %files static
 %defattr(-,root,root,-)
-# >> files static
 %defattr(-, root, root, -)
 %{_libdir}/lib*.a
-# << files static
 
 %files devel
 %defattr(-,root,root,-)
-# >> files devel
 %defattr(-, root, root, -)
 %{_libdir}/lib*.so
 %{_libdir}/glib-2.0
@@ -178,6 +161,4 @@ mv glib20.lang glib2.lang
 %{_bindir}/gobject-query
 %{_bindir}/gtester
 %{_bindir}/gdbus-codegen
-%{_datadir}/glib-2.0/codegen
 %attr (0755, root, root) %{_bindir}/gtester-report
-# << files devel