Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
glib2-devel
glib2-devel(x86-64)
pkgconfig(gio-2.0)
pkgconfig(gio-unix-2.0)
pkgconfig(glib-2.0)
pkgconfig(gmodule-2.0)
pkgconfig(gmodule-export-2.0)
pkgconfig(gmodule-no-export-2.0)
pkgconfig(gobject-2.0)
pkgconfig(gthread-2.0)

Requires :

libc.so.6()(64bit)
glib2(x86-64) = 2.42.2-5.el7
libffi.so.6()(64bit)
rtld(GNU_HASH)
libelf.so.1(ELFUTILS_1.0)(64bit)
/usr/bin/perl
libgio-2.0.so.0()(64bit)
libresolv.so.2()(64bit)
pkgconfig(gmodule-no-export-2.0)
perl(warnings)
/usr/bin/python
rpmlib(PayloadIsXz) <= 5.2-1
libelf.so.1(ELFUTILS_1.5)(64bit)
libdl.so.2()(64bit)
libgthread-2.0.so.0()(64bit)
libgobject-2.0.so.0()(64bit)
libgmodule-2.0.so.0()(64bit)
pkgconfig(glib-2.0)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
/bin/sh
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libpthread.so.0(GLIBC_2.2.5)(64bit)
libpthread.so.0()(64bit)
perl(File::Basename)
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
pkgconfig(gio-2.0)
rpmlib(PartialHardlinkSets) <= 4.0.4-1
libc.so.6(GLIBC_2.4)(64bit)
/usr/bin/pkg-config
libglib-2.0.so.0()(64bit)
libselinux.so.1()(64bit)
pkgconfig(gobject-2.0)
perl(Safe)
libelf.so.1()(64bit)
libz.so.1()(64bit)

Content of RPM :
/usr/bin/gdbus-codegen
/usr/bin/glib-compile-resources
/usr/bin/glib-genmarshal
/usr/bin/glib-gettextize
/usr/bin/glib-mkenums
/usr/bin/gobject-query
/usr/bin/gresource
/usr/bin/gtester
/usr/bin/gtester-report
/usr/include/gio-unix-2.0
/usr/include/gio-unix-2.0/gio
/usr/include/gio-unix-2.0/gio/gdesktopappinfo.h
/usr/include/gio-unix-2.0/gio/gfiledescriptorbased.h
/usr/include/gio-unix-2.0/gio/gunixconnection.h
/usr/include/gio-unix-2.0/gio/gunixcredentialsmessage.h
/usr/include/gio-unix-2.0/gio/gunixfdlist.h
/usr/include/gio-unix-2.0/gio/gunixfdmessage.h
/usr/include/gio-unix-2.0/gio/gunixinputstream.h
/usr/include/gio-unix-2.0/gio/gunixmounts.h
/usr/include/gio-unix-2.0/gio/gunixoutputstream.h
/usr/include/gio-unix-2.0/gio/gunixsocketaddress.h
/usr/include/glib-2.0
/usr/include/glib-2.0/gio
/usr/include/glib-2.0/gio/gaction.h
/usr/include/glib-2.0/gio/gactiongroup.h
/usr/include/glib-2.0/gio/gactiongroupexporter.h
/usr/include/glib-2.0/gio/gactionmap.h
/usr/include/glib-2.0/gio/gappinfo.h
/usr/include/glib-2.0/gio/gapplication.h
/usr/include/glib-2.0/gio/gapplicationcommandline.h
There is 310 files more in these RPM.