Solaris pkgconfig file changes

Not suitable for upstream

--- a/glib/meson.build	2019-10-31 16:01:22.777037273 -0700
+++ b/glib/meson.build	2019-10-31 16:01:38.923014840 -0700
@@ -440,10 +440,10 @@
   libraries_private : [osx_ldflags, win32_ldflags],
   subdirs : ['glib-2.0'],
   extra_cflags : ['-I${libdir}/glib-2.0/include'] + win32_cflags,
-  variables : ['bindir=' + join_paths('${prefix}', get_option('bindir')),
-               'glib_genmarshal=' + join_paths('${bindir}', 'glib-genmarshal'),
-               'gobject_query=' + join_paths('${bindir}', 'gobject-query'),
-               'glib_mkenums=' + join_paths('${bindir}', 'glib-mkenums')],
+  variables : [
+               'glib_genmarshal=glib-genmarshal',
+               'gobject_query=gobject-query',
+               'glib_mkenums=glib-mkenums'],
   version : glib_version,
   install_dir : glib_pkgconfigreldir,
   filebase : 'glib-2.0',
--- a/gio/meson.build	2020-03-04 11:38:44.071086819 -0800
+++ b/gio/meson.build	2020-03-04 11:39:13.908503397 -0800
@@ -881,14 +881,14 @@
                'schemasdir=' + join_paths('${datadir}', schemas_subdir),
                'bindir=' + join_paths('${prefix}', get_option('bindir')),
                'giomoduledir=' + pkgconfig_giomodulesdir,
-               'gio=' + join_paths('${bindir}', 'gio'),
-               'gio_querymodules=@0@'.format(pkgconfig_multiarch_bindir / 'gio-querymodules'),
-               'glib_compile_schemas=@0@'.format(pkgconfig_multiarch_bindir / 'glib-compile-schemas'),
-               'glib_compile_resources=' + join_paths('${bindir}', 'glib-compile-resources'),
-               'gdbus=' + join_paths('${bindir}', 'gdbus'),
-               'gdbus_codegen=' + join_paths('${bindir}', 'gdbus-codegen'),
-               'gresource=' + join_paths('${bindir}', 'gresource'),
-               'gsettings=' + join_paths('${bindir}', 'gsettings')],
+               'gio=gio',
+               'gio_querymodules=gio-querymodules',
+               'glib_compile_schemas=glib-compile-schemas',
+               'glib_compile_resources=glib-compile-resources',
+               'gdbus=gdbus',
+               'gdbus_codegen=gdbus-codegen',
+               'gresource=gresource',
+               'gsettings=gsettings'],
   version : glib_version,
   install_dir : glib_pkgconfigreldir,
   filebase : 'gio-2.0',
--- a/meson.build	2020-03-04 09:02:32.869174026 -0800
+++ b/meson.build	2020-03-04 09:02:58.419670458 -0800
@@ -1930,7 +1930,7 @@
   glibconfig_conf.set('g_threads_impl_def', 'WIN32')
   glib_conf.set('THREADS_WIN32', 1)
 else
-  thread_dep = dependency('threads')
+  thread_dep = []
   threads_implementation = 'posix'
   pthread_prefix = '''
       #ifndef _GNU_SOURCE