build: Specifify glib versions

This avoids deprecation warnings due to GTimeVal used in
libebook-contacts.h

See https://tecnocode.co.uk/2019/08/24/gtimeval-deprecation-in-glib-2-61-2/

It's already fixed in newer eds so we can drop
this once we move to a newer stack.

meson.build

@@ -58,6 +58,11 @@ config_data.set_quoted('PACKAGE_URL', calls_homepage)
 config_data.set_quoted('PACKAGE_VERSION', calls_version)
 config_data.set('PACKAGE_URL_RAW', calls_homepage)
 
+add_project_arguments([
+ '-DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_58',
+ '-DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_60',
+], language: 'c')
+
 subdir('po')
 subdir('src')
 subdir('plugins')