libmm-glib,common-helpers: fix build with glib 2.56
The support of autoptr for GEnumClass and GFlagsClass was introduced in glib 2.58. To keep compatibility with glib 2.56, declare the autoptr cleanup functions.
Fixes #397 (closed)
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The support of autoptr for GEnumClass and GFlagsClass was introduced in glib 2.58. To keep compatibility with glib 2.56, declare the autoptr cleanup functions.
Fixes #397 (closed)