[libdazzle] build: add 3.38 version macros

[Christian Hergert <chergert src gnome org>]

commit d7ebb16cd9f1eb3c3647cff4c29af45da2f2069d
Author: Christian Hergert <chergert redhat com>
Date:   Fri May 1 15:02:54 2020 -0700

    build: add 3.38 version macros

 src/dzl-version-macros.h | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/src/dzl-version-macros.h b/src/dzl-version-macros.h
index 166036c..5675d54 100644
--- a/src/dzl-version-macros.h
+++ b/src/dzl-version-macros.h
@@ -46,6 +46,7 @@
 #define DZL_VERSION_3_32 (G_ENCODE_VERSION (3, 32))
 #define DZL_VERSION_3_34 (G_ENCODE_VERSION (3, 34))
 #define DZL_VERSION_3_36 (G_ENCODE_VERSION (3, 36))
+#define DZL_VERSION_3_38 (G_ENCODE_VERSION (3, 38))
 
 #if (DZL_MINOR_VERSION == 99)
 # define DZL_VERSION_CUR_STABLE (G_ENCODE_VERSION (DZL_MAJOR_VERSION + 1, 0))
@@ -180,4 +181,10 @@
 # define DZL_AVAILABLE_IN_3_36                 _DZL_EXTERN
 #endif
 
+#if DZL_VERSION_MAX_ALLOWED < DZL_VERSION_3_38
+# define DZL_AVAILABLE_IN_3_38                 DZL_UNAVAILABLE(3, 38)
+#else
+# define DZL_AVAILABLE_IN_3_38                 _DZL_EXTERN
+#endif
+
 #endif /* DZL_VERSION_MACROS_H */