Tag proj_list_units() as deprecated

1 files changed, 19 insertions, 1 deletions

diff --git a/src/proj.h b/src/proj.h
index 8f48217f..69aae6d8 100644
--- a/src/proj.h
+++ b/src/proj.h
@@ -151,6 +151,24 @@ extern "C" {
 #endif
 #endif
 
+#ifdef PROJ_SUPPRESS_DEPRECATION_MESSAGE
+  #define PROJ_DEPRECATED(decl, msg)            decl
+#elif defined(__has_extension)
+  #if __has_extension(attribute_deprecated_with_message)
+    #define PROJ_DEPRECATED(decl, msg)          decl __attribute__ ((deprecated(msg)))
+  #elif defined(__GNUC__)
+    #define PROJ_DEPRECATED(decl, msg)          decl __attribute__ ((deprecated))
+  #else
+    #define PROJ_DEPRECATED(decl, msg)          decl
+  #endif
+#elif defined(__GNUC__)
+  #define PROJ_DEPRECATED(decl, msg)            decl __attribute__ ((deprecated))
+#elif defined(_MSVC_VER)
+  #define PROJ_DEPRECATED(decl, msg)            __declspec(deprecated(msg)) decl
+#else
+  #define PROJ_DEPRECATED(decl, msg)            decl
+#endif
+
 /* The version numbers should be updated with every release! **/
 #define PROJ_VERSION_MAJOR 7
 #define PROJ_VERSION_MINOR 1
@@ -608,7 +626,7 @@ PJ_INIT_INFO PROJ_DLL proj_init_info(const char *initname);
 /* Get lists of operations, ellipsoids, units and prime meridians. */
 const PJ_OPERATIONS       PROJ_DLL *proj_list_operations(void);
 const PJ_ELLPS            PROJ_DLL *proj_list_ellps(void);
-const PJ_UNITS            PROJ_DLL *proj_list_units(void);
+PROJ_DEPRECATED(const PJ_UNITS            PROJ_DLL *proj_list_units(void), "Deprecated by proj_get_units_from_database");
 const PJ_UNITS            PROJ_DLL *proj_list_angular_units(void);
 const PJ_PRIME_MERIDIANS  PROJ_DLL *proj_list_prime_meridians(void);