add OSMGpsMap to compile options display

Investigation of #18739 pointed out that, while the map view is an
optional feature (depending on the presence of OSMGpsMap), there is no
mention of its status in the Compile Options output when darktable is
started with --version.  This commit addresses that oversight.

Author: ralfbrown

src/common/darktable.c

@@ -788,7 +788,7 @@ char *version = g_strdup_printf(
 #ifdef HAVE_OPENCL
                "  OpenCL                 -> ENABLED\n"
 #else
-               "  OpenCL                 -> DISABLED\n"
+               "  OpenCL                 -> DISABLED - GPU acceleration is NOT available\n"
 #endif
 
 #ifdef USE_LUA
@@ -806,9 +806,15 @@ char *version = g_strdup_printf(
 #ifdef HAVE_GPHOTO2
                "  gPhoto2                -> ENABLED\n"
 #else
-               "  gPhoto2                -> DISABLED\n"
+               "  gPhoto2                -> DISABLED - tethering is NOT available\n"
 #endif
 
+#ifdef HAVE_MAP
+               "  OSMGpsMap              -> ENABLED  - map view is available\n"
+#else
+               "  OSMGpsMap              -> DISABLED - map view is NOT available\n"
+#endif
+               
 #ifdef HAVE_GMIC
                "  GMIC                   -> ENABLED  - Compressed LUTs are supported\n"
 #else