configure: print iconv selection explanation

diff --git a/configure b/configure
index 1004b79f954d6f07a2d12ed53ca0ad4513f349e4..1e3cc28df140c69f341e68a8248f752b67fa05dc 100755 (executable)
--- a/configure
+++ b/configure
@@ -269,6 +269,12 @@ int test(void)
 }
 ' -liconv
 
+if enabled libiconv; then
+  printf "    ^ using external iconv library\n"
+else
+  printf "    ^ using build-in glibc iconv routines\n"
+fi
+
 if enabled_or_auto dvben50221; then
   check_cc_snippet libdvben50221 '
   #include <libdvben50221/en50221_session.h>