build: really use gettext-0.17

* configure.ac: Correct previous change to use 0.17, not 0.18,
since gettext-0.18 is new enough that it makes building from git
a little too inconvenient.  Spotted by Petr Uzel.

diff --git a/configure.ac b/configure.ac
index 9ae5783..a994d09 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -295,7 +295,7 @@ libraries.)
 fi
 AM_PROG_LIBTOOL
 
-AM_GNU_GETTEXT_VERSION([0.18])
+AM_GNU_GETTEXT_VERSION([0.17])
 AM_GNU_GETTEXT([external])
 if test "$USE_INCLUDED_LIBINTL" = "yes"; then
        AC_MSG_ERROR([