Alexandre Julliard : configure: Avoid printing empty warning lines.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 237d7891ef17d417b70e096d2d9f0eaebdb19ca7
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=237d7891ef17d417b70e096d2d9f0eaebdb19ca7

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Tue Mar  4 14:40:39 2014 +0100

configure: Avoid printing empty warning lines.

---

 aclocal.m4 |    4 ++--
 configure  |    8 ++++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 8274b89..3d43721 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -782,13 +782,13 @@ if test "x$wine_notices != "x; then
     IFS="|"
     for msg in $wine_notices; do
         IFS="$ac_save_IFS"
-        AS_VAR_SET_IF([msg],[AC_MSG_NOTICE([$msg])])
+        AS_VAR_IF([msg],[],,[AC_MSG_NOTICE([$msg])])
     done
 fi
 IFS="|"
 for msg in $wine_warnings; do
     IFS="$ac_save_IFS"
-    AS_VAR_SET_IF([msg],[echo >&2
+    AS_VAR_IF([msg],[],,[echo >&2
         AC_MSG_WARN([$msg])])
 done
 IFS="$ac_save_IFS"])
diff --git a/configure b/configure
index dcd8581..56ddd71 100755
--- a/configure
+++ b/configure
@@ -18907,7 +18907,9 @@ if test "x$wine_notices != "x; then
     IFS="|"
     for msg in $wine_notices; do
         IFS="$ac_save_IFS"
-        if ${msg+:} false; then :
+        if ${msg:+false} :; then :
+
+else
   { $as_echo "$as_me:${as_lineno-$LINENO}: $msg" >&5
 $as_echo "$as_me: $msg" >&6;}
 fi
@@ -18916,7 +18918,9 @@ fi
 IFS="|"
 for msg in $wine_warnings; do
     IFS="$ac_save_IFS"
-    if ${msg+:} false; then :
+    if ${msg:+false} :; then :
+
+else
   echo >&2
         { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $msg" >&5
 $as_echo "$as_me: WARNING: $msg" >&2;}