[PATCH:luit] Warn if configure does not find Xlib, but don't link against it.

[Alan Coopersmith]

luit doesn't #include any Xlib headers or call any Xlib functions,
just attempts to read Xlib's locale.aliases files if it can find it.

Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
---
 configure.ac |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/configure.ac b/configure.ac
index 1458971..4004c8b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,7 +52,11 @@ AC_ARG_WITH(localealiasfile,
 AC_SUBST([LOCALEALIASFILE])
 
 # Checks for pkg-config packages
-PKG_CHECK_MODULES(LUIT, x11 fontenc)
+PKG_CHECK_MODULES(LUIT, fontenc)
+
+# We don't link against libX11, just use its locale.alias data file
+PKG_CHECK_EXISTS(x11, [],
+	[AC_MSG_WARN([libX11 not found.  luit may not be able to find locale aliases without it.])])
 
 case $host_os in
     # darwin has poll() but can't be used to poll character devices (atleast through SnowLeopard)
-- 
1.5.6.5