[PATCH] configure.in: use correct directfb-config in version check

The configure script has just checked for the correct directfb-config
script, so also use it for the version check instead of whatever
might be in the path.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 configure.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Index: SDL-1.2.15/configure.in
===================================================================
--- SDL-1.2.15.orig/configure.in
+++ SDL-1.2.15/configure.in
@@ -1276,7 +1276,7 @@
         else
             set -- `echo $DIRECTFB_REQUIRED_VERSION | sed 's/\./ /g'`
             NEED_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
-            set -- `directfb-config --version | sed 's/\./ /g'`
+            set -- `$DIRECTFBCONFIG --version | sed 's/\./ /g'`
             HAVE_VERSION=`expr $1 \* 10000 + $2 \* 100 + $3`
             if test $HAVE_VERSION -ge $NEED_VERSION; then
                 DIRECTFB_CFLAGS=`$DIRECTFBCONFIG --cflags`