Revert "CONFIGURE: Don't disable the sword25 engine when libpng is not found"

This reverts commit 7543c3ba5fcc914a4031fc8328aacd3d28c7055d.
We depend on libpng for PNG decoding again, thus disable sword25 when libpng
is not available.

1 files changed, 5 insertions, 0 deletions

diff --git a/configure b/configure
index 5ab145c5f4..4b54832294 100755
--- a/configure
+++ b/configure
@@ -3201,6 +3201,11 @@ fi
 define_in_config_if_yes "$_png" 'USE_PNG'
 echo "$_png"
 
+if test `get_engine_build sword25` = yes && test ! "$_png" = yes ; then
+	echo "...disabling Broken Sword 2.5 engine. PNG is required"
+	engine_disable sword25
+fi
+
 #
 # Check for Theora Decoder
 #