evas: changed hardcoded enables in .conf to enable/disable features based on what's installed

e17/evas/evas.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../evas/evas.conf
-# Copyright (C) 2006 The OpenSDE Project
+# Copyright (C) 2006 - 2010 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2004 Clifford Wolf
 #
@@ -14,9 +14,26 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
-var_append confopt " " "--enable-image-loader-png  --enable-image-loader-jpeg \
---enable-image-loader-eet --enable-image-loader-edb \
---enable-font-loader-eet"
+# image loaders
+for x in libpng:png libjpeg:jpeg librsvg:svg; do
+	if pkginstalled ${x%:*}; then
+		y=enable
+	else
+		y=disable
+	fi
+
+	var_append extraconfopt ' ' "--$y-image-loader-${x#*:}"
+done
+
+# eet
+if pkginstalled eet; then
+	y=enable
+else
+	y=disable
+fi
+for x in image font; do
+	var_append extraconfopt ' ' "--$y-$x-loader-eet"
+done
 
 # enable framebuffer support by default
 var_append confopt " " "--enable-fb"