Generate missing pixbuf loaders (#1841)

* Generate missing pixbuf loaders

* Bump pkgrel

mingw-w64-gdk-pixbuf2/PKGBUILD

@@ -6,7 +6,7 @@ _realname=gdk-pixbuf2
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=2.36.0
-pkgrel=1
+pkgrel=2
 pkgdesc="An image loading library (mingw-w64)"
 arch=('any')
 url="http://www.gtk.org"
@@ -50,7 +50,7 @@ build() {
     --enable-shared \
     --enable-introspection \
     --enable-relocations \
-    --with-included-loaders
+    --with-included-loaders=png
   make
 }