Fixed dependency error. Cannot use shared libloadpng

.SRCINFO

@@ -1,9 +1,9 @@
 # Generated by mksrcinfo v8
-# Sun Mar 18 15:33:40 UTC 2018
+# Mon Mar 19 01:22:17 UTC 2018
 pkgbase = aseprite
 	pkgdesc = Create animated sprites and pixel art
 	pkgver = 1.2.7.2
-	pkgrel = 1
+	pkgrel = 2
 	url = http://www.aseprite.org/
 	arch = x86_64
 	arch = i686

PKGBUILD

@@ -5,7 +5,7 @@
 
 pkgname=aseprite
 pkgver=1.2.7.2
-pkgrel=1
+pkgrel=2
 pkgdesc='Create animated sprites and pixel art'
 arch=('x86_64' 'i686')
 url="http://www.aseprite.org/"
@@ -30,7 +30,12 @@ build() {
   mkdir -p build && cd build
 
   # CMake config notes:
-  # Do not build using the shared allegro4. Weird graphical glitches happen when linking to the library from the official repo
+  # Do not build using the shared allegro4. Weird graphical glitches happen
+  # when linking to the library from the official repo.  Also, since loadpng.h
+  # is also distributed in allegro4, using that shared library must also be
+  # disabled since there's no guarantee Arch users might have allegro4
+  # installed.
+
 
   cmake -DUSE_SHARED_PIXMAN=ON \
     -DWITH_WEBP_SUPPORT=ON \
@@ -41,12 +46,12 @@ build() {
     -DUSE_SHARED_HARFBUZZ=ON \
     -DUSE_SHARED_ZLIB=ON \
     -DUSE_SHARED_LIBPNG=ON \
-    -DUSE_SHARED_LIBLOADPNG=ON \
     -DUSE_SHARED_TINYXML=ON \
     -DUSE_SHARED_CMARK=ON \
     -DENABLE_UPDATER=OFF \
     -DUSE_SHARED_FREETYPE=ON \
     -DUSE_SHARED_ALLEGRO4=OFF \
+    -DUSE_SHARED_LIBLOADPNG=OFF \
     -DCMAKE_INSTALL_PREFIX:STRING=/usr ..
 
   make $MAKEFLAGS