--- a/setup.py	2020-10-22 16:27:16.000000000 +0200
+++ b/setup.py	2020-12-15 08:43:30.000000000 +0100
@@ -557,7 +557,9 @@
 
         if feature.want("zlib"):
             _dbg("Looking for zlib")
-            if _find_include_file(self, "zlib.h"):
+            if "PYODIDE_PACKAGE_ABI" in os.environ:
+                feature.zlib = "z"
+            elif _find_include_file(self, "zlib.h"):
                 if _find_library_file(self, "z"):
                     feature.zlib = "z"
                 elif sys.platform == "win32" and _find_library_file(self, "zlib"):
@@ -565,7 +567,9 @@
 
         if feature.want("jpeg"):
             _dbg("Looking for jpeg")
-            if _find_include_file(self, "jpeglib.h"):
+            if "PYODIDE_PACKAGE_ABI" in os.environ:
+                feature.jpeg = "jpeg"
+            elif _find_include_file(self, "jpeglib.h"):
                 if _find_library_file(self, "jpeg"):
                     feature.jpeg = "jpeg"
                 elif sys.platform == "win32" and _find_library_file(self, "libjpeg"):
@@ -631,7 +635,9 @@
 
         if feature.want("freetype"):
             _dbg("Looking for freetype")
-            if _find_library_file(self, "freetype"):
+            if "PYODIDE_PACKAGE_ABI" in os.environ:
+                feature.freetype = "freetype"
+            elif _find_library_file(self, "freetype"):
                 # look for freetype2 include files
                 freetype_version = 0
                 for subdir in self.compiler.include_dirs:
@@ -704,7 +710,8 @@
         libs = self.add_imaging_libs.split()
         defs = []
         if feature.jpeg:
-            libs.append(feature.jpeg)
+            if "PYODIDE_PACKAGE_ABI" not in os.environ:
+                libs.append(feature.jpeg)
             defs.append(("HAVE_LIBJPEG", None))
         if feature.jpeg2000:
             libs.append(feature.jpeg2000)