More recipes (libjpeg, libz, imagemagick).

recipes/libpng/recipe.py

@@ -2,11 +2,12 @@
 from SCons.Script import *
 
 def cook(env: Environment, git_ref = 'master') -> dict:
+    lib_z = env.Cook('zlib')
     repo = env.Cook('GitBranch', repo_name = 'libpng', remote_url = 'https://git.code.sf.net/p/libpng/code.git', git_ref = git_ref)
     checkout_root = repo['checkout_root']
     build_result = env.Cook('AutotoolsProject', checkout_root)
     return {
-        'LIBPATH': build_result['LIBPATH'],
         'CPPPATH': build_result['CPPPATH'],
-        'LIBS': ['png']
+        'LIBS': [env.FindLib('png16', paths=build_result['LIBPATH'])],
+        'DEPENDENCIES': [lib_z]
     }