Fixed compilation with MSVC.

recipes/zlib/recipe.py

@@ -1,4 +1,5 @@
 
+import os
 import re
 from SCons.Script import *
 
@@ -6,6 +7,18 @@ _REPO_NAME = 'zlib'
 _REPO_URL = 'https://github.com/madler/zlib.git'
 _TAG_PATTERN = re.compile(r'^v([0-9]+)\.([0-9]+)(?:\.([0-9]+))?$')
 
+def _build_lib_name(env: Environment) -> str:
+    if os.name == 'posix':
+        return {
+            'debug': 'zd'
+        }.get(env['BUILD_TYPE'], 'z')
+    elif os.name == 'nt':
+        return {
+            'debug': 'zlibstaticd'
+        }.get(env['BUILD_TYPE'], 'zlibstatic')
+    else:
+        raise Exception('libpng is not supported yet on this OS')
+
 def versions(env: Environment, update: bool = False):
     tags = env.GitTags(repo_name = _REPO_NAME, remote_url = _REPO_URL, force_fetch=update)
     result = []
@@ -25,7 +38,14 @@ def cook(env: Environment, version) -> dict:
     repo = env.GitBranch(repo_name = _REPO_NAME, remote_url = _REPO_URL, git_ref = git_ref)
     checkout_root = repo['checkout_root']
     build_result = env.CMakeProject(project_root=checkout_root)
+    include_dir = os.path.join(build_result['install_dir'], 'include')
+    lib_name = _build_lib_name(env)
+    lib_file = env.FindLib(lib_name, paths=build_result['LIBPATH'])
     return {
-        'CPPPATH': [os.path.join(build_result['install_dir'], 'include')],
-        'LIBS': [env.FindLib('z', paths=build_result['LIBPATH'])]
+        'CPPPATH': [include_dir],
+        'LIBS': [lib_file],
+        'CMAKE_VARS': {
+            'ZLIB_LIBRARY': lib_file,
+            'ZLIB_INCLUDE_DIR': include_dir
+        }
     }