From 94c8a5e7a92cc6dc438293e09ce36360decffa7b Mon Sep 17 00:00:00 2001
From: Jerome Duval <jerome.duval@gmail.com>
Date: Tue, 14 Dec 2021 17:34:48 +0100
Subject: Distutils patch for Haiku


diff --git a/setuptools/_distutils/command/install.py b/setuptools/_distutils/command/install.py
index 13feeb8..caec8f1 100644
--- a/setuptools/_distutils/command/install.py
+++ b/setuptools/_distutils/command/install.py
@@ -43,6 +43,27 @@ INSTALL_SCHEMES = {
         'data'   : '$base',
         },
     'nt': WINDOWS_SCHEME,
+    'haiku': {
+        'purelib': '$base/non-packaged/lib/python$py_version_short/site-packages',
+        'platlib': '$platbase/non-packaged/lib/python$py_version_short/site-packages',
+        'headers': '$base/non-packaged/develop/headers/python$py_version_short/$dist_name',
+        'scripts': '$base/non-packaged/bin',
+        'data'   : '$base/non-packaged',
+        },
+    'haiku_vendor': {
+        'purelib': '$base/lib/python$py_version_short/vendor-packages',
+        'platlib': '$platbase/lib/python$py_version_short/vendor-packages',
+        'headers': '$base/develop/headers/python$py_version_short/$dist_name',
+        'scripts': '$base/bin',
+        'data'   : '$base',
+        },
+    'haiku_home': {
+        'purelib': '$base/lib/python',
+        'platlib': '$base/lib/python',
+        'headers': '$base/develop/headers/python/$dist_name',
+        'scripts': '$base/bin',
+        'data'   : '$base',
+        },
     'pypy': {
         'purelib': '$base/site-packages',
         'platlib': '$base/site-packages',
@@ -78,6 +99,14 @@ if HAS_USER_SITE:
         'data'   : '$userbase',
         }
 
+    INSTALL_SCHEMES['haiku_user'] = {
+        'purelib': '$usersite',
+        'platlib': '$usersite',
+        'headers': '$userbase/develop/headers/python$py_version_short/$dist_name',
+        'scripts': '$userbase/bin',
+        'data'   : '$userbase',
+        }
+
 # The keys to an installation scheme; if any new types of files are to be
 # installed, be sure to add an entry to every installation scheme above,
 # and to SCHEME_KEYS here.
@@ -423,10 +452,16 @@ class install(Command):
                 raise DistutilsPlatformError(
                     "User base directory is not specified")
             self.install_base = self.install_platbase = self.install_userbase
-            self.select_scheme("unix_user")
+            if sys.platform.startswith('haiku'):
+                self.select_scheme("haiku_user")
+            else:
+                self.select_scheme("unix_user")
         elif self.home is not None:
             self.install_base = self.install_platbase = self.home
-            self.select_scheme("unix_home")
+            if sys.platform.startswith('haiku'):
+                self.select_scheme("haiku_home")
+            else:
+                self.select_scheme("unix_home")
         else:
             if self.prefix is None:
                 if self.exec_prefix is not None:
@@ -442,7 +477,13 @@ class install(Command):
 
             self.install_base = self.prefix
             self.install_platbase = self.exec_prefix
-            self.select_scheme("unix_prefix")
+            if sys.platform.startswith('haiku'):
+                if os.environ.get('HAIKU_USE_VENDOR_DIRECTORIES') == '1':
+                    self.select_scheme("haiku_vendor")
+                else:
+                    self.select_scheme("haiku")
+            else:
+                self.select_scheme("unix_prefix")
 
     def finalize_other(self):
         """Finalizes options for non-posix platforms"""
diff --git a/setuptools/_distutils/sysconfig.py b/setuptools/_distutils/sysconfig.py
index 879b698..e9dec4a 100644
--- a/setuptools/_distutils/sysconfig.py
+++ b/setuptools/_distutils/sysconfig.py
@@ -114,7 +114,8 @@ def get_python_inc(plat_specific=0, prefix=None):
                 incdir = os.path.join(get_config_var('srcdir'), 'Include')
                 return os.path.normpath(incdir)
         python_dir = 'python' + get_python_version() + build_flags
-        return os.path.join(prefix, "include", python_dir)
+        inc_dir = "include" if sys.platform != "haiku1" else "develop/headers"
+        return os.path.join(prefix, inc_dir, python_dir)
     elif os.name == "nt":
         if python_build:
             # Include both the include and PC dir to ensure we can find
@@ -156,7 +157,14 @@ def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
         else:
             prefix = plat_specific and EXEC_PREFIX or PREFIX
 
-    if os.name == "posix":
+    if os.name == "posix" and sys.platform.startswith('haiku'):
+        if standard_lib:
+            return os.path.join(prefix,
+                                "lib", "python" + get_python_version())
+        return os.path.join(prefix, "non-packaged",
+                            "lib", "python" + get_python_version(),
+                            "site-packages")
+    elif os.name == "posix":
         if plat_specific or standard_lib:
             # Platform-specific modules (any module from a non-pure-Python
             # module distribution) or standard Python library modules.
-- 
2.30.2