From 214e559d394491b1376e4cc370f75151117a3f83 Mon Sep 17 00:00:00 2001
From: Alexander Kanavin <alex.kanavin@gmail.com>
Date: Thu, 18 Apr 2019 17:36:11 +0200
Subject: [PATCH] modules/python.py: do not substitute python's install prefix
 with meson's

Not sure why this is being done, but it
a) relies on Python's internal variable substitution which may break in the future
b) shouldn't be necessary as Python's prefix ought to be correct in the first place

Upstream-Status: Pending
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>

---
 mesonbuild/modules/python.py | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mesonbuild/modules/python.py b/mesonbuild/modules/python.py
index 2f0c644..d2aa565 100644
--- a/mesonbuild/modules/python.py
+++ b/mesonbuild/modules/python.py
@@ -251,7 +251,7 @@ INTROSPECT_COMMAND = '''import sysconfig
 import json
 import sys
 
-install_paths = sysconfig.get_paths(scheme='posix_prefix', vars={'base': '', 'platbase': '', 'installed_base': ''})
+install_paths = sysconfig.get_paths(scheme='posix_prefix')
 
 def links_against_libpython():
     from distutils.core import Distribution, Extension
@@ -276,12 +276,11 @@ class PythonInstallation(ExternalProgramHolder):
         ExternalProgramHolder.__init__(self, python, interpreter.subproject)
         self.interpreter = interpreter
         self.subproject = self.interpreter.subproject
-        prefix = self.interpreter.environment.coredata.get_builtin_option('prefix')
         self.variables = info['variables']
         self.paths = info['paths']
         install_paths = info['install_paths']
-        self.platlib_install_path = os.path.join(prefix, install_paths['platlib'][1:])
-        self.purelib_install_path = os.path.join(prefix, install_paths['purelib'][1:])
+        self.platlib_install_path = install_paths['platlib']
+        self.purelib_install_path = install_paths['purelib']
         self.version = info['version']
         self.platform = info['platform']
         self.is_pypy = info['is_pypy']