diff --git a/mesonbuild/backend/backends.py b/mesonbuild/backend/backends.py
index 80cf0ee63..efc5bffa5 100644
--- a/mesonbuild/backend/backends.py
+++ b/mesonbuild/backend/backends.py
@@ -20,7 +20,8 @@ from .. import mlog
 from .. import compilers
 import json
 import subprocess
-from ..mesonlib import MesonException, get_compiler_for_source, classify_unity_sources
+from ..mesonlib import MesonException, get_meson_script
+from ..mesonlib import get_compiler_for_source, classify_unity_sources
 from ..compilers import CompilerArgs
 
 class CleanTrees:
@@ -33,7 +34,7 @@ class CleanTrees:
         self.trees = trees
 
 class InstallData:
-    def __init__(self, source_dir, build_dir, prefix, strip_bin):
+    def __init__(self, source_dir, build_dir, prefix, strip_bin, mesonintrospect):
         self.source_dir = source_dir
         self.build_dir = build_dir
         self.prefix = prefix
@@ -46,6 +47,7 @@ class InstallData:
         self.po = []
         self.install_scripts = []
         self.install_subdirs = []
+        self.mesonintrospect = mesonintrospect
 
 class ExecutableSerialisation:
     def __init__(self, name, fname, cmd_args, env, is_cross, exe_wrapper,
@@ -714,7 +716,7 @@ class Backend:
     def run_postconf_scripts(self):
         env = {'MESON_SOURCE_ROOT': self.environment.get_source_dir(),
                'MESON_BUILD_ROOT': self.environment.get_build_dir(),
-               }
+               'MESONINTROSPECT': get_meson_script(self.environment, 'mesonintrospect')}
         child_env = os.environ.copy()
         child_env.update(env)
 
diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py
index 31439707c..5a9462fa0 100644
--- a/mesonbuild/backend/ninjabackend.py
+++ b/mesonbuild/backend/ninjabackend.py
@@ -20,7 +20,8 @@ from .. import mlog
 from .. import dependencies
 from .. import compilers
 from ..compilers import CompilerArgs
-from ..mesonlib import File, MesonException, get_compiler_for_source, Popen_safe
+from ..mesonlib import File, MesonException
+from ..mesonlib import get_meson_script, get_compiler_for_source, Popen_safe
 from .backends import CleanTrees, InstallData
 from ..build import InvalidArguments
 import os, sys, pickle, re
@@ -515,7 +516,7 @@ int dummy;
         self.processed_targets[target.name + target.type_suffix()] = True
 
     def generate_run_target(self, target, outfile):
-        runnerscript = [sys.executable, self.environment.get_build_command(), '--internal', 'commandrunner']
+        cmd = [sys.executable, self.environment.get_build_command(), '--internal', 'commandrunner']
         deps = self.unwrap_dep_list(target)
         arg_strings = []
         for i in target.args:
@@ -531,7 +532,10 @@ int dummy;
             else:
                 raise AssertionError('Unreachable code in generate_run_target: ' + str(i))
         elem = NinjaBuildElement(self.all_outputs, target.name, 'CUSTOM_COMMAND', [])
-        cmd = runnerscript + [self.environment.get_source_dir(), self.environment.get_build_dir(), target.subdir]
+        cmd += [self.environment.get_source_dir(),
+                self.environment.get_build_dir(),
+                target.subdir,
+                get_meson_script(self.environment, 'mesonintrospect')]
         texe = target.command
         try:
             texe = texe.held_object
@@ -608,7 +612,8 @@ int dummy;
         d = InstallData(self.environment.get_source_dir(),
                         self.environment.get_build_dir(),
                         self.environment.get_prefix(),
-                        strip_bin)
+                        strip_bin,
+                        get_meson_script(self.environment, 'mesonintrospect'))
         elem = NinjaBuildElement(self.all_outputs, 'install', 'CUSTOM_COMMAND', 'PHONY')
         elem.add_dep('all')
         elem.add_item('DESC', 'Installing files.')
@@ -729,9 +734,7 @@ int dummy;
 
     def generate_tests(self, outfile):
         self.serialise_tests()
-        meson_exe = self.environment.get_build_command()
-        (base, ext) = os.path.splitext(meson_exe)
-        test_exe = base + 'test' + ext
+        test_exe = get_meson_script(self.environment, 'mesontest')
         cmd = [sys.executable, test_exe, '--no-rebuild']
         if not self.environment.coredata.get_builtin_option('stdsplit'):
             cmd += ['--no-stdsplit']
diff --git a/mesonbuild/backend/vs2010backend.py b/mesonbuild/backend/vs2010backend.py
index 7afbc0d17..139360c57 100644
--- a/mesonbuild/backend/vs2010backend.py
+++ b/mesonbuild/backend/vs2010backend.py
@@ -24,7 +24,7 @@ from .. import mlog
 from .. import compilers
 from ..build import BuildTarget
 from ..compilers import CompilerArgs
-from ..mesonlib import MesonException, File
+from ..mesonlib import MesonException, File, get_meson_script
 from ..environment import Environment
 
 def autodetect_vs_version(build):
@@ -409,8 +409,10 @@ class Vs2010Backend(backends.Backend):
         customstep = ET.SubElement(action, 'PostBuildEvent')
         cmd_raw = [target.command] + target.args
         cmd = [sys.executable, os.path.join(self.environment.get_script_dir(), 'commandrunner.py'),
-               self.environment.get_build_dir(), self.environment.get_source_dir(),
-               self.get_target_dir(target)]
+               self.environment.get_build_dir(),
+               self.environment.get_source_dir(),
+               self.get_target_dir(target),
+               get_meson_script(self.environment, 'mesonintrospect')]
         for i in cmd_raw:
             if isinstance(i, build.BuildTarget):
                 cmd.append(os.path.join(self.environment.get_build_dir(), self.get_target_filename(i)))
@@ -1164,11 +1166,8 @@ if %%errorlevel%% neq 0 goto :VCEnd'''
         postbuild = ET.SubElement(action, 'PostBuildEvent')
         ET.SubElement(postbuild, 'Message')
         # FIXME: No benchmarks?
-        meson_py = self.environment.get_build_command()
-        (base, ext) = os.path.splitext(meson_py)
-        mesontest_py = base + 'test' + ext
         test_command = [sys.executable,
-                        mesontest_py,
+                        get_meson_script(self.environment, 'mesontest'),
                         '--no-rebuild']
         if not self.environment.coredata.get_builtin_option('stdsplit'):
             test_command += ['--no-stdsplit']
diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index d1ac56994..8c8000cc5 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -22,7 +22,7 @@ from . import optinterpreter
 from . import compilers
 from .wrap import wrap, WrapMode
 from . import mesonlib
-from .mesonlib import FileMode, Popen_safe
+from .mesonlib import FileMode, Popen_safe, get_meson_script
 from .dependencies import InternalDependency, Dependency
 from .interpreterbase import InterpreterBase
 from .interpreterbase import check_stringlist, noPosargs, noKwargs, stringArgs
@@ -72,20 +72,21 @@ class TryRunResultHolder(InterpreterObject):
 
 class RunProcess(InterpreterObject):
 
-    def __init__(self, command_array, source_dir, build_dir, subdir, in_builddir=False):
+    def __init__(self, command_array, source_dir, build_dir, subdir, mesonintrospect, in_builddir=False):
         super().__init__()
-        pc, self.stdout, self.stderr = self.run_command(command_array, source_dir, build_dir, subdir, in_builddir)
+        pc, self.stdout, self.stderr = self.run_command(command_array, source_dir, build_dir, subdir, mesonintrospect, in_builddir)
         self.returncode = pc.returncode
         self.methods.update({'returncode': self.returncode_method,
                              'stdout': self.stdout_method,
                              'stderr': self.stderr_method,
                              })
 
-    def run_command(self, command_array, source_dir, build_dir, subdir, in_builddir):
+    def run_command(self, command_array, source_dir, build_dir, subdir, mesonintrospect, in_builddir):
         cmd_name = command_array[0]
         env = {'MESON_SOURCE_ROOT': source_dir,
                'MESON_BUILD_ROOT': build_dir,
-               'MESON_SUBDIR': subdir}
+               'MESON_SUBDIR': subdir,
+               'MESONINTROSPECT': mesonintrospect}
         if in_builddir:
             cwd = os.path.join(build_dir, subdir)
         else:
@@ -1490,8 +1491,8 @@ class Interpreter(InterpreterBase):
         in_builddir = kwargs.get('in_builddir', False)
         if not isinstance(in_builddir, bool):
             raise InterpreterException('in_builddir must be boolean.')
-        return RunProcess(args, self.environment.source_dir, self.environment.build_dir,
-                          self.subdir, in_builddir)
+        return RunProcess(args, self.environment.source_dir, self.environment.build_dir, self.subdir,
+                          get_meson_script(self.environment, 'mesonintrospect'), in_builddir)
 
     @stringArgs
     def func_gettext(self, nodes, args, kwargs):
diff --git a/mesonbuild/mesonlib.py b/mesonbuild/mesonlib.py
index 291eb68fc..a2ab4843a 100644
--- a/mesonbuild/mesonlib.py
+++ b/mesonbuild/mesonlib.py
@@ -175,6 +175,15 @@ class File:
     def relative_name(self):
         return os.path.join(self.subdir, self.fname)
 
+def get_meson_script(env, script):
+    '''
+    Given the path of `meson.py`/`meson`, get the path of a meson script such
+    as `mesonintrospect` or `mesontest`.
+    '''
+    meson_py = env.get_build_command()
+    (base, ext) = os.path.splitext(meson_py)
+    return os.path.join(os.path.dirname(base), script + ext)
+
 def get_compiler_for_source(compilers, src):
     for comp in compilers:
         if comp.can_compile(src):
diff --git a/mesonbuild/scripts/commandrunner.py b/mesonbuild/scripts/commandrunner.py
index cf2770dc5..87e3b8bf3 100644
--- a/mesonbuild/scripts/commandrunner.py
+++ b/mesonbuild/scripts/commandrunner.py
@@ -17,11 +17,11 @@ what to run, sets up the environment and executes the command."""
 
 import sys, os, subprocess, shutil
 
-def run_command(source_dir, build_dir, subdir, command, arguments):
+def run_command(source_dir, build_dir, subdir, mesonintrospect, command, arguments):
     env = {'MESON_SOURCE_ROOT': source_dir,
            'MESON_BUILD_ROOT': build_dir,
            'MESON_SUBDIR': subdir,
-           }
+           'MESONINTROSPECT': mesonintrospect}
     cwd = os.path.join(source_dir, subdir)
     child_env = os.environ.copy()
     child_env.update(env)
@@ -47,9 +47,10 @@ def run(args):
     src_dir = args[0]
     build_dir = args[1]
     subdir = args[2]
-    command = args[3]
-    arguments = args[4:]
-    pc = run_command(src_dir, build_dir, subdir, command, arguments)
+    mesonintrospect = args[3]
+    command = args[4]
+    arguments = args[5:]
+    pc = run_command(src_dir, build_dir, subdir, mesonintrospect, command, arguments)
     pc.wait()
     return pc.returncode
 
diff --git a/mesonbuild/scripts/meson_install.py b/mesonbuild/scripts/meson_install.py
index e1720322f..2205f1ae0 100644
--- a/mesonbuild/scripts/meson_install.py
+++ b/mesonbuild/scripts/meson_install.py
@@ -183,7 +183,7 @@ def run_install_script(d):
            'MESON_BUILD_ROOT': d.build_dir,
            'MESON_INSTALL_PREFIX': d.prefix,
            'MESON_INSTALL_DESTDIR_PREFIX': d.fullprefix,
-           }
+           'MESONINTROSPECT': d.mesonintrospect}
     child_env = os.environ.copy()
     child_env.update(env)
 
diff --git a/test cases/common/141 mesonintrospect from scripts/check_env.py b/test cases/common/141 mesonintrospect from scripts/check_env.py
new file mode 100644
index 000000000..dc8ad638c
--- /dev/null
+++ b/test cases/common/141 mesonintrospect from scripts/check_env.py	
@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+
+do_print = False
+
+if len(sys.argv) > 1:
+    do_print = bool(sys.argv[1])
+
+if 'MESONINTROSPECT' not in os.environ:
+    raise RuntimeError('MESONINTROSPECT not found')
+
+mesonintrospect = os.environ['MESONINTROSPECT']
+
+if not os.path.isfile(mesonintrospect):
+    raise RuntimeError('{!r} does not exist'.format(mesonintrospect))
+
+if do_print:
+    print(mesonintrospect, end='')
diff --git a/test cases/common/141 mesonintrospect from scripts/meson.build b/test cases/common/141 mesonintrospect from scripts/meson.build
new file mode 100644
index 000000000..f78710b47
--- /dev/null
+++ b/test cases/common/141 mesonintrospect from scripts/meson.build	
@@ -0,0 +1,14 @@
+project('mesonintrospect from scripts', 'c')
+
+python = import('python3').find_python()
+
+ret = run_command(python, ['check_env.py', '1'])
+if ret.returncode() == 0
+  find_program(ret.stdout())
+else
+  message(ret.stdout())
+  message(ret.stderr())
+endif
+
+meson.add_postconf_script('check_env.py')
+meson.add_install_script('check_env.py')