Added conf option for build tree layout.

backends.py

@@ -68,7 +68,9 @@ class Backend():
         return filename
 
     def get_target_dir(self, target):
-#        dirname = target.get_subdir()
+        if self.environment.coredata.layout == 'mirror':
+            dirname = target.get_subdir()
+        else:
             dirname = 'meson-out'
         os.makedirs(os.path.join(self.environment.get_build_dir(), dirname), exist_ok=True)
         return dirname

compilers.py

@@ -199,6 +199,8 @@ class CCompiler():
         return []
 
     def get_include_args(self, path):
+        if path == '':
+            path = '.'
         return ['-I' + path]
 
     def get_std_shared_lib_link_args(self):

coredata.py

@@ -29,6 +29,7 @@ builtin_options = {'buildtype': True,
                    'mandir' : True,
                    'localedir' : True,
                    'werror' : True,
+                   'layout' : True,
                   }
 # This class contains all data that must persist over multiple
 # invocations of Meson. It is roughly the same thing as
@@ -55,6 +56,7 @@ class CoreData():
         self.unity = options.unity
         self.coverage = options.coverage
         self.werror = options.werror
+        self.layout = options.layout
         self.user_options = {}
         self.external_args = {} # These are set from "the outside" with e.g. mesonconf
         self.external_link_args = {}
@@ -95,6 +97,8 @@ class CoreData():
             return self.mandir
         if optname == 'localedir':
             return self.localedir
+        if optname == 'layout':
+            return self.layout
         raise RuntimeError('Tried to get unknown builtin option %s' % optname)
 
 def load(filename):

meson.py

@@ -28,6 +28,7 @@ parser = argparse.ArgumentParser()
 
 backendlist = ['ninja', 'vs2010', 'xcode']
 build_types = ['plain', 'debug', 'debugoptimized', 'release']
+layouts = ['mirror', 'flat']
 
 if mesonlib.is_windows():
     def_prefix = 'c:/'
@@ -62,6 +63,8 @@ parser.add_argument('--unity', action='store_true', dest='unity', default=False,
                     help='unity build')
 parser.add_argument('--werror', action='store_true', dest='werror', default=False,\
                     help='Treat warnings as errors')
+parser.add_argument('--layout', choices=layouts, dest='layout', default='mirror',\
+                    help='Build directory layout.')
 parser.add_argument('--cross-file', default=None, dest='cross_file',
                     help='file describing cross compilation environment')
 parser.add_argument('-D', action='append', dest='projectoptions', default=[],

mesonconf.py

@@ -18,7 +18,7 @@ import sys, os
 import pickle
 import argparse
 import coredata, optinterpreter
-from meson import build_types
+from meson import build_types, layouts
 
 parser = argparse.ArgumentParser()
 
@@ -80,6 +80,10 @@ class Conf:
                 if v not in build_types:
                     raise ConfException('Invalid build type %s.' % v)
                 self.coredata.buildtype = v
+            elif k == 'layout':
+                if v not in layouts:
+                    raise ConfException('Invalid layout type %s.' % v)
+                self.coredata.layout = v
             elif k == 'strip':
                 self.coredata.strip = self.tobool(v)
             elif k == 'coverage':

run_tests.py

@@ -172,7 +172,7 @@ def run_test_inprocess(testdir):
     return (returncode, mystdout.getvalue(), mystderr.getvalue())
 
 
-def run_test(testdir, should_succeed):
+def run_test(testdir, extra_args, should_succeed):
     global compile_commands
     mlog.shutdown() # Close the log file because otherwise Windows wets itself.
     shutil.rmtree(test_build_dir)
@@ -182,7 +182,7 @@ def run_test(testdir, should_succeed):
     print('Running test: ' + testdir)
     gen_start = time.time()
     gen_command = [meson_command, '--prefix', '/usr', '--libdir', 'lib', testdir, test_build_dir]\
-        + unity_flags + backend_flags
+        + unity_flags + backend_flags + extra_args
     (returncode, stdo, stde) = run_configure_inprocess(gen_command)
     gen_time = time.time() - gen_start
     if not should_succeed:
@@ -255,7 +255,7 @@ def detect_tests_to_run():
     all_tests.append(('fortran', gather_tests('test cases/fortran'), False if shutil.which('gfortran') else True))
     return all_tests
 
-def run_tests():
+def run_tests(extra_args):
     all_tests = detect_tests_to_run()
     logfile = open('meson-test-run.txt', 'w', encoding="utf_8")
     junit_root = ET.Element('testsuites')
@@ -290,7 +290,7 @@ def run_tests():
                 skipped_tests += 1
             else:
                 ts = time.time()
-                result = run_test(t, name != 'failing')
+                result = run_test(t, extra_args, name != 'failing')
                 te = time.time()
                 conf_time += result.conftime
                 build_time += result.buildtime
@@ -351,6 +351,8 @@ def generate_prebuilt_object():
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description="Run the test suite of Meson.")
+    parser.add_argument('extra_args', nargs='*',
+                   help='arguments that are passed directly to Meson (remember to have -- before these).')
     parser.add_argument('--backend', default=None, dest='backend',
                         choices = backendlist)
     options = parser.parse_args()
@@ -362,7 +364,7 @@ if __name__ == '__main__':
     check_format()
     pbfile = generate_prebuilt_object()
     try:
-        run_tests()
+        run_tests(options.extra_args)
     except StopException:
         pass
     os.unlink(pbfile)