diff --git a/bin/meson_get_version.py b/bin/meson_get_version.py
index 9a44aa8fab6..91a7e7030d1 100644
--- a/bin/meson_get_version.py
+++ b/bin/meson_get_version.py
@@ -20,11 +20,16 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+import argparse
 import os
 
 
 def main():
-    filename = os.path.join(os.environ['MESON_SOURCE_ROOT'], 'VERSION')
+    parser = argparse.ArgumentParser()
+    parser.add_argument('version_dir', help="Directory with VERSION file")
+    args = parser.parse_args()
+
+    filename = os.path.join(args.version_dir, 'VERSION')
     with open(filename) as f:
         version = f.read().strip()
     print(version, end='')
diff --git a/meson.build b/meson.build
index 1aebd04e5d7..90a92e5e517 100644
--- a/meson.build
+++ b/meson.build
@@ -22,7 +22,8 @@ project(
   'mesa',
   ['c', 'cpp'],
   version : run_command(
-    [find_program('python3', 'python'), 'bin/meson_get_version.py'],
+    [find_program('python3', 'python'), 'bin/meson_get_version.py',
+     meson.version().version_compare('>= 0.56') ? meson.project_source_root() : meson.source_root()],
     check : true
   ).stdout(),
   license : 'MIT',
@@ -2289,6 +2290,14 @@ gcc_lto_quirk = (cc.get_id() == 'gcc') ? ['-fno-lto'] : []
 devenv = environment()
 
 dir_compiler_nir = join_paths(meson.current_source_dir(), 'src/compiler/nir/')
+if meson.version().version_compare('>= 0.56')
+  dir_source_root = meson.project_source_root()
+else
+  # source_root() returns a source root of the parent project if called from
+  # a subproject, which makes impossible to use Mesa as a meson subproject.
+  dir_source_root = meson.source_root()
+endif
+
 
 subdir('include')
 subdir('bin')
diff --git a/src/amd/vulkan/bvh/meson.build b/src/amd/vulkan/bvh/meson.build
index 8c5eb22d973..16fd7fc5153 100644
--- a/src/amd/vulkan/bvh/meson.build
+++ b/src/amd/vulkan/bvh/meson.build
@@ -28,7 +28,7 @@ bvh_shaders = [
   'converter_leaf.comp',
 ]
 
-bvh_include_dir = meson.source_root() + '/src/amd/vulkan/bvh'
+bvh_include_dir = dir_source_root + '/src/amd/vulkan/bvh'
 
 bvh_includes = files(
   'build_helpers.h',
diff --git a/src/amd/vulkan/radix_sort/shaders/meson.build b/src/amd/vulkan/radix_sort/shaders/meson.build
index 0f9b27edd61..16a81ce1e1a 100644
--- a/src/amd/vulkan/radix_sort/shaders/meson.build
+++ b/src/amd/vulkan/radix_sort/shaders/meson.build
@@ -29,7 +29,7 @@ radix_sort_shaders = [
   'scatter_1_odd.comp'
 ]
 
-shader_include_dir = meson.source_root() + '/src/amd/vulkan/radix_sort/targets/u64'
+shader_include_dir = dir_source_root + '/src/amd/vulkan/radix_sort/targets/u64'
 
 shader_include_files = files(
   'bufref.h',
@@ -37,7 +37,7 @@ shader_include_files = files(
   'prefix.h',
   'push.h',
   'scatter.glsl',
-  meson.source_root() + '/src/amd/vulkan/radix_sort/targets/u64/config.h'
+  dir_source_root + '/src/amd/vulkan/radix_sort/targets/u64/config.h'
 )
 
 radix_sort_spv = []
diff --git a/src/compiler/glsl/tests/meson.build b/src/compiler/glsl/tests/meson.build
index 28bdec8fd17..2204f0478dc 100644
--- a/src/compiler/glsl/tests/meson.build
+++ b/src/compiler/glsl/tests/meson.build
@@ -77,7 +77,7 @@ if meson.has_exe_wrapper()
       join_paths(meson.current_source_dir(), 'warnings_test.py'),
       '--glsl-compiler', glsl_compiler,
       '--test-directory', join_paths(
-        meson.source_root(), 'src', 'compiler', 'glsl', 'tests', 'warnings'
+        dir_source_root, 'src', 'compiler', 'glsl', 'tests', 'warnings'
       ),
     ],
     suite : ['compiler', 'glsl'],
diff --git a/src/freedreno/afuc/meson.build b/src/freedreno/afuc/meson.build
index b779b2dd39f..6d209b587c8 100644
--- a/src/freedreno/afuc/meson.build
+++ b/src/freedreno/afuc/meson.build
@@ -68,7 +68,7 @@ if with_tests
     diff,
     args: ['-u', files('../.gitlab-ci/reference/afuc_test.fw'), asm_fw],
     suite: 'freedreno',
-    workdir: meson.source_root()
+    workdir: dir_source_root
   )
 endif
 
@@ -112,7 +112,7 @@ if cc.sizeof('size_t') > 4
       diff,
       args: ['-u', files('../.gitlab-ci/reference/afuc_test.asm'), disasm_fw],
       suite: 'freedreno',
-      workdir: meson.source_root()
+      workdir: dir_source_root
     )
   endif
 endif
diff --git a/src/freedreno/decode/meson.build b/src/freedreno/decode/meson.build
index fd8e3813dc4..a34ca892b53 100644
--- a/src/freedreno/decode/meson.build
+++ b/src/freedreno/decode/meson.build
@@ -146,7 +146,7 @@ if dep_lua.found() and dep_libarchive.found()
         diff,
         args: ['-u', files('../.gitlab-ci/reference/' + name + '.log'), log],
         suite: 'freedreno',
-        workdir: meson.source_root()
+        workdir: dir_source_root
       )
 
     endforeach
@@ -186,7 +186,7 @@ if with_tests
     diff,
     args: ['-u', files('../.gitlab-ci/reference/crash.log'), crashdec_output],
     suite: 'freedreno',
-    workdir: meson.source_root()
+    workdir: dir_source_root
   )
 endif
 
diff --git a/src/freedreno/meson.build b/src/freedreno/meson.build
index f24221e7355..5feab386007 100644
--- a/src/freedreno/meson.build
+++ b/src/freedreno/meson.build
@@ -21,7 +21,7 @@
 inc_freedreno = include_directories(['.', './registers', './registers/adreno', './common'])
 inc_freedreno_rnn = include_directories('rnn')
 
-rnn_src_path = meson.source_root() + '/src/freedreno/registers'
+rnn_src_path = dir_source_root + '/src/freedreno/registers'
 rnn_install_path = get_option('datadir') + '/freedreno/registers'
 rnn_path = rnn_src_path + ':' + get_option('prefix') + '/' + rnn_install_path
 
diff --git a/src/freedreno/vulkan/meson.build b/src/freedreno/vulkan/meson.build
index 6accd3dc040..2f2a176b04f 100644
--- a/src/freedreno/vulkan/meson.build
+++ b/src/freedreno/vulkan/meson.build
@@ -82,7 +82,7 @@ tu_tracepoints = custom_target(
   output: ['tu_tracepoints.c', 'tu_tracepoints.h', 'tu_tracepoints_perfetto.h'],
   command: [
     prog_python, '@INPUT@',
-    '-p', join_paths(meson.source_root(), 'src/util/perf/'),
+    '-p', join_paths(dir_source_root, 'src/util/perf/'),
     '--utrace-src', '@OUTPUT0@',
     '--utrace-hdr', '@OUTPUT1@',
     '--perfetto-hdr', '@OUTPUT2@',
diff --git a/src/gallium/auxiliary/meson.build b/src/gallium/auxiliary/meson.build
index ee623962a4b..63a2a912092 100644
--- a/src/gallium/auxiliary/meson.build
+++ b/src/gallium/auxiliary/meson.build
@@ -467,7 +467,7 @@ files_libgallium += custom_target(
   output: 'u_tracepoints.c',
   command: [
     prog_python, '@INPUT@',
-    '-p', join_paths(meson.source_root(), 'src/util/perf/'),
+    '-p', join_paths(dir_source_root, 'src/util/perf/'),
     '-C', '@OUTPUT@',
   ],
   depend_files: u_trace_py,
@@ -479,7 +479,7 @@ files_u_tracepoints = custom_target(
   output: 'u_tracepoints.h',
   command: [
     prog_python, '@INPUT@',
-    '-p', join_paths(meson.source_root(), 'src/util/perf/'),
+    '-p', join_paths(dir_source_root, 'src/util/perf/'),
     '-H', '@OUTPUT@',
   ],
   depend_files: u_trace_py,
diff --git a/src/gallium/drivers/freedreno/meson.build b/src/gallium/drivers/freedreno/meson.build
index baddc0ae09f..9dc2cdbb885 100644
--- a/src/gallium/drivers/freedreno/meson.build
+++ b/src/gallium/drivers/freedreno/meson.build
@@ -225,7 +225,7 @@ freedreno_tracepoints = custom_target(
   output: ['freedreno_tracepoints.c', 'freedreno_tracepoints.h'],
   command: [
     prog_python, '@INPUT@',
-    '-p', join_paths(meson.source_root(), 'src/util/perf/'),
+    '-p', join_paths(dir_source_root, 'src/util/perf/'),
     '-C', '@OUTPUT0@',
     '-H', '@OUTPUT1@',
   ],
diff --git a/src/gallium/drivers/zink/meson.build b/src/gallium/drivers/zink/meson.build
index 04d4bee10c7..f7fc960df6d 100644
--- a/src/gallium/drivers/zink/meson.build
+++ b/src/gallium/drivers/zink/meson.build
@@ -49,7 +49,7 @@ zink_device_info = custom_target(
   input : ['zink_device_info.py'],
   output : ['zink_device_info.h', 'zink_device_info.c'],
   command : [
-    prog_python, '@INPUT@', '@OUTPUT@', join_paths(meson.source_root(), 'src/vulkan/registry/vk.xml')
+    prog_python, '@INPUT@', '@OUTPUT@', join_paths(dir_source_root, 'src/vulkan/registry/vk.xml')
   ]
 )
 
@@ -58,7 +58,7 @@ zink_instance = custom_target(
   input : ['zink_instance.py'],
   output : ['zink_instance.h', 'zink_instance.c'],
   command : [
-    prog_python, '@INPUT@', '@OUTPUT@', join_paths(meson.source_root(), 'src/vulkan/registry/vk.xml')
+    prog_python, '@INPUT@', '@OUTPUT@', join_paths(dir_source_root, 'src/vulkan/registry/vk.xml')
   ]
 )
 
diff --git a/src/intel/common/meson.build b/src/intel/common/meson.build
index f3fd0f6fa26..41c6f69f50e 100644
--- a/src/intel/common/meson.build
+++ b/src/intel/common/meson.build
@@ -93,7 +93,7 @@ if with_tests and not with_platform_android
     depend_files: gen_pack_header_deps
   )
 
-  genxml_path = join_paths(meson.source_root(),
+  genxml_path = join_paths(dir_source_root,
                            '@0@'.format(gentest_xml[0]))
 
   test(
diff --git a/src/intel/ds/meson.build b/src/intel/ds/meson.build
index 066b3ed8588..6a6719cb83d 100644
--- a/src/intel/ds/meson.build
+++ b/src/intel/ds/meson.build
@@ -11,7 +11,7 @@ intel_tracepoint_files = custom_target(
             'intel_tracepoints.c'],
   command : [
     prog_python, '@INPUT@',
-    '-p', join_paths(meson.source_root(), 'src/util/perf/'),
+    '-p', join_paths(dir_source_root, 'src/util/perf/'),
     '--utrace-hdr', '@OUTPUT0@',
     '--perfetto-hdr', '@OUTPUT1@',
     '--utrace-src', '@OUTPUT2@',