[meson] Use / instead join_paths

We need some of the very recent features of meson, let's use the new features also

docs/meson.build

@@ -50,8 +50,8 @@ endif
 
 gnome.gtkdoc('harfbuzz',
   main_sgml: 'harfbuzz-docs.xml',
-  src_dir: [join_paths(meson.current_source_dir(), '..'),
+  src_dir: [meson.current_source_dir() / '..',
-            join_paths(meson.current_build_dir(), '..'),
+            meson.current_build_dir() / '..',
            ],
   scan_args: ['--deprecated-guards=HB_DISABLE_DEPRECATED',
               '--ignore-decorators=HB_EXTERN',

meson.build

@@ -1,5 +1,5 @@
 project('harfbuzz', 'c', 'cpp',
-  meson_version: '>= 0.47.0',
+  meson_version: '>= 0.53.0',
   default_options : ['cpp_std=c++11'],
   version: '2.6.6')
 

src/meson.build

@@ -285,7 +285,7 @@ custom_target('hb-version.h',
   input: 'hb-version.h.in',
   output: 'hb-version.h',
   command: [find_program('gen-hb-version.py'), meson.project_version(),
-            '@INPUT@', join_paths(meson.current_source_dir(), 'hb-version.h')])
+            '@INPUT@', meson.current_source_dir() / 'hb-version.h'])
 
 ragel = find_program('ragel', required: false)
 if not ragel.found()
@@ -305,7 +305,7 @@ custom_target('harfbuzz.cc',
   build_by_default: true,
   output: 'harfbuzz.cc',
   command: [find_program('gen-harfbuzzcc.py'),
-            join_paths(meson.source_root(), '@OUTPUT@')] +
+            meson.source_root() / '@OUTPUT@'] +
             hb_base_sources + hb_glib_sources + hb_ft_sources +
             hb_graphite2_sources + hb_uniscribe_sources + hb_gdi_sources +
             hb_directwrite_sources + hb_coretext_sources)
@@ -588,7 +588,7 @@ cmake_config.set('have_gobject', have_gobject ? 'true' : 'false')
 configure_file(input: 'harfbuzz-config.cmake.in',
   output: 'harfbuzz-config.cmake',
   configuration: cmake_config,
-  install_dir: join_paths(get_option('libdir'), 'cmake', 'harfbuzz'))
+  install_dir: get_option('libdir') / 'cmake' / 'harfbuzz')
 
 if have_gobject
   gnome = import('gnome')
@@ -624,7 +624,7 @@ if have_gobject
     output: 'hb-gobject-enums.h',
     command: [python3, files('fix_get_types.py')[0], '@INPUT@', '@OUTPUT@'],
     install: true,
-    install_dir: join_paths(get_option('prefix'), get_option('includedir'), meson.project_name()),
+    install_dir: get_option('prefix') / get_option('includedir') / meson.project_name(),
   )
 
   hb_gobject_sources += [enum_c]

test/fuzzing/meson.build

@@ -27,7 +27,7 @@ test('shape_fuzzer', find_program('run-shape-fuzzer-tests.py'),
     hb_shape_fuzzer_exe,
   ],
   depends: [hb_shape_fuzzer_exe, libharfbuzz, libharfbuzz_subset],
-  workdir: join_paths(meson.current_build_dir(), '..', '..'),
+  workdir: meson.current_build_dir() / '..' / '..',
   env: env)
 
 test('subset_fuzzer', find_program('run-subset-fuzzer-tests.py'),
@@ -37,12 +37,12 @@ test('subset_fuzzer', find_program('run-subset-fuzzer-tests.py'),
   # as the tests are ran concurrently let's raise acceptable time here
   # ideally better to break and let meson handles them in parallel
   timeout: 300,
-  workdir: join_paths(meson.current_build_dir(), '..', '..'),
+  workdir: meson.current_build_dir() / '..' / '..',
   env: env)
 
 test('draw_fuzzer', find_program('run-draw-fuzzer-tests.py'),
   args: [
     hb_draw_fuzzer_exe,
   ],
-  workdir: join_paths(meson.current_build_dir(), '..', '..'),
+  workdir: meson.current_build_dir() / '..' / '..',
   env: env)

test/shaping/meson.build

@@ -276,9 +276,9 @@ foreach file_name : in_house_tests
     args: [
       files('run-tests.py')[0],
       hb_shape,
-      join_paths(meson.current_source_dir(), 'data/in-house/tests', file_name),
+      meson.current_source_dir() / 'data' / 'in-house' / 'tests' / file_name,
     ],
-    workdir: join_paths(meson.current_build_dir(), '..', '..'),
+    workdir: meson.current_build_dir() / '..' / '..',
   )
 endforeach
 
@@ -289,9 +289,9 @@ foreach file_name : aots_tests
     args: [
       files('run-tests.py')[0],
       hb_shape,
-      join_paths(meson.current_source_dir(), 'data/aots/tests', file_name),
+      meson.current_source_dir() / 'data' / 'aots' / 'tests' / file_name,
     ],
-    workdir: join_paths(meson.current_build_dir(), '..', '..'),
+    workdir: meson.current_build_dir() / '..' / '..',
   )
 endforeach
 
@@ -302,8 +302,8 @@ foreach file_name : text_rendering_tests
     args: [
       files('run-tests.py')[0],
       hb_shape,
-      join_paths(meson.current_source_dir(), 'data/text-rendering-tests/tests', file_name),
+      meson.current_source_dir() / 'data' / 'text-rendering-tests' / 'tests' / file_name,
     ],
-    workdir: join_paths(meson.current_build_dir(), '..', '..'),
+    workdir: meson.current_build_dir() / '..' / '..',
   )
 endforeach

test/subset/meson.build

@@ -33,11 +33,11 @@ foreach t : tests
   test(t, run_test,
     args: [
       hb_subset,
-      join_paths(meson.current_source_dir(), 'data', 'tests', fname),
+      meson.current_source_dir() / 'data' / 'tests' / fname,
     ],
     # as the tests are ran concurrently let's raise acceptable time here
     # ideally better to break and let meson handles them in parallel
     timeout: 500,
-    workdir: join_paths(meson.current_build_dir(), '..', '..'),
+    workdir: meson.current_build_dir() / '..' / '..',
   )
 endforeach