meson: fix warnings, cleanup

meson.build

@@ -46,10 +46,6 @@ endif
 docdir = prefix / 'doc'
 dataroot = datadir / 'aegisub'
 
-if host_machine.system() == 'windows'
-
-endif
-
 # MSVC sets this automatically with -MDd, but it has a different meaning on other platforms
 if get_option('debug') and host_machine.system() != 'windows'
     add_project_arguments('-D_DEBUG', language: 'cpp')

packages/meson.build

@@ -1,15 +1,15 @@
 conf_pkg = configuration_data()
 
 if host_machine.system() == 'windows'
-    installer_setup = find_program(meson.source_root() / 'tools/win-installer-setup.ps1', )
+    installer_setup = find_program(meson.project_source_root() / 'tools/win-installer-setup.ps1', )
     run_target('win-installer',
-               command: [installer_setup, meson.build_root(), meson.source_root()])
+               command: [installer_setup, meson.project_build_root(), meson.project_source_root()])
 elif host_machine.system() == 'darwin'
     # temporary hack until version.sh generates this properly
-    run_command('cp', meson.source_root() / 'tools' / 'osx-bundle.sed', meson.build_root())
+    run_command('cp', meson.project_source_root() / 'tools' / 'osx-bundle.sed', meson.project_build_root())
     fontconfig_conf = run_command('pkg-config', '--variable=confdir', 'fontconfig').stdout().strip()
     run_target('osx-bundle',
-               command: ['../tools/osx-bundle.sh', meson.source_root(), meson.build_root(), 'wx-config', fontconfig_conf, '',
+               command: ['../tools/osx-bundle.sh', meson.project_source_root(), meson.project_build_root(), 'wx-config', fontconfig_conf, '',
                          get_option('build_osx_bundle') ? 'TRUE' : 'FALSE'])
 else
     conf_pkg.set('AEGISUB_COMMAND', 'aegisub')

src/libresrc/meson.build

@@ -1,4 +1,4 @@
-respack = find_program('../../tools/respack.py')
+respack = find_program(meson.project_source_root() / 'tools/respack.py')
 
 resrc = [
     custom_target('bitmap.{cpp,h}',

src/meson.build

@@ -257,4 +257,4 @@ aegisub = executable('aegisub', aegisub_src, version_h, acconf,
                      install: true,
                      install_dir: bindir,
                      dependencies: deps,
-                     gui_app: true)
+                     win_subsystem: 'windows')

tools/respack.py

@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 
-import sys
-import os
+import sys, os
 
 manifestfile, cppfile, hfile = sys.argv[1:]