build with Meson instead of autotools

So long, autotools!  This is my last MPD related project to migrate
away from it.  It has its strengths, but also very obvious weaknesses
and weirdnesses.  Today, many of its quirks are not needed anymore,
and are cumbersome and slow.  Now welcome our new Meson overlords!

win32/build.py

@@ -2,6 +2,7 @@
 
 import os, os.path
 import sys, subprocess
+import shutil
 
 configure_args = sys.argv[1:]
 
@@ -73,7 +74,15 @@ class CrossGccToolchain:
 
         # redirect pkg-config to use our root directory instead of the
         # default one on the build host
-        self.env['PKG_CONFIG_LIBDIR'] = os.path.join(install_prefix, 'lib/pkgconfig')
+        import shutil
+        bin_dir = os.path.join(install_prefix, 'bin')
+        try:
+            os.makedirs(bin_dir)
+        except:
+            pass
+        self.pkg_config = shutil.copy(os.path.join(mpd_path, 'build', 'pkg-config.sh'),
+                                      os.path.join(bin_dir, 'pkg-config'))
+        self.env['PKG_CONFIG'] = self.pkg_config
 
 # a list of third-party libraries to be used by MPD on Android
 from build.libs import *
@@ -103,30 +112,6 @@ for x in thirdparty_libs:
 
 # configure and build MPD
 
-configure = [
-    os.path.join(mpd_path, 'configure'),
-    'CC=' + toolchain.cc,
-    'CXX=' + toolchain.cxx,
-    'CFLAGS=' + toolchain.cflags,
-    'CXXFLAGS=' + toolchain.cxxflags,
-    'CPPFLAGS=' + toolchain.cppflags,
-    'LDFLAGS=' + toolchain.ldflags + ' -static',
-    'LIBS=' + toolchain.libs,
-    'AR=' + toolchain.ar,
-    'RANLIB=' + toolchain.ranlib,
-    'STRIP=' + toolchain.strip,
-    '--host=' + toolchain.arch,
-    '--prefix=' + toolchain.install_prefix,
-
-    '--enable-silent-rules',
-
-    '--disable-icu',
-
-] + configure_args
-
-from build.cmdline import concatenate_cmdline_variables
-configure = concatenate_cmdline_variables(configure,
-    set(('CFLAGS', 'CXXFLAGS', 'CPPFLAGS', 'LDFLAGS', 'LIBS')))
-
-subprocess.check_call(configure, env=toolchain.env)
-subprocess.check_call(['/usr/bin/make', '--quiet', '-j12'], env=toolchain.env)
+from build.meson import configure as run_meson
+run_meson(toolchain, mpd_path, '.', configure_args)
+subprocess.check_call(['/usr/bin/ninja'], env=toolchain.env)

win32/meson.build

@@ -0,0 +1 @@
+subdir('res')

win32/res/meson.build

@@ -0,0 +1,18 @@
+windows_conf = configuration_data()
+windows_conf.set('VERSION', meson.project_version())
+
+splitted_version = meson.project_version().split('.')
+windows_conf.set('VERSION_MAJOR', splitted_version[0])
+windows_conf.set('VERSION_MINOR', splitted_version.get(1, '0'))
+windows_conf.set('VERSION_REVISION', splitted_version.get(2, '0'))
+windows_conf.set('VERSION_EXTRA', splitted_version.get(3, '0'))
+windows_conf.set('srcdir', meson.current_source_dir())
+
+mpd_rc = configure_file(
+  input: 'mpd.rc.in',
+  output: 'mpd.rc',
+  configuration: windows_conf,
+)
+
+windows_mod = import('windows')
+windows_resources = windows_mod.compile_resources(mpd_rc)

win32/res/mpd.rc.in

@@ -3,7 +3,7 @@
 #define VERSION_NUMBER @VERSION_MAJOR@,@VERSION_MINOR@,@VERSION_REVISION@,@VERSION_EXTRA@
 #define VERSION_NUMBER_STR "@VERSION_MAJOR@,@VERSION_MINOR@,@VERSION_REVISION@,@VERSION_EXTRA@"
 
-MPD_ICON ICON "@top_srcdir@/win32/res/mpd.ico"
+MPD_ICON ICON "@srcdir@/mpd.ico"
 
 1 VERSIONINFO
 FILETYPE VFT_APP