build(meson): generate and install scdoc manpages

man/meson.build

@@ -0,0 +1,22 @@
+manpages = {
+  'pc': 5,
+  'pkgconf': 1
+}
+
+foreach page, section : manpages
+  name = '@0@.@1@'.format(page, section)
+  input =  name + '.scd'
+  tgt = custom_target(
+    input,
+    input: files(input),
+    output: name,
+    capture: true,
+    feed: true,
+    command: scdoc,
+    install: true,
+    install_dir: get_option('mandir') / 'man@0@'.format(section),
+  )
+endforeach
+
+install_man('pkg.m4.7')
+install_man('pkgconf-personality.5')

meson.build

@@ -1,7 +1,7 @@
 project('pkgconf', 'c',
   version : '1.9.3',
   license : 'ISC',
-  meson_version : '>=0.49',
+  meson_version : '>=0.59',
   default_options : ['c_std=c99'],
 )
 
@@ -124,10 +124,13 @@ kyuafile = configure_file(input : 'Kyuafile.in', output : 'Kyuafile', configurat
 test('kyua', kyua_exe, args : ['--config=none', 'test', '--kyuafile', kyuafile, '--build-root', meson.current_build_dir()])
 subdir('tests')
 
-install_man('man/pkgconf.1')
-install_man('man/pkg.m4.7')
-install_man('man/pc.5')
-install_man('man/pkgconf-personality.5')
+# https://github.com/mesonbuild/meson/issues/1550
+# https://github.com/mesonbuild/meson/pull/9342
+scdoc = find_program('scdoc', required: false)
+if scdoc.found()
+  subdir('man')
+endif
+
 install_data('pkg.m4', install_dir: 'share/aclocal')
 install_data('AUTHORS', install_dir: 'share/doc/pkgconf')
 install_data('README.md', install_dir: 'share/doc/pkgconf')