build-sys: meson: Allow building the daemon only

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/659>

man/meson.build

@@ -14,6 +14,7 @@ if get_option('daemon')
   ]
 endif
 
+if not get_option('daemon-only')
 manpages += [
   ['pacat', '1', ['paplay', 'parec', 'parecord', 'pamon']],
   ['pactl', '1'],
@@ -31,6 +32,7 @@ if x11_dep.found()
     ['pax11publish', '1'],
   ]
 endif
+endif
 
 # FIXME: Add esdcompat if HAVE_ESOUND
 #manpages += ['esdcompat', '1'],

meson.build

@@ -53,6 +53,8 @@ libpulse_mainloop_glib_version = '@0@.@1@.@2@'.format(
   libpulse_mainloop_glib_version_info[1],
 )
 
+i18n = import('i18n')
+
 # Paths
 
 prefix = get_option('prefix')
@@ -68,6 +70,7 @@ localedir = join_paths(prefix, get_option('localedir'))
 localstatedir = join_paths(prefix, get_option('localstatedir'))
 sysconfdir = join_paths(prefix, get_option('sysconfdir'))
 privlibdir = join_paths(libdir, 'pulseaudio')
+po_dir = join_paths(meson.current_source_dir(), 'po')
 
 if host_machine.system() == 'windows'
   # Windows only supports loading libraries from the same dir as the executable
@@ -817,20 +820,28 @@ check_dep = dependency('check', version : '>= 0.9.10', required : get_option('te
 if get_option('doxygen')
   subdir('doxygen')
 endif
+if not get_option('daemon-only')
   subdir('po')
+endif
 if get_option('man')
   subdir('man')
 endif
 subdir('shell-completion/bash')
+if not get_option('daemon-only')
   subdir('shell-completion/zsh')
+endif
 subdir('src')
+if not get_option('daemon-only')
  subdir('vala')
+endif
 
 # Now generate config.h from everything above
 configure_file(output : 'config.h', configuration : cdata)
 
 # pkg-config files
 
+if not get_option('daemon-only')
+
 pc_cdata = configuration_data()
 
 pc_cdata.set('prefix', prefix)
@@ -863,8 +874,12 @@ foreach file : pc_files
     install_dir : pkgconfigdir)
 endforeach
 
+endif # !daemon-only
+
 # CMake files
 
+if not get_option('daemon-only')
+
 m4 = find_program('m4', required: true)
 
 cmakedir = join_paths(libdir, 'cmake', 'PulseAudio')
@@ -893,6 +908,8 @@ configure_file(
   install_dir : cmakedir,
 )
 
+endif # !daemon-only
+
 ############################################################
 
 # Final summary

meson_options.txt

@@ -1,6 +1,9 @@
 option('daemon',
        type : 'boolean', value : true,
        description : 'Enable building and installation of pulseaudio daemon and supporting configuration files')
+option('daemon-only',
+       type : 'boolean', value : false,
+       description : 'Build and install only the pulseaudio daemon and supporting configuration files, relying on a system installation of libpulse')
 option('doxygen',
        type : 'boolean', value : true,
        description : 'Enable building and installation of documentation generated with doxygen')

po/meson.build

@@ -1,4 +1,3 @@
-i18n = import('i18n')
 i18n.gettext(
   meson.project_name(),
   preset: 'glib',
@@ -7,5 +6,3 @@ i18n.gettext(
   args: ['--msgid-bugs-address=https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/new',
          '--width=90'],
 )
-
-po_dir = meson.current_source_dir()

shell-completion/bash/meson.build

@@ -8,6 +8,7 @@ if bashcompletiondir != 'no'
     ]
   endif
 
+  if not get_option('daemon-only')
   aliases += [
     'pacat',
     'pactl',
@@ -16,6 +17,7 @@ if bashcompletiondir != 'no'
     'parec',
     'parecord',
   ]
+  endif
 
   install_data('pulseaudio', install_dir : bashcompletiondir)
 

src/daemon/meson.build

@@ -30,8 +30,8 @@ executable('pulseaudio',
   install_rpath : privlibdir,
   include_directories : [configinc, topinc],
   link_args : ['-ffast-math'],
-  link_with : [libpulsecore, libpulsecommon, libpulse],
-  dependencies : [ltdl_dep, cap_dep, dbus_dep, libsystemd_dep, dl_dep, libintl_dep, platform_dep, platform_socket_dep],
+  link_with : [libpulsecore],
+  dependencies : [ltdl_dep, cap_dep, dbus_dep, libsystemd_dep, dl_dep, libintl_dep, platform_dep, platform_socket_dep, libpulsecommon_dep, libpulse_dep],
   c_args : pa_c_args,
 )
 

src/meson.build

@@ -188,6 +188,15 @@ else
 endif
 # FIXME: Do SIMD things
 
+if get_option('daemon-only')
+  libpulsecommon_dep = cc.find_library('pulsecommon-' + pa_version_major_minor, dirs : privlibdir, required : true)
+  libpulse_dep = dependency('libpulse', required : true)
+  libpulse_simple_dep = dependency('libpulse-simple', required : true)
+  if glib_dep.found()
+    libpulse_mainloop_glib_dep = dependency('libpulse-mainloop-glib', required : true)
+  endif
+else
+
 libpulsecommon = shared_library('pulsecommon-' + pa_version_major_minor,
   libpulsecommon_sources,
   libpulsecommon_headers,
@@ -207,6 +216,8 @@ libpulsecommon = shared_library('pulsecommon-' + pa_version_major_minor,
 libpulsecommon_dep = declare_dependency(link_with: libpulsecommon)
 
 subdir('pulse')
+endif
+
 if get_option('daemon')
   subdir('pulsecore')
   subdir('daemon')

src/modules/gsettings/meson.build

@@ -8,8 +8,7 @@ gsettings_helper = executable('gsettings-helper',
   gsettings_helper_sources,
   c_args : pa_c_args,
   include_directories : [configinc, topinc],
-  link_with : [libpulsecommon, libpulse],
-  dependencies : [gio_dep],
+  dependencies : [gio_dep, libpulsecommon_dep, libpulse_dep],
   install_dir : pulselibexecdir,
   install_rpath : privlibdir,
   install : true,

src/tests/meson.build

@@ -20,8 +20,6 @@ default_tests += [
     [ check_dep, libpulse_dep, libpulsecommon_dep ] ],
   [ 'json-test', 'json-test.c',
     [ check_dep, libpulse_dep, libpulsecommon_dep ] ],
-  [ 'mainloop-test', 'mainloop-test.c',
-    [ check_dep, libpulse_dep, libpulsecommon_dep ] ],
   [ 'proplist-test', 'proplist-test.c',
     [ check_dep, libpulse_dep, libpulsecommon_dep ] ],
   [ 'thread-mainloop-test', 'thread-mainloop-test.c',
@@ -32,6 +30,13 @@ default_tests += [
     [ check_dep, libm_dep, libpulse_dep, libpulsecommon_dep ] ],
 ]
 
+if not get_option('daemon-only')
+  default_tests += [
+    [ 'mainloop-test', 'mainloop-test.c',
+      [ check_dep, libpulse_dep, libpulsecommon_dep ] ],
+  ]
+endif
+
 if get_option('daemon')
   default_tests += [
     [ 'asyncmsgq-test', 'asyncmsgq-test.c',

src/utils/meson.build

@@ -1,3 +1,4 @@
+if not get_option('daemon-only')
 pacat_sources = [
   'pacat.c',
 ]
@@ -41,6 +42,7 @@ executable('pactl',
   dependencies : [sndfile_dep, libintl_dep],
   c_args : pa_c_args,
 )
+endif
 
 if get_option('daemon')
   if host_machine.system() != 'windows'
@@ -53,8 +55,7 @@ if get_option('daemon')
       install: true,
       install_rpath : privlibdir,
       include_directories : [configinc, topinc],
-      link_with : [libpulsecommon, libpulse],
-      dependencies: [libintl_dep],
+      dependencies: [libintl_dep, libpulsecommon_dep, libpulse_dep],
       c_args : pa_c_args,
     )
 
@@ -67,13 +68,13 @@ if get_option('daemon')
       install: true,
       install_rpath : privlibdir,
       include_directories : [configinc, topinc],
-      link_with : [libpulsecommon, libpulse],
-      dependencies: [libintl_dep],
+      dependencies: [libintl_dep, libpulsecommon_dep, libpulse_dep],
       c_args : pa_c_args,
     )
   endif
 endif
 
+if not get_option('daemon-only')
 if x11_dep.found()
   pax11publish_sources = [
     'pax11publish.c',
@@ -121,3 +122,4 @@ if dbus_dep.found() and fftw_dep.found()
 endif
 
 install_data('pa-info', install_dir : bindir)
+endif