*/plugins/meson.build: define feature macros in Features.h

This makes ccache more efficient when recompiling with different
plugins.

src/input/Registry.cxx

@@ -19,6 +19,7 @@
 
 #include "Registry.hxx"
 #include "InputPlugin.hxx"
+#include "input/Features.h"
 #include "plugins/TidalInputPlugin.hxx"
 #include "plugins/QobuzInputPlugin.hxx"
 #include "config.h"

src/input/meson.build

@@ -1,3 +1,5 @@
+input_features = configuration_data()
+
 input_api = static_library(
   'input_api',
   'Error.cxx',
@@ -54,3 +56,5 @@ input_glue_dep = declare_dependency(
     tag_dep,
   ],
 )
+
+configure_file(output: 'Features.h', configuration: input_features)

src/input/plugins/meson.build

@@ -7,7 +7,7 @@ if alsa_dep.found()
 endif
 
 libcdio_paranoia_dep = dependency('libcdio_paranoia', version: '>= 10.2+0.93+1', required: get_option('cdio_paranoia'))
-conf.set('ENABLE_CDIO_PARANOIA', libcdio_paranoia_dep.found())
+input_features.set('ENABLE_CDIO_PARANOIA', libcdio_paranoia_dep.found())
 if libcdio_paranoia_dep.found()
   input_plugins_sources += 'CdioParanoiaInputPlugin.cxx'
 endif
@@ -25,7 +25,7 @@ if ffmpeg_dep.found()
 endif
 
 libmms_dep = dependency('libmms', version: '>= 0.4', required: get_option('mms'))
-conf.set('ENABLE_MMS', libmms_dep.found())
+input_features.set('ENABLE_MMS', libmms_dep.found())
 if libmms_dep.found()
   input_plugins_sources += 'MmsInputPlugin.cxx'
 endif
@@ -47,7 +47,7 @@ else
     error('Qobuz requires CURL, libyajl and libgcrypt')
   endif
 endif
-conf.set('ENABLE_QOBUZ', enable_qobuz)
+input_features.set('ENABLE_QOBUZ', enable_qobuz)
 if enable_qobuz
   input_plugins_sources += [
     'QobuzClient.cxx',
@@ -68,7 +68,7 @@ else
     error('Tidal requires CURL and libyajl')
   endif
 endif
-conf.set('ENABLE_TIDAL', enable_tidal)
+input_features.set('ENABLE_TIDAL', enable_tidal)
 if enable_tidal
   input_plugins_sources += [
     'TidalErrorParser.cxx',