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

This makes ccache more efficient when recompiling with different
plugins.

src/archive/ArchiveList.cxx

@@ -17,9 +17,9 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include "config.h"
 #include "ArchiveList.hxx"
 #include "ArchivePlugin.hxx"
+#include "archive/Features.h"
 #include "util/StringUtil.hxx"
 #include "plugins/Bzip2ArchivePlugin.hxx"
 #include "plugins/Iso9660ArchivePlugin.hxx"

src/archive/meson.build

@@ -1,3 +1,5 @@
+archive_features = configuration_data()
+
 archive_api = static_library(
   'archive_api',
   'ArchiveList.cxx',
@@ -10,6 +12,8 @@ archive_api_dep = declare_dependency(
 
 subdir('plugins')
 
+configure_file(output: 'Features.h', configuration: archive_features)
+
 conf.set('ENABLE_ARCHIVE', found_archive_plugin)
 if not found_archive_plugin
   archive_glue_dep = dependency('', required: false)

src/archive/plugins/meson.build

@@ -2,21 +2,21 @@ archive_plugins_sources = []
 found_archive_plugin = false
 
 libiso9660_dep = dependency('libiso9660', required: get_option('iso9660'))
-conf.set('ENABLE_ISO9660', libiso9660_dep.found())
+archive_features.set('ENABLE_ISO9660', libiso9660_dep.found())
 if libiso9660_dep.found()
   archive_plugins_sources += 'Iso9660ArchivePlugin.cxx'
   found_archive_plugin = true
 endif
 
 libbz2_dep = c_compiler.find_library('bz2', required: get_option('bzip2'))
-conf.set('ENABLE_BZ2', libbz2_dep.found())
+archive_features.set('ENABLE_BZ2', libbz2_dep.found())
 if libbz2_dep.found()
   archive_plugins_sources += 'Bzip2ArchivePlugin.cxx'
   found_archive_plugin = true
 endif
 
 libzzip_dep = dependency('zziplib', version: '>= 0.13', required: get_option('zzip'))
-conf.set('ENABLE_ZZIP', libzzip_dep.found())
+archive_features.set('ENABLE_ZZIP', libzzip_dep.found())
 if libzzip_dep.found()
   archive_plugins_sources += 'ZzipArchivePlugin.cxx'
   found_archive_plugin = true