Merge pull request #12907 from yuwata/meson-default-libidn2

meson: use libidn2 and drop udev debug option

NEWS

@@ -70,6 +70,9 @@ CHANGES WITH 243 in spe:
           build/man/man systemctl
           build/man/html systemd.index
 
+        * libidn2 is used by default if both libidn2 and libidn are installed.
+          Please use -Dlibidn=true when libidn is favorable.
+
         * The D-Bus "wire format" for CPUAffinity attribute is changed on
           big-endian machines. Before, bytes were written and read in native
           machine order as exposed by the native libc __cpu_mask interface.

meson.build

@@ -793,7 +793,6 @@ substs.set('DEBUGTTY', get_option('debug-tty'))
 enable_debug_hashmap = false
 enable_debug_mmap_cache = false
 enable_debug_siphash = false
-enable_debug_udev = false
 foreach name : get_option('debug-extra')
         if name == 'hashmap'
                 enable_debug_hashmap = true
@@ -801,8 +800,6 @@ foreach name : get_option('debug-extra')
                 enable_debug_mmap_cache = true
         elif name == 'siphash'
                 enable_debug_siphash = true
-        elif name == 'udev'
-                enable_debug_udev = true
         else
                 message('unknown debug option "@0@", ignoring'.format(name))
         endif
@@ -810,7 +807,6 @@ endforeach
 conf.set10('ENABLE_DEBUG_HASHMAP', enable_debug_hashmap)
 conf.set10('ENABLE_DEBUG_MMAP_CACHE', enable_debug_mmap_cache)
 conf.set10('ENABLE_DEBUG_SIPHASH', enable_debug_siphash)
-conf.set10('ENABLE_DEBUG_UDEV', enable_debug_udev)
 
 conf.set10('VALGRIND', get_option('valgrind'))
 conf.set10('LOG_TRACE', get_option('log-trace'))
@@ -989,24 +985,24 @@ if want_libidn == 'true' and want_libidn2 == 'true'
         error('libidn and libidn2 cannot be requested simultaneously')
 endif
 
-if want_libidn != 'false' and want_libidn2 != 'true' and not skip_deps
-        libidn = dependency('libidn',
-                            required : want_libidn == 'true')
-        have = libidn.found()
-else
-        have = false
-        libidn = []
-endif
-conf.set10('HAVE_LIBIDN', have)
-if not have and want_libidn2 != 'false' and not skip_deps
-        # libidn is used for both libidn and libidn2 objects
+if want_libidn2 != 'false' and want_libidn != 'true' and not skip_deps
         libidn = dependency('libidn2',
                             required : want_libidn2 == 'true')
         have = libidn.found()
 else
         have = false
+        libidn = []
 endif
 conf.set10('HAVE_LIBIDN2', have)
+if not have and want_libidn != 'false' and not skip_deps
+        # libidn is used for both libidn and libidn2 objects
+        libidn = dependency('libidn',
+                            required : want_libidn == 'true')
+        have = libidn.found()
+else
+        have = false
+endif
+conf.set10('HAVE_LIBIDN', have)
 
 want_libiptc = get_option('libiptc')
 if want_libiptc != 'false' and not skip_deps
@@ -3199,7 +3195,6 @@ foreach tuple : [
         ['debug hashmap'],
         ['debug mmap cache'],
         ['debug siphash'],
-        ['debug udev'],
         ['valgrind',         conf.get('VALGRIND') == 1],
         ['trace logging',    conf.get('LOG_TRACE') == 1],
         ['link-udev-shared',      get_option('link-udev-shared')],

meson_options.txt

@@ -46,7 +46,7 @@ option('debug-shell', type : 'string', value : '/bin/sh',
        description : 'path to debug shell binary')
 option('debug-tty', type : 'string', value : '/dev/tty9',
        description : 'specify the tty device for debug shell')
-option('debug-extra', type : 'array', choices : ['hashmap', 'mmap-cache', 'siphash', 'udev'], value : [],
+option('debug-extra', type : 'array', choices : ['hashmap', 'mmap-cache', 'siphash'], value : [],
        description : 'enable extra debugging')
 option('memory-accounting-default', type : 'boolean',
        description : 'enable MemoryAccounting= by default')