[libsystemd] Fix build on 26.04 ubuntu systems (#51570)

ports/libsystemd/fix-2604-build.patch

@@ -0,0 +1,46 @@
+diff --git a/meson.build b/meson.build
+index a4730f0570..1034ce5fbc 100644
+--- a/meson.build
++++ b/meson.build
+@@ -370,21 +370,6 @@ possible_common_cc_flags = [
+         '-Warray-bounds=2',
+         '-Wdate-time',
+         '-Wendif-labels',
+-        '-Werror=format=2',
+-        '-Werror=format-signedness',
+-        '-Werror=implicit-function-declaration',
+-        '-Werror=implicit-int',
+-        '-Werror=incompatible-pointer-types',
+-        '-Werror=int-conversion',
+-        '-Werror=missing-declarations',
+-        '-Werror=missing-prototypes',
+-        '-Werror=overflow',
+-        '-Werror=override-init',
+-        '-Werror=return-type',
+-        '-Werror=shift-count-overflow',
+-        '-Werror=shift-overflow=2',
+-        '-Werror=strict-flex-arrays',
+-        '-Werror=undef',
+         '-Wfloat-equal',
+         # gperf prevents us from enabling this because it does not emit fallthrough
+         # attribute with clang.
+@@ -511,19 +496,6 @@ userspace_c_ld_args += cc.get_supported_link_arguments(possible_link_flags)
+ have = cc.has_argument('-Wzero-length-bounds')
+ conf.set10('HAVE_ZERO_LENGTH_BOUNDS', have)
+ 
+-if cc.compiles('''
+-   #include <time.h>
+-   #include <inttypes.h>
+-   typedef uint64_t usec_t;
+-   usec_t now(clockid_t clock);
+-   int main(void) {
+-           struct timespec now;
+-           return 0;
+-   }
+-''', args: '-Werror=shadow', name : '-Werror=shadow with local shadowing')
+-        add_project_arguments('-Werror=shadow', language : 'c')
+-endif
+-
+ if cxx_cmd != ''
+         add_project_arguments(cxx.get_supported_arguments(basic_disabled_warnings), language : 'cpp')
+ endif

ports/libsystemd/portfile.cmake

@@ -7,6 +7,7 @@ vcpkg_from_github(
     disable-warning-nonnull.patch
     only-libsystemd.patch
     pkgconfig.patch
+    fix-2604-build.patch
 )
 
 set(static false)

ports/libsystemd/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "libsystemd",
   "version": "257.8",
-  "port-version": 1,
+  "port-version": 2,
   "description": "Libsystemd",
   "homepage": "https://github.com/systemd/systemd",
   "license": null,

versions/baseline.json

@@ -5678,7 +5678,7 @@
     },
     "libsystemd": {
       "baseline": "257.8",
-      "port-version": 1
+      "port-version": 2
     },
     "libtar": {
       "baseline": "1.2.20",

versions/l-/libsystemd.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "2c321fd60481e2ac3996b56c88cd1e6bec5b051e",
+      "version": "257.8",
+      "port-version": 2
+    },
     {
       "git-tree": "9a7380e250b16232a48738c3e0798f07006c24c8",
       "version": "257.8",