spdlog: fix compilation with std::format

Author: stephanlachnit

releases.json

@@ -3938,6 +3938,7 @@
       "spdlog"
     ],
     "versions": [
+      "1.15.3-4",
       "1.15.3-3",
       "1.15.3-2",
       "1.15.3-1",

subprojects/packagefiles/spdlog/meson.build

@@ -12,6 +12,7 @@ thread_dep = dependency('threads')
 
 spdlog_dependencies = [thread_dep]
 spdlog_compile_args = []
+override_cpp = 'cpp_std=c++17'
 
 if meson.get_compiler('cpp').has_header_symbol(
   'format',
@@ -23,6 +24,7 @@ if meson.get_compiler('cpp').has_header_symbol(
     '',
     required: false,
   )
+  override_cpp = 'cpp_std=c++20'
 else
   fmt_dep = dependency(
     'fmt',

subprojects/packagefiles/spdlog/src/meson.build

@@ -19,7 +19,7 @@ spdlog_lib = library(
   include_directories: inc,
   dependencies: spdlog_dependencies,
   cpp_args: spdlog_compile_args,
-  override_options: 'cpp_std=c++17',
+  override_options: override_cpp,
   soversion: version_parts[0] + '.' + version_parts[1],
   version: meson.project_version(),
   install: true,

subprojects/packagefiles/spdlog/tests/meson.build

@@ -53,7 +53,7 @@ test(
   executable(
     'tests_exe',
     test_src,
-    override_options: 'cpp_std=c++17',
+    override_options: override_cpp,
     dependencies: [catch2_dep, spdlog_dep],
   ),
 )