fix(build-check): only add global arguments when not a subproject

This is needd to let gridfire work as a subproject

build-check/meson.build

@@ -5,8 +5,10 @@ cc = meson.get_compiler('c')
 
 ignore_unused_args = '-Wno-unused-command-line-argument'
 
-add_global_arguments(ignore_unused_args, language: 'cpp')
-add_global_arguments(ignore_unused_args, language: 'c')
+if !meson.is_subproject()
+  add_global_arguments(ignore_unused_args, language: 'cpp')
+  add_global_arguments(ignore_unused_args, language: 'c')
+endif
 
 
 subdir('CPPC')

src/include/gridfire/utils/config.h.in

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <format>
+
+namespace gridfire {
+    struct version {
+        static constexpr int major = #STRINGIFY(GF_VERSION_MAJOR);
+        static constexpr int minor = #STRINGIFY(GF_VERSION_MINOR);
+        static constexpr int patch = #STRINGIFY(GF_VERSION_PATCH);
+
+        static constexpr const char* tag = #STRINGIFY(GF_VERSION_TAG);
+    };
+}
+
+template <>
+struct std::formatter<gridfire::version> : std::formatter<std::string> {
+    auto format(const gridfire::version& v, auto& ctx) {
+        std::string versionStr = std::to_string(v.major) + "." +
+                                 std::to_string(v.minor) + "." +
+                                 std::to_string(v.patch);
+        if (std::string(v.tag) != "") {
+            versionStr += "-" + std::string(v.tag);
+        }
+        return std::formatter<std::string>::format(versionStr, ctx);
+    }
+};