extension work + static library linking

spec/datatypes.md

@@ -46,6 +46,9 @@ struct LibraryConfig {
     /// Type of library
     LibraryType lib_type;
 
+    /// Package config for the library, leave empty to disable
+    PackageConfig package_config{};
+
     /// Requirments of the library
     Array<Package> requirements;
 
@@ -125,8 +128,8 @@ struct GlobalConfig {
     /// Platform to target (pulled from the target config)
     PlatformTarget target;
 
-    /// Path to the target.hcfg
-    path target_config;
+    /// Path to the platform.hcfg, in_memory if not on-disk
+    string platform_config;
 };
 ```
 
@@ -151,6 +154,9 @@ struct Platform {
     /// C compiler
     string cc_compiler;
 
+    /// Do these compilers produce 32bit code?
+    bool is_64bit;
+
     /// Type of the platform
     PlatformType platform_type;
 };
@@ -162,4 +168,14 @@ enum LanguageType {
     LanguageType_CPP,
     LanguageType_C
 };
+```
+
+## Profile
+```c++
+struct Profile {
+    string name;
+
+    Array<string> compiler_flags;
+    Array<string> linker_flags;
+};
 ```