loader: Add link_requires

This just loads the link_requires, but doesn't do anything with it.

Author: dcbaker

src/cps/loader.cpp

@@ -249,6 +249,8 @@ namespace cps::loader {
                         .value_or(std::vector<std::string>{});
                 auto const location = CPS_TRY(get_optional<std::string>(comp, name, "location"));
                 auto const link_location = CPS_TRY(get_optional<std::string>(comp, name, "link_location"));
+                auto const link_requires = CPS_TRY(get_optional<std::vector<std::string>>(comp, name, "link_requires"))
+                                               .value_or(std::vector<std::string>{});
                 auto const require = CPS_TRY(get_optional<std::vector<std::string>>(comp, name, "requires"))
                                          .value_or(std::vector<std::string>{});
 
@@ -268,6 +270,7 @@ namespace cps::loader {
                     .definitions = std::move(definitions),
                     .link_flags = std::move(link_flags),
                     .link_libraries = std::move(link_libraries),
+                    .link_requires = std::move(link_requires),
                     .location = std::move(location),
                     .link_location = std::move(link_location),
                     .require = std::move(require),

src/cps/loader.hpp

@@ -70,7 +70,7 @@ namespace cps::loader {
         std::vector<std::string> link_flags;
         // TODO: std::vector<LinkLanguage> link_languages;
         std::vector<std::string> link_libraries;
-        // TODO: link_requires
+        std::vector<std::string> link_requires;
         std::optional<std::string> location;
         std::optional<std::string> link_location;
         std::vector<std::string> require; // requires is a keyword

src/cps/pc_compat/pc_loader.cpp

@@ -119,6 +119,7 @@ namespace cps::pc_compat {
                                     .definitions = loader::Defines{},
                                     .link_flags = link_flags,
                                     .link_libraries = {},
+                                    .link_requires = {},
                                     // TODO: Currently lib location is hard coded to appease assertions. This would
                                     // need to implement linker-like search to replicate current behavior.
                                     .location = fmt::format("@prefix@/lib/{}.a", name),