[vcpkg manifest] look at `platform` directives (#12548)

Fixes #12538

3 files changed, 6 insertions, 2 deletions

diff --git a/toolsrc/include/vcpkg/commands.setinstalled.h b/toolsrc/include/vcpkg/commands.setinstalled.h
index 38cd81369..c5723669b 100644
--- a/toolsrc/include/vcpkg/commands.setinstalled.h
+++ b/toolsrc/include/vcpkg/commands.setinstalled.h
@@ -12,8 +12,7 @@ namespace vcpkg::Commands::SetInstalled
                              const PortFileProvider::PathsPortFileProvider& provider,
                              IBinaryProvider& binary_provider,
                              const CMakeVars::CMakeVarProvider& cmake_vars,
-                             const std::vector<FullPackageSpec>& specs,
-                             const Build::BuildPackageOptions& install_plan_options,
+                             Dependencies::ActionPlan action_plan,
                              DryRun dry_run,
                              const Optional<fs::path>& pkgsconfig_path);
     void perform_and_exit(const VcpkgCmdArguments& args, const VcpkgPaths& paths, Triplet default_triplet);
diff --git a/toolsrc/include/vcpkg/packagespec.h b/toolsrc/include/vcpkg/packagespec.h
index 495056884..e23aa924e 100644
--- a/toolsrc/include/vcpkg/packagespec.h
+++ b/toolsrc/include/vcpkg/packagespec.h
@@ -21,6 +21,8 @@ namespace vcpkg
     ///
     struct PackageSpec
     {
+        constexpr static StringLiteral MANIFEST_NAME = "default";
+
         PackageSpec() = default;
         PackageSpec(std::string name, Triplet triplet) : m_name(std::move(name)), m_triplet(triplet) { }
 
diff --git a/toolsrc/include/vcpkg/portfileprovider.h b/toolsrc/include/vcpkg/portfileprovider.h
index e4b5d9cb5..e26580729 100644
--- a/toolsrc/include/vcpkg/portfileprovider.h
+++ b/toolsrc/include/vcpkg/portfileprovider.h
@@ -32,7 +32,10 @@ namespace vcpkg::PortFileProvider
         std::vector<const SourceControlFileLocation*> load_all_control_files() const override;
 
     private:
+        const SourceControlFileLocation* load_manifest_file() const;
+
         Files::Filesystem& filesystem;
+        fs::path manifest;
         std::vector<fs::path> ports_dirs;
         mutable std::unordered_map<std::string, SourceControlFileLocation> cache;
     };