Add Fmi4cpp (#1129)

* Add fmi4cpp

* Add support for all platforms

* Add syslink to windows

* Remove mac support and add patch (broken)

* Add git repo as url

* Add patch to add zlib link on windows

* Remove windows sys link

* Renable clang_fix.patch and change checksum?

* Add macosx support

* Add patch for macosx

* Do different patch for macosx

* Remove macosx support

* Remove windows support

* Add config for shared/static and debug build

packages/f/fmi4cpp/patches/0.8.0/clang_fix.patch

@@ -0,0 +1,26 @@
+diff --git a/include/fmi4cpp/fmi2/xml/model_variables.hpp b/include/fmi4cpp/fmi2/xml/model_variables.hpp
+index 8e3b342..cd70e62 100644
+--- a/include/fmi4cpp/fmi2/xml/model_variables.hpp
++++ b/include/fmi4cpp/fmi2/xml/model_variables.hpp
+@@ -41,8 +41,6 @@ private:
+     const std::vector<scalar_variable> variables_;
+ 
+ public:
+-    model_variables();
+-
+     explicit model_variables(std::vector<scalar_variable>  variables);
+ 
+     [[nodiscard]] size_t size() const;
+diff --git a/src/fmi4cpp/fmi2/xml/model_variables.cpp b/src/fmi4cpp/fmi2/xml/model_variables.cpp
+index d262aa9..a6643f7 100644
+--- a/src/fmi4cpp/fmi2/xml/model_variables.cpp
++++ b/src/fmi4cpp/fmi2/xml/model_variables.cpp
+@@ -30,8 +30,6 @@
+ 
+ using namespace fmi4cpp::fmi2;
+ 
+-model_variables::model_variables() = default;
+-
+ model_variables::model_variables(std::vector<scalar_variable> variables)
+     : variables_(std::move(variables))
+ {}

packages/f/fmi4cpp/patches/0.8.0/win32_zlib.patch

@@ -0,0 +1,27 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 1656d5a..c207351 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -62,6 +62,9 @@ endif ()
+ 
+ find_package(Boost 1.65 COMPONENTS ${Boost_COMPONENTS} REQUIRED)
+ find_package(LIBZIP REQUIRED)
++if (WIN32)
++  find_package(ZLIB REQUIRED)
++endif ()
+ 
+ 
+ # ==============================================================================
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index bf70918..a6474a6 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -112,7 +112,7 @@ target_link_libraries(fmi4cpp
+ )
+ 
+ if(WIN32)
+-    target_link_libraries(fmi4cpp PRIVATE "Bcrypt")
++    target_link_libraries(fmi4cpp PRIVATE "Bcrypt" ZLIB::ZLIB)
+ elseif(UNIX)
+     target_link_libraries(fmi4cpp PRIVATE stdc++fs dl)
+ endif()

packages/f/fmi4cpp/xmake.lua

@@ -0,0 +1,74 @@
+package("fmi4cpp")
+    set_homepage("https://github.com/NTNU-IHB/FMI4cpp")
+    set_description("A cross-platform FMI 2.0 implementation written in modern C++")
+
+    add_urls("https://github.com/NTNU-IHB/FMI4cpp/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/NTNU-IHB/FMI4cpp.git")
+    add_versions("0.8.0", "78616e9c86a23137a8d3a113fe6420207c3f9ea46442e1c75a01215eb2693bb7")
+
+    add_patches("0.8.0", path.join(os.scriptdir(), "patches", "0.8.0", "clang_fix.patch"), "dacd893e90298763223b21b0054dad6d6a82c7c36ab0d3d0cc1984a342c01f9f")
+    add_patches("0.8.0", path.join(os.scriptdir(), "patches", "0.8.0", "win32_zlib.patch"), "99d14ebf2f1d7b848ab5fc5b659826d50429e59810f13b25953fddfc8f4313b7")
+
+    add_deps("cmake", "boost", "libzip")
+
+    on_install("linux", function (package)
+        local configs = {
+            "-DBUILD_SHARED_LIBS=" .. (package:config("shared") and "ON" or "OFF"),
+            "-DCMAKE_BUILD_TYPE=" .. (package:debug() and "Debug" or "Release")
+        }
+        import("package.tools.cmake").install(package, configs)
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <iostream> 
+            #include <fmi4cpp/fmi4cpp.hpp>
+
+            using namespace fmi4cpp;
+
+            const double stop = 10.0;
+            const double stepSize = 0.0001;
+            
+            void test(int argc, char** argv) {
+                fmi2::fmu fmu("path/to/fmu.fmu");
+
+                auto cs_fmu = fmu.as_cs_fmu();
+                auto me_fmu = fmu.as_me_fmu();
+
+                auto cs_md = cs_fmu->get_model_description(); //smart pointer to a cs_model_description instance
+                std::cout << "model_identifier=" << cs_md->model_identifier << std::endl;
+
+                auto me_md = me_fmu->get_model_description(); //smart pointer to a me_model_description instance
+                std::cout << "model_identifier=" << me_md->model_identifier << std::endl;
+
+                auto var = cs_md->get_variable_by_name("my_var").as_real();
+                std::cout << "Name=" << var.name() <<  ", start=" << var.start().value_or(0) << std::endl;
+
+                auto slave = cs_fmu->new_instance();
+
+                slave->setup_experiment();
+                slave->enter_initialization_mode();
+                slave->exit_initialization_mode();
+
+                double t;
+                double value;
+                auto vr = var.valueReference();
+                while ( (t = slave->get_simulation_time()) <= stop) {
+
+                    if (!slave->step(stepSize)) {
+                        std::cerr << "Error! step() returned with status: " << to_string(slave->last_status()) << std::endl;
+                        break;
+                    }
+
+                    if (!slave->read_real(vr, value)) {
+                        std::cerr << "Error! step() returned with status: " << to_string(slave->last_status()) << std::endl;
+                        break;
+                    }
+                    std::cout << "t=" << t << ", " << var.name() << "=" << value << std::endl;
+
+                }
+
+                slave->terminate();
+            }
+        ]]}, {configs = {languages = "cxx17"}}))
+    end)