config var test

backend/test/cfg/CMakeLists.txt.good

@@ -0,0 +1,48 @@
+#
+# This program file was generated by the chplx compiler.
+# The original Chapel program file can be found here: "cfg.chpl"
+#
+cmake_minimum_required(VERSION 3.19)
+if(NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Debug CACHE STRING "Configuration type" FORCE)
+endif()
+project(cfg)
+add_executable(cfg cfg.cpp)
+if(NOT APPLE)
+  set(CMAKE_CXX_STANDARD 20)
+endif()
+if(NOT WIN32 AND ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang" AND NOT APPLE)
+  set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} -stdlib=libc++)
+endif()
+if(NOT Chplx_DIR)
+  message(FATAL_ERROR "Chplx_DIR variable undefined")
+endif()
+set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+find_package(fmt REQUIRED CONFIG)
+find_package(HPX REQUIRED CONFIG)
+find_package(Chplx REQUIRED CONFIG)
+set(cfg_sources cfg.cpp)
+set(cfg_headers cfg.hpp)
+if(NOT WIN32 AND ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang" AND APPLE)
+  find_library(CORE_LIBPATH NAMES CoreFoundation REQUIRED)
+  target_compile_options(cfg
+    PUBLIC
+    -nostdlib
+    -std=c++20
+    -O3
+    -stdlib=libc++
+  )
+  target_link_libraries(cfg PRIVATE ${CORE_LIBPATH})
+  target_link_libraries(cfg
+    PUBLIC
+    c++
+  )
+endif()
+target_link_libraries(cfg PUBLIC fmt::fmt-header-only HPX::hpx Chplx::library)
+enable_testing()
+include(CTest)
+add_test(
+  NAME cfg_test
+  COMMAND cfg
+  WORKING_DIRECTORY $<TARGET_FILE_DIR:cfg>
+)

backend/test/cfg/cfg.cpp.good

@@ -0,0 +1,33 @@
+// This program file was generated by the chplx compiler.
+// The original Chapel program file can be found here: cfg.chpl
+//
+#include <hpx/hpx_init.hpp>
+
+#include "cfg.hpp"
+
+// global `config` variables
+//
+std::int64_t config_a;
+std::int64_t config_b = 1;
+
+int hpx_main(int argc, char * argv[]) {
+
+    #line 1 "../../backend/test/cfg.chpl"
+    const std::int64_t a = config_a;
+    #line 2 "../../backend/test/cfg.chpl"
+    std::int64_t b = config_b;
+
+    return hpx::finalize();
+}
+
+int main(int argc, char * argv[]) {
+    hpx::program::options::options::options_description options;
+    options.add_options()
+        ("a",
+            hpx::program_options::value<std::int64_t>(&config_a), "config var a : std::int64_t")
+        ("b",
+            hpx::program_options::value<std::int64_t>(&config_b), "config var b : std::int64_t");
+    hpx::init_params init_args;
+    init_args.desc_cmdline = options;
+    return hpx::init(argc, argv, init_args);
+}

backend/test/cfg/cfg.hpp.good

@@ -0,0 +1,11 @@
+// This program file was generated by the chplx compiler.
+// The original Chapel program file can be found here: "cfg.chpl"
+//
+#pragma once
+
+#ifndef __CFG_HPP__
+#define __CFG_HPP__
+
+#include <chplx.hpp>
+
+#endif