Add experimental meson.build file

Author: danyspin97

dummy_main.d

@@ -0,0 +1,3 @@
+// Add a dummy main so that there are not any linking issue when building
+// unittest for dstep
+void main() {}

meson.build

@@ -0,0 +1,78 @@
+project('dstep', 'd', version: '1.0.1')
+
+if get_option('buildtype') == 'release'
+    add_project_arguments('-O3', language: 'd')
+endif
+
+resource_dir = meson.current_source_dir() / 'resources'
+add_project_arguments('-J=' + resource_dir, language: 'd')
+
+src = [
+    'clang/Compiler.d',
+    'clang/Cursor.d',
+    'clang/Diagnostic.d',
+    'clang/File.d',
+    'clang/Index.d',
+    'clang/SourceLocation.d',
+    'clang/SourceRange.d',
+    'clang/Token.d',
+    'clang/TranslationUnit.d',
+    'clang/Type.d',
+    'clang/Util.d',
+    'clang/Visitor.d',
+    'clang/c/BuildSystem.d',
+    'clang/c/CXCompilationDatabase.d',
+    'clang/c/CXErrorCode.d',
+    'clang/c/CXString.d',
+    'clang/c/Documentation.d',
+    'clang/c/Index.d',
+    'clang/c/Platform.d',
+    'dstep/Configuration.d',
+    'dstep/core/Exceptions.d',
+    'dstep/driver/Application.d',
+    'dstep/driver/CommandLine.d',
+    'dstep/driver/Util.d',
+    'dstep/translator/CommentIndex.d',
+    'dstep/translator/Context.d',
+    'dstep/translator/ConvertCase.d',
+    'dstep/translator/Declaration.d',
+    'dstep/translator/Enum.d',
+    'dstep/translator/HeaderIndex.d',
+    'dstep/translator/IncludeHandler.d',
+    'dstep/translator/MacroDefinition.d',
+    'dstep/translator/MacroIndex.d',
+    'dstep/translator/MacroParser.d',
+    'dstep/translator/Options.d',
+    'dstep/translator/Output.d',
+    'dstep/translator/Preprocessor.d',
+    'dstep/translator/Record.d',
+    'dstep/translator/Translator.d',
+    'dstep/translator/Type.d',
+    'dstep/translator/TypeInference.d',
+    'dstep/translator/TypedefIndex.d',
+    'dstep/translator/objc/Category.d',
+    'dstep/translator/objc/ObjcInterface.d',
+]
+
+# Required for adding llvm as dependency
+add_languages('cpp')
+# Only clang is required, but adding llvm also add the directory where
+# libclang.so is found
+llvm = dependency('llvm')
+# Link to clang
+add_project_link_arguments('-L=-lclang', language: 'd')
+
+executable(
+    'dstep',
+    src + [ 'dstep/main.d' ],
+    dependencies: [ llvm ]
+)
+
+unittest_exe = executable(
+    'dstep_unittest',
+    src + [ 'dummy_main.d' ],
+    dependencies: [ llvm ],
+    d_unittest: true
+)
+test('unittest', unittest_exe)
+