DGen

- Lookup the value of `dgen:compiler` from the config and use that as the C compiler

Configuration

- Set default value of `dgen:compiler` to `"clang"`

Commands

- Added a command to specify the C compile to use
- Transfer `-cccompiler`/`-cc` over to a config entry

source/tlang/commandline/commands.d

@@ -66,6 +66,10 @@ mixin template EmitBase()
         @ArgNamed("prettygen|pg", "Generate pretty-printed code")
         @(ArgConfig.optional)
         bool prettyPrintCodeGen = true;
+
+        @ArgNamed("ccompiler|cc", "The system C compiler to use for DGne (C emitter)")
+        @(ArgConfig.optional)
+        string systemCC = "clang";
         
         @ArgNamed("output|o", "Filename of generated object file")
         @(ArgConfig.optional)
@@ -99,6 +103,9 @@ mixin template EmitBase()
         // Set whether or not to enable pre-inlining of function call arguments in DGen
         compiler.getConfig().addConfig(ConfigEntry("dgen:preinline_args", preinlineArguments));
 
+        // Set the C compiler to use for DGen
+        compiler.getConfig().addConfig(ConfigEntry("dgen:compiler", systemCC));
+
         // Set the paths to the object files to link in
         compiler.getConfig().addConfig(ConfigEntry("linker:link_files", bruh));
     }

source/tlang/compiler/codegen/emit/dgen.d

@@ -1286,7 +1286,8 @@ int main()
         try
         {
             //NOTE: Change to system compiler (maybe, we need to choose a good C compiler)
-            string[] compileArgs = ["clang", "-o", "tlang.out", file.name()];
+            string systemCompiler = config.getConfig("dgen:compiler").getText();
+            string[] compileArgs = [systemCompiler, "-o", "tlang.out", file.name()];
 
             // Check for object files to be linked in
             string[] objectFilesLink;

source/tlang/compiler/configuration.d

@@ -212,6 +212,9 @@ public final class CompilerConfiguration
         /* Set the mapping to hashing of entity names for DGen (TODO: This should be changed before release) */
         config.addConfig(ConfigEntry("dgen:mapper", "hashmapper"));
 
+        /* Set the system C compiler for DGen to clang */
+        config.addConfig(ConfigEntry("dgen:compiler", "clang"));
+
         /**
          * Configure, at compile time, the system type aliases
          */