Add: 'cpp-compiler' runtime flag.

example.kalem

@@ -6,6 +6,9 @@
 !flag("cpp-standard=c++2a")
 !flag("cpp-output=false")
 
+// default=clang
+!flag("cpp-compiler=default")
+
 // Its type is not boolean.
 !flag("cpp-flags=false")
 

include/Kalem_Codegen.hpp

@@ -23,6 +23,7 @@ typedef struct {
     std::string kl_cpp_standard     = "c++17";
     std::string kl_cpp_flags        = "-lstdc++fs";
     std::string kl_cpp_include_dirs = "";
+    std::string kl_cpp_compiler     = "clang++";
 
     std::vector<std::string> kl_source_files;
 

src/Kalem.cpp

@@ -109,7 +109,8 @@ int main(int argc, char** argv) {
     }
 
     // TODO: Create !flag("stdflag=...")
-    _exec.RunFunction("clang++ "
+    _exec.RunFunction(__codegen_.kl_cpp_compiler
+        + " "
         + __codegen_.kl_cpp_include_dirs
         + " -std="
         + __codegen_.kl_cpp_standard

src/Kalem_Codegen.cpp

@@ -337,6 +337,11 @@ Kalem_Codegen::Kl_Codegen(KALEM_TOKEN _token, std::string _variable, std::string
                     _codegen.kl_cpp_flags = append_flag;
                 }
             }
+            else if(flag == "cpp-compiler") {
+                if(append_flag != "default") {
+                    _codegen.kl_cpp_compiler = append_flag;
+                }
+            }
 
             break;
         }