@ECHO OFF
SETLOCAL EnableDelayedExpansion

SET target_name=Test.exe

SET target_dir=Target\

SET compiler=g++
SET compiler_flags=-ggdb -Wall -Wextra

SET linker_flags=-L. 

IF NOT EXIST %target_dir% (
    MKDIR %target_dir%
)

FOR /R %%F IN (*.cpp) DO (
    %compiler% -c -I. %%F -o %target_dir%\%%~NF.o 
)

SET obj_array=
FOR /R %%F IN (*.o) DO (
    SET obj_array=!obj_array! %%F
)

%compiler% %obj_array% -o %target_dir%\%target_name% %linker_flags%

DEL %target_dir%\*.o