fix: windows compilation condition

Author: cborla

src/CMakeLists.txt

@@ -7,16 +7,16 @@ project(wazuh-agent)
 include(cmake/CommonSettings.cmake)
 set_common_settings()
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /WX-")
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX-")
-add_compile_options(/w)
-
-if (NOT WIN32)
+if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
     add_custom_target(external_deps ALL
         COMMAND ${CMAKE_MAKE_PROGRAM} -C ${CMAKE_SOURCE_DIR}
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
         COMMENT "Downloading external dependencies"
     )
+else()
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /WX-")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX-")
+    add_compile_options(/w)
 endif()
 
 add_subdirectory(common)