Compilation of CalcManager fails on Linux

Author: dongfengweixiaoCreated Nov 9, 2025Updated Sep 9, 2026

I am trying to compile CalcManager as a dynamic library to be used by other programming languages, but I have encountered a problem during the build process.

The compilation fails on Linux because the header files intsafe.h and winerror.h are not found. These headers are specific to Windows and do not exist on Linux, which is causing the build to fail.

cmakelists

# The Flutter tooling requires that developers have CMake 3.10 or later
# installed. You should not increase this version, as doing so will cause
# the plugin to fail to compile for some customers of the plugin.
cmake_minimum_required(VERSION 3.10)

project(calcengine_library VERSION 0.0.1 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(PCH_FILE ${CMAKE_CURRENT_SOURCE_DIR}/calculator/src/CalcManager/pch.h)
if(EXISTS ${PCH_FILE} AND NOT WIN32)
    file(READ ${PCH_FILE} PCH_CONTENT)
    
    string(REPLACE "#include <intsafe.h>" "// #include <intsafe.h>" PCH_CONTENT "${PCH_CONTENT}")
    string(REPLACE "#include <winerror.h>" "// #include <winerror.h>" PCH_CONTENT "${PCH_CONTENT}")
    
    file(WRITE ${PCH_FILE} "${PCH_CONTENT}")
    message(STATUS "Modified pch.h to comment out Windows-specific includes")
endif()

file(GLOB_RECURSE SOURCES 
  "calculator/src/CalcManager/CEngine/*.cpp" 
  "calculator/src/CalcManager/Ratpack/*.cpp"
  "calculator/src/CalcManager/*.cpp"
)
file(GLOB_RECURSE HEADERS
  "calculator/src/CalcManager/Header Files/*.h"
  "calculator/src/CalcManager/Ratpack/*.h"
  "calculator/src/CalcManager/*.h"
)
list(FILTER SOURCES EXCLUDE REGEX ".*UnitTests.*")

add_library(calcengine SHARED ${SOURCES})

target_compile_definitions(calcengine PUBLIC DART_SHARED_LIB)

target_include_directories(calcengine PRIVATE
    "calculator/src/CalcManager"
    "calculator/src/CalcManager/Header Files"
    "calculator/src/CalcManager/Ratpack"
    "calculator/src/CalcManager/CEngine"
)

target_precompile_headers(calcengine PRIVATE
  "calculator/src/CalcManager/pch.h"
)

if (ANDROID)
  # Support Android 15 16k page size
  target_link_options(calcengine PRIVATE "-Wl,-z,max-page-size=16384")
endif()

Source: microsoft/calculator

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