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lvgl/CMakeLists.txt
André Costa 283d49ef82
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build(cmake): fix MSVC exports for shared/static libraries on Windows (#9026)
Co-authored-by: bedrock <gaojie1@novastar.tech>
2025-10-09 16:07:25 -03:00

45 lines
1.5 KiB
CMake

cmake_minimum_required(VERSION 3.12.4)
set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
if(NOT ESP_PLATFORM)
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_LIST_DIR)
project(
lvgl
LANGUAGES C
HOMEPAGE_URL https://github.com/lvgl/lvgl)
endif()
if(NOT (CMAKE_C_COMPILER_ID STREQUAL "MSVC"))
enable_language(CXX ASM)
else()
enable_language(CXX)
endif()
endif()
set(LVGL_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR})
if(ESP_PLATFORM)
include(${CMAKE_CURRENT_LIST_DIR}/env_support/cmake/esp.cmake)
elseif(MICROPY_DIR)
include(${CMAKE_CURRENT_LIST_DIR}/env_support/cmake/micropython.cmake)
else()
include(${CMAKE_CURRENT_LIST_DIR}/env_support/cmake/os_desktop.cmake)
endif()
#[[
unfortunately CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS does not work for global data.
for global data we still need decl specs.
Check out the docs to learn more about the limitations of CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS
https://cmake.org/cmake/help/latest/prop_tgt/WINDOWS_EXPORT_ALL_SYMBOLS.html#prop_tgt:WINDOWS_EXPORT_ALL_SYMBOLS
For all compiled sources within the library (i.e. basically all lvgl files) we need to use dllexport.
For all compiled sources from outside the library (i.e. files which include lvgl headers) we need to use dllimport.
We can do this by using CMakes INTERFACE and PRIVATE keyword.
]]
if(MSVC AND BUILD_SHARED_LIBS)
target_compile_definitions(
lvgl
INTERFACE "LV_ATTRIBUTE_EXTERN_DATA=__declspec(dllimport)"
PRIVATE "LV_ATTRIBUTE_EXTERN_DATA=__declspec(dllexport)")
endif()