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build: 兼容低于 mingw-w64 10 版本运行时的编译器 #402

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Merged
yixy-only merged 1 commit into from
Oct 25, 2026
Merged

build: 兼容低于 mingw-w64 10 版本运行时的编译器 #402

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9 changes: 9 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,15 @@ if(EGE_ENABLE_CAMERA_CAPTURE)
target_link_libraries(xege PRIVATE Threads::Threads)
elseif(WIN32)
target_sources(xege PRIVATE ${EGE_CCAP_WINDOWS_SOURCES})
if(MINGW)
# mingw-w64 9.x 的 mfidl.h 缺少 MFCreateDeviceSource 声明（10.0.0 起才补齐），
# 但 mf.lib 一直导出该符号。编译器/运行时头文件补丁统一放在
# src/compiler_compat/<toolchain>/，这里只强制包含到实际用到它的 ccap MSMF 源文件。
set_source_files_properties(
"3rdparty/ccap/src/ccap_imp_windows_msmf.cpp"
PROPERTIES COMPILE_OPTIONS
"-include;${CMAKE_CURRENT_SOURCE_DIR}/src/compiler_compat/mingw-w64/mfidl_compat.h")
endif()
target_link_libraries(xege PRIVATE
mf mfplat mfreadwrite mfuuid shlwapi propsys)
target_compile_definitions(xege PRIVATE
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22 changes: 22 additions & 0 deletions src/compiler_compat/mingw-w64/mfidl_compat.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
#pragma once

/*
* mingw-w64 < 10.0.0 compatibility declarations for Media Foundation headers.
*
* mfidl.h in these toolchains does not declare MFCreateDeviceSource even though
* mf.lib exports it. The declaration was added to mfidl.idl in mingw-w64
* v10.0.0; older MinGW toolchains therefore need this build-time shim.
*
* This header is private to the build and is force-included only into ccap's
* Media Foundation translation unit. MSVC and newer mingw-w64 headers never
* see an active declaration here.
*/
#if defined(_WIN32) && defined(__MINGW32__) && \
(!defined(__MINGW64_VERSION_MAJOR) || __MINGW64_VERSION_MAJOR < 10)

#include <mfapi.h>
#include <mfidl.h>

extern "C" HRESULT WINAPI MFCreateDeviceSource(IMFAttributes *pAttributes, IMFMediaSource **ppSource);

#endif
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