f0c190239a
Breaking changes: To build Lean from source on Windows, it is now necessary to install the [Windows SDK](https://developer.microsoft.com/en-us/windows/downloads/windows-sdk/). The build instructions have been updated to reflect this. Note that the Windows SDK is **not** needed to compile Lean programs using a Lean toolchain obtained using `elan`. The Windows SDK is only needed to build Lean itself from source. Furthermore, we are dropping support for Windows versions older than Windows 10 1903 (released in May 2019). No Windows version that is still supported by Microsoft as part of mainstream support is affected by this. The following Windows versions are still supported by Microsoft as part of commercial extended support but are no longer supported by Lean: - Windows 10 Enterprise LTSC 2015 - Windows 10 Enterprise LTSC 2016 - Windows 10 Enterprise LTSC 2019 - Windows Server 2019
51 lines
3.3 KiB
Bash
51 lines
3.3 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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# run from root build directory in clang64 shell (NOT mingw64) as in
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# ```
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# eval cmake ../.. $(../../script/prepare-llvm-mingw.sh ~/Downloads/lean-llvm-x86_64-w64-windows-gnu.tar.zst)
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# ```
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# use full LLVM release for compiling C++ code, but subset for compiling C code and distribution
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# must run `tar` twice in case of symlinked files listed before their targets...
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[[ -d llvm ]] || (mkdir llvm; tar xf $1 --dereference --strip-components 1 --directory llvm || tar xf $1 --dereference --strip-components 1 --directory llvm)
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mkdir -p stage1/{bin,lib,include/clang}
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# a C compiler!
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cp llvm/bin/clang stage1/bin/
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# a linker!
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cp llvm/bin/{ld.lld,lld} stage1/bin/
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# a static archiver!
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cp llvm/bin/llvm-ar stage1/bin/
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# dependencies of the above
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cp $(ldd llvm/bin/{clang,lld,llvm-ar}.exe | cut -f3 -d' ' --only-delimited | grep -E 'llvm|clang64') stage1/bin
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# lean.h dependencies
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cp llvm/lib/clang/*/include/{std*,__std*,limits}.h stage1/include/clang
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# single Windows dependency
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echo '
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// https://docs.microsoft.com/en-us/windows/win32/api/errhandlingapi/nf-errhandlingapi-seterrormode
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#define SEM_FAILCRITICALERRORS 0x0001
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__declspec(dllimport) __stdcall unsigned int SetErrorMode(unsigned int uMode);' > stage1/include/clang/windows.h
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# COFF dependencies
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cp /clang64/lib/{crtbegin,crtend,crt2,dllcrt2}.o stage1/lib/
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# runtime
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(cd llvm; cp --parents lib/clang/*/lib/*/libclang_rt.builtins* ../stage1)
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# further dependencies
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# Note: even though we're linking against libraries like `libbcrypt.a` which appear to be static libraries from the file name,
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# we're not actually linking statically against the code.
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# Rather, `libbcrypt.a` is an import library (see https://en.wikipedia.org/wiki/Dynamic-link_library#Import_libraries) that just
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# tells the compiler how to dynamically link against `bcrypt.dll` (which is located in the System32 folder).
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# This distinction is relevant specifically for `libicu.a`/`icu.dll` because there we want updates to the time zone database to
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# be delivered to users via Windows Update without having to recompile Lean or Lean programs.
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cp /clang64/lib/lib{m,bcrypt,mingw32,moldname,mingwex,msvcrt,pthread,advapi32,shell32,user32,kernel32,ucrtbase,psapi,iphlpapi,userenv,ws2_32,dbghelp,ole32,icu}.* /clang64/lib/libgmp.a /clang64/lib/libuv.a llvm/lib/lib{c++,c++abi,unwind}.a stage1/lib/
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echo -n " -DLEAN_STANDALONE=ON"
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echo -n " -DCMAKE_C_COMPILER=$PWD/stage1/bin/clang.exe -DCMAKE_C_COMPILER_WORKS=1 -DCMAKE_CXX_COMPILER=$PWD/llvm/bin/clang++.exe -DCMAKE_CXX_COMPILER_WORKS=1 -DLEAN_CXX_STDLIB='-lc++ -lc++abi'"
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echo -n " -DSTAGE0_CMAKE_C_COMPILER=clang -DSTAGE0_CMAKE_CXX_COMPILER=clang++"
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echo -n " -DLEAN_EXTRA_CXX_FLAGS='--sysroot $PWD/llvm -idirafter /clang64/include/'"
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echo -n " -DLEANC_INTERNAL_FLAGS='--sysroot ROOT -nostdinc -isystem ROOT/include/clang' -DLEANC_CC=ROOT/bin/clang.exe"
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echo -n " -DLEANC_INTERNAL_LINKER_FLAGS='-L ROOT/lib -static-libgcc -Wl,-Bstatic -lgmp $(pkg-config --static --libs libuv) -lunwind -Wl,-Bdynamic -fuse-ld=lld'"
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# when not using the above flags, link GMP dynamically/as usual. Always link ICU dynamically.
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echo -n " -DLEAN_EXTRA_LINKER_FLAGS='-lgmp $(pkg-config --libs libuv) -lucrtbase'"
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# do not set `LEAN_CC` for tests
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echo -n " -DAUTO_THREAD_FINALIZATION=OFF -DSTAGE0_AUTO_THREAD_FINALIZATION=OFF"
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echo -n " -DLEAN_TEST_VARS=''"
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