LLVM build on MinGW

building llvm-2.6

1. download and install MinGW
2. download and install cmake
3. download llvm
4. tar xvzf llvm-2.6.tar.gz
5. mkdir llvm-cmake
6. cd llvm-cmake
7. cmake -G "MinGW Makefiles" ..\llvm-2.6
8. it'll fail
9. open CMakeCache.txt
10. write CMAKE_C_COMPILER_ENVVAR:FILEPATH=C:/MinGW/bin/gcc.exe
11. cmake -G "MinGW Makefiles" ..\llvm-2.6
12. mingw32-make

For llvm 2.7,

1. unzip llvm-2.7
2. unzip clang source under llvm-27/tools/clang
3. cd llvm-cmake
4. cmake -G "MinGW Makefiles" -DCMAKE_INSTALL_PREFIX="/home/opt/llvm" ..\llvm-2.7
5. mingw32-make DESTDIR=C: install

v8 on mingw

1. install python
2. install scons
3. install svn
4. checkout v8 svn checkout http://v8.googlecode.com/svn/trunk/ v8
5. edit Sconstruct and comment out -Werror (maybe there's a way to disable it from command line) vim v8/SConstruct
6. cd v8
7. scons
8. g++ -Iinclude samples\shell.cc libv8.a -lwinmm -lws2_32 -o v8.exe