[LLVMdev] Building LLVM under Mingw. Part I: tools-only

[Jeff Cohen]

Anton Korobeynikov wrote:
> 2. Patching.
>
> 2.1. Libraries
> Add "LIBS+= -lpsapi -limagehlp" to each makefile (AFTER
> Makefile.common inclusion) building some tool (burg, tablegen, ll*),
> since gcc doesn't support vcpp style #pragma's of form:
>  #pragma comment(lib, "dbghelp.lib")
>   
I'd fix this, but I don't touch Unix build stuff :)  I'll let Reid 
handle this one.  I suspect he'll prefer to fix Makefile.common rather 
than each individual makefile.  And dbghelp.lib really ought to be 
used.  imagehlp is very, very obsolete and vanishes on 64-bit Windows.  
Yes, I know mingw doesn't support dbghelp.  I can still rant about it :)
> 2.2 CopyFile
> Patch lib/System/Win32/Path.inc in such way, that declaration of
> CopyFile will look like:
>
> void
> CopyFile(const sys::Path &Dest, const sys::Path &Src) {
>   
Applied.
> 2.3 X86 stuff
> Patch lib/Target/X86/X86SubTarget.cpp & X86JITInfo.cpp in such way:
>
> X86SubTarget.cpp:
> #if defined(__CYGWIN__) || defined(__MINGW32__)
>     TargetType = isCygwin;
> #elif defined(__APPLE__)
>     TargetType = isDarwin;
> #elif defined(_WIN32)
>     TargetType = isWindows;
> #endif
>
>   
This is what's already there.  What changed?
> X86JITInfo.cpp:
> #if defined(__CYGWIN__) || defined(__APPLE__) || defined(__MINGW32__)
>     ".globl _X86CompilationCallback\n"
>   "_X86CompilationCallback:\n"
> #else
> ...
> #if defined(__CYGWIN__) || defined(__APPLE__) || defined(__MINGW32__)
>     "call _X86CompilationCallback2\n"
> #else
>
>   
Applied.
> 2.4 alarm()'s in Sparc backend
>
> Remove from lib/Target/SparcV9/ModuloScheduling/ModuloScheduling.cpp
> all calls to alarm().
>   
This code no longer exists post-1.7.