[cfe-dev] Building Clang Compiler-RT on Windows with MinGW

[Wilk Gardariki]

I had a problem while trying to build Clang with Compiler-RT on Windows with
MinGW. The problem apeared while getting OS memory page size. MinGW, AFAIK,
does not implement sysconf function and does not define _SC_PAGESIZE. The
workaround I've found is to add check, if Compiler-RT is being built on
windows, and add platform dependent code to get the satisfied memory page
size. After my changes everything was succesfuly built. More information in
patch file.  enable_execute_stack.c.patch
<http://clang-developers.42468.n3.nabble.com/file/n4033828/enable_execute_stack.c.patch>  

I guess it's important: I've used  mman-win32
<http://code.google.com/p/mman-win32/>   implementation, 'cause I didn't
find any in MinGW.

P.S. Sorry, if I'm doing something wrong and for my bad English. I'll be
glad for any information about my misstakes.



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