From d44e5dae0f61a836b7f9cdf0c391cf11504bb9b9 Mon Sep 17 00:00:00 2001
From: Jeff Cohen
You will also need several open source packages: bison, flex, and sed. These must be installed in llvm/win32/tools. These can be found at - http://gnuwin32.sourceforge.net/ - . Bison prefers that m4 be in the path. You must add it to the Visual - Studio configuration under the menu Options -> Projects -> VC++ - Directories. Alternatively, you can set the environment variable M4 - to point to m4 executable.
+ http://gnuwin32.sourceforge.net + or + http://unxutils.sourceforge.net. + Bison prefers that m4 be in the path. You must add it to the Visual Studio + configuration under the menu Options -> Projects -> VC++ Directories. + Alternatively, you can set the environment variable M4 to point to + m4 executable.