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[Gm2] Building gcc-4.7.3+gm2 on Windows7/Cygwin32

From: Christoph Schlegel
Subject: [Gm2] Building gcc-4.7.3+gm2 on Windows7/Cygwin32
Date: Sat, 28 Sep 2013 16:00:28 +0200

Hello Gaius,

I can report a successfull build using gcc-4.7.3+gm2-cvs-latest.tar.gz 
(27-Sep-2013) under Cygwin32 (Setup.exe version 2.829 (32 
bit)) running on top of Windows 7.

Here are some instructions for those who want to do the same:

Packages needed for the build are libmpfr-dev, libgmp-dev, libmpc-dev and flex
There is no gcc-multilib package under Cygwin but it is apparently not needed.

I used the configuration from the 4.7 series documentation which works fine.

$ CXXFLAGS=-g BOOT_CFLAGS=-g CFLAGS=-g ../gcc-4.7.3/configure \
  --prefix=$HOME/opt \
  --libexecdir=$HOME/opt/lib \
  --enable-shared \
  --enable-threads=posix --enable-__cxa_atexit \
  --enable-clocale=gnu --enable-languages=c,c++,gm2 \
  --disable-multilib --disable-bootstrap --enable-checking --enable-libgm2

After make installing the compiler you have to

export PATH=~/opt/bin:$PATH

To build the hello world example after installing the compiler you have to call 
make post-install instead of make in the 
directory ~/build-4.7.3/gcc/gm2/examples/hello

A problem is reported because of the 'size a.out' command (instead of a.exe) 
which can be ignored. Hello world builds fine.

                === gm2 Summary ===

# of expected passes            8372
# of unexpected failures        540
# of unresolved testcases       246

The build is available here:

You have to mkdir a directory opt in your home folder and extract the contents 
of the archive in there.

I will try Cygwin64 as soon as there is time -



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