RE: Building a Cygwin version of GCC that targets the PowerPC...

["Rob Taylor" <robt at flyingpig dot com>]

Adrian Michaud wrote:
>Does anyone know of, or have a pointer to instructions on how to build the
latest >GCC on Cygwin that targets a PowerPC processor?  IE:   GCC hosted on
Windows that >builds PowerPC .elf object files...

yep. see attached text file. if you have any problems feel free to ask.

Rob Taylor
Flying Pig Systems
Building a gcc crosscompiler for powerpc on win32

get cygwin, and source for binutils-2.10 gcc-2.95.2-core, gcc-2.85.2, newlib-1.82

Install cygwin [add instructions here]

run cygwin. you'll get a bash prompt (...oh my god it's unix!)

make a folder to do all the work in and cd to it
(e.g. mkdir /cygdrive/d/gcc-win32, cd /cygdrive/d/gcc-win32 - this translates to d:/gcc-win32 in MS land)

unzip binutils and gcc-core and gcc and newlib into there 

make a build directory (build-win32, say)

mkdir build-win32/binutils
cd  build-win32/binutils
../../binutils-2.10/configure --prefix=/usr/target-powerpc --target=powerpc-unknown-eabi
make
make install

export PATH=/usr/target-powerpc/bin:$PATH

cd ..
mkdir gcc-core
cd gcc-core

../../gcc-2.95.2-core/configure  --prefix=/usr/target-powerpc --target=powerpc-unknown-eabi --with-exeext=".exe"
--with-newlib 

make
make install

for some reason the build produces a gcc spec file with CR/LF's rather than LF line endings, so
convert  the line endings on

/usr/target-powerpc/lib/gcc-lib/powerpc-unknown-eabi/2.95.2/spec

[ NOTE:
(if you dont have a suitable tool use the following shell script - create a file called 
dos2unix with this in and stick it in your /usr/local/bin)

#!/bin/sh
cat $1 | sed "s/^M\{1,\}$//" | sed "$ s/^Z//" > $2

]

----- these following stages are only useful if you want a standard c library or c++/java/chill ----


compile newlib
cd ..
mkdir newlib

../../newlib-1.82/configure  --prefix=/usr/target-powerpc/ --target=powerpc-unknown-eabi

make
make install


and finally build a full gcc

cd ..
mkdir gcc
cd gcc

../../gcc-2.95.2/configure  --prefix=/usr/target-powerpc --target=powerpc-unknown-eabi --with-exeext=".exe"
--with-newlib 

make
make install



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