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http://crosstool-ng.org/
1) Install crosstool-ng 1.18.0 for building crosstools
cd crosstool-ng-1.18.0/
./configure --prefix=/usr/local/cross
./configure --prefix=/usr/local/x-tools
make
make install
2) Build gcc 4.6.3 for armhf-unknown-linux-gnueabi and armsf-unknown-linux-gnueabi
We assume the cross toolchain to be install in "/usr/local/x-tools/", i.e.
/usr/local/x-tools/armhf-unknown-linux-gnueabi
/usr/local/x-tools/armsf-unknown-linux-gnueabi
mkdir armhf-unknown-linux-gnueabi ; cd armhf-unknown-linux-gnueabi
ct-ng arm-unknown-linux-gnueabi
ct-ng menuconfig (copy/read the provided .config files)
- disable compiler: gcj, fortran
- target: suffix=hf
- target: float=hardware
ct-ng build
mkdir armsf-unknown-linux-gnueabi ; cd armsf-unknown-linux-gnueabi
ct-ng arm-unknown-linux-gnueabi
ct-ng menuconfig (copy/read the provided .config files)
- disable compiler: gcj, fortran
- target: suffix=sf
- target: float=softfp
ct-ng build
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