RISC OS GCC 10 intro

[Stefan (Cloverleaf)]

Actually there exists the official GCC release for RISC OS of version 4.7.2.
For the release of the new !Iris browser Lee Noa has been working on GCC 10.2.
There might be some other people involved but I don't have insight information about it. So sorry for possibly incomplete information.

From the GCC mailing list at RISCOS.info I got this info from Chris Gardensen:

The GCCK 10.2.0 native compiler hasn't been released yet. Once you have the
autobuilder set up you can build it yourself.

mkdir gccsdk
cd gccsdk
svn co svn://svn.riscos.info/gccsdk/trunk/autobuilder/ autobuilder
svn co svn://svn.riscos.info/gccsdk/trunk/gcc4/ gcc4

mkdir build
cd build


Create a file call build-setvars containing the following contents.
(Assuming the autobuilder has been installed in /home/gccsdk.)

      GCCSDK_INSTALL_CROSSBIN=/home/gccsdk/cross/bin
      GCCSDK_INSTALL_ENV=/home/gccsdk/env
      RO_SHAREDLIBS=yes
      RO_USE_ARMEABIHF=yes
      AB_ELFBUILD=yes

rm -f /home/gccsdk/autobuilder/develop/gcc/gcc.dwarf2out.c.p
../autobuilder/build -v gcc

The packages for the native compiler will be created in
/home/gccsdk/autobuilder/autobuilder_packages/arm/Development.

Using GCC natively on RISC OS is very slow. It's OK for simple stuff.

I had to set a 32000k wimplot otherwise everything froze.

Using GCC 10.2.0 with the autobuilder successully builds e.g. Qupzilla,
RPCEmu, ffmpeg and  mplayer.