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In addition you can browse our Git history online. Assuming you have Git installed, you can check out the GCC sources using the following command:. If there is another local repository accessible you can avoid re-downloading everything by using --reference , e. But if you own this other copy, you probably want to use separate worktrees instead of multiple clones.

Generated files Our source tree contains a number of files that are generated from other source files by build tools such as Bison, Autoconf, and Gperf. Bison is now required when using Git to access our sources, but all other generated files are included in the source tree so that GCC can be built without these build tools. The Git checkout and update operations do not insure that the timestamps of generated files are later than those of the files they are generated from.

See the comments in that script for instructions on running it. GCC's build system in particular Make uses file timestamps to determine if a generated file needs to be updated by running a particular build tool. Because of this, GCC's build system may believe that a generated file needs regenerating even though its source has not changed, and require a particular build tool to rebuild that generated file. If the appropriate build tool is installed on your system, then this will not be a problem.

There has been some discussion of removing these generated files from GCC's Git source tree there is no discussion of removing them from the released source tarballs. If that happens then building GCC from the Git source tree would require installing the above mentioned build tools. Installing these build tools is not particularly difficult, but can be time consuming especially if you only occasionally install GCC on a particular system.

It is not uncommon to get Git conflict messages for some generated files when updating your local sources from the Git repository. Typically such conflicts occur with autoconf generated files. Such an error is of the form:.

As long as you haven't been making modifications to the generated files or the generator files, it is safe to revert the local differences using git checkout on the affected files, then run git pull again.

If you have changes you want to keep that result in such an error, there are a few options. You can keep those changes on a local branch rather than on a branch tracking upstream sources. Specify your choices, and TuxMake drives the build for you, doing the same steps in the same way every time.

Download Tuxmake here. It supports almost all architectures supported by TuxMake. Download Tuxrun here. The releases from Linaro are based on the Linux mainline kernel and rely upon open-source user space packages exclusively.

Linaro provides Yocto Project and Debian based reference implementations. More information on the supported platforms can be found on the 96boards. Click here for more information on how Linaro helps companies upstream to Qualcomm platforms. The complete Ledge Reference Platform v0.

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