Port the -Wbounded extension from gcc3 to gcc4. Based on work started by
jasper@.

This omits the sizeof(pointer) tracking which is very difficult to
implement for gcc4 due to internal changes.

Than

Port the -Wbounded extension from gcc3 to gcc4. Based on work started by
jasper@.

This omits the sizeof(pointer) tracking which is very difficult to
implement for gcc4 due to internal changes.

Thanks to landry@ for running through a ports bulk build and both
landry@ and jasper@ for fixing a few issues.

ok deraadt millert jasper

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Replace mmap/default precompiled header support using a brk/sbrk
implementation since random mmap breaks the default approach.
Note that gcc may not be compiled with PIE support or it will
break this

Replace mmap/default precompiled header support using a brk/sbrk
implementation since random mmap breaks the default approach.
Note that gcc may not be compiled with PIE support or it will
break this implementation too.

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Import a BSD make based infrastructure for building gcc, based on the
same solution from FreeBSD.
Don't even try to build it at the moment. This is commited so people can
work on it in tree.