Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

This commit was generated by cvs2svn to compensate for changes in r171825,
which included commits to RCS files with non-trunk default branches.

GCC 4.2.1 release.

GCC 4.2.0 release.

Gcc 3.4.2 20040728.

Gcc 3.3.1-pre as of 2003-07-11.

Cause CVS to sync up checked out source bases with Gcc 3.1 bits after
the repo surgery to cut out the abortive Gcc 2.9[67] imports.

Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.

Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0.
These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.

Import the setjump/longjump exception handling fixes from GCC 2.95.3.test3
that were removed from GCC 2.95.3.test4 and the subsequent release due
to problems on HP-UX. However, they work just fine on all the BSD's.

W/o these patches the following program segmentation faults if compiled
with -O2 (but not -Os or -O or -O0):

#include <stdio.h>

class A {
public:
A() { printf("c'tor A\n"); }
~A(){ printf("d'tor A\n"); }
};

class foo : public A {
public:
foo() { printf("C'tor foo\n"); throw 8; }
~foo() { printf("D'tor foo\n"); }
};

int main(){
try { foo fii; }
catch (int){ printf("catch ...\n"); }
return 0;
}

Virgin import of the GCC 2.95.3 compilers

Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1

Virgin import of the GCC 2.95.1 compilers

Virgin import of gcc from EGCS 1.1.2