NetBSD re-synchronization of the source tree

This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.

This updates:
- LLVM to 3.6.1
- GCC to GCC 5.1
- Replace minix/commands/z

NetBSD re-synchronization of the source tree

This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.

This updates:
- LLVM to 3.6.1
- GCC to GCC 5.1
- Replace minix/commands/zdump with usr.bin/zdump
- external/bsd/libelf has moved to /external/bsd/elftoolchain/
- Import ctwm
- Drop sprintf from libminc

Change-Id: I149836ac18e9326be9353958bab9b266efb056f0

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Update download urls in fetch.sh

Change-Id: Ib3d6c2771e8bc6d03efa85af52f2ed6288ebc7dd

Replace wget with ftp as default in fetch scripts

This default is overriden by curl when it is available on the system.

This allows for the fetch script to work on MINIX systems without any
additio

Replace wget with ftp as default in fetch scripts

This default is overriden by curl when it is available on the system.

This allows for the fetch script to work on MINIX systems without any
additions from PKGSRC, while requiring either a netbsd compatible ftp or
curl to be installed on other systems.

Change-Id: Id79f799e1ef0f5fde6bb1c0e570984b7579519fb

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Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)

- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gm

Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)

- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091

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Cross compile on minix support

* Remade patch so it works with minix patch tool.

* New MINIX tar support -ox, so revert back to it

In fetch scripts, tar had been replaced by bsdtar as the pre

Cross compile on minix support

* Remade patch so it works with minix patch tool.

* New MINIX tar support -ox, so revert back to it

In fetch scripts, tar had been replaced by bsdtar as the prebvious
tar did not support the -o flag under minix, which is required to
prevent usage of tar file stored user and group information.

This introduces portability problems. As our new tar tool now
support that flag revert back to improve portability.

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Toolchain upgrade and portability improvements.

upgrade to NetBSD CVS release from 2012/10/17 12:00:00 UTC

Makefiles updates to imporve portability

Made sure to be consistent in the usage of brace

Toolchain upgrade and portability improvements.

upgrade to NetBSD CVS release from 2012/10/17 12:00:00 UTC

Makefiles updates to imporve portability

Made sure to be consistent in the usage of braces/parenthesis at
least on a per file basis. For variables, it is recommended to
continue to use braces.

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Replaced tar with bsdtar to ensure disponibility of -o, which is
needed during builds as root

fetch.sh: serve tarballs ourselves

And use the original sources as backup.

Import lib{mpc,gmp,mpfr}

This decreases external dependencies for crosscompilation. Note that
these libraries are not built nor used by Minix itself.

Furthermore, the shell scripts that download th

Import lib{mpc,gmp,mpfr}

This decreases external dependencies for crosscompilation. Note that
these libraries are not built nor used by Minix itself.

Furthermore, the shell scripts that download the tarballs for these
libraries, gcc, binutils, and gmake now also support curl in addition
to wget.

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