Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.

changed the license to the AGPL 3 in version 9.07 so print/ghostscript9-base is stuck at 9.06 which is almost 4 years old now. Fix the logic in Uses/ghostscript.mk so "agpl" is treated as a real version on its own instead of as a variant of other versions. Fix print/ghostscript9-agpl-base to install eps2write. Update math/asymptote to 2.37 to support newer Ghostscript. PR: 208159 Exp-run by: antoine Approved by: portmgr (antoine)

These were FreeBSD specific aliases for libiconv(), libiconv_open() and
libiconv_close() that are now also provided by libc which complicates
writing configure tests that work correctly when both libc iconv and
libiconv are available.

Also, because the libiconv iconv.h header redefines iconv* to libiconv*
correct use of the header implies that the aliases aren't used.

The following ports needed fixes because there was something wrong with
the way they tried to detect or use iconv:

audio/deadbeef: Remove LIBICONV_PLUG from a source file.  It's a
compile-time option and should not be set in source code.
comms/hidapi: Use standard AM_ICONV configure macro to look for iconv.
deskutils/fbreader: Let ports framework deal with LIBICONV_PLUG.
deskutils/ljclive: Override configure test for iconv.
deskutils/owncloudclient: Add USES=iconv and patch test for iconv.
devel/aegis: Bump PORTREVISION because it no longer uses libiconv.
devel/libexplain: Add USES=iconv and override test for iconv.
devel/sdl20: Override configure test for iconv.
emulators/vmw: Replace OSVERSION checks with ICONV_LIB checks and include
<iconv.h> instead of <sys/iconv.h>.
irc/scrollz: Override configure test for iconv.
japanese/chasen-base: Override configure test for iconv and patch
configure so it no longer adds -liconv to linker flags just because it
happens to be installed.
japanses/eb: Patch configure test for iconv.
japanses/eblook: Override configure test for iconv.
java/jikes: Override configure test for iconv.
multimedia/transcode: Bump PORTREVISION because only one plugin links with
libiconv now.
net/c3270: Override configure test for iconv.
net/samba4*: Bump PORTREVISION because it no longer uses libiconv.  The
configure script will always add -liconv to the linker flags when it
happens to be installed which would be wrong but later on binaries are
linked with -Wl,--as-needed and the linker discards -liconv because it
finds iconv*() functions in libc now and no longer in libiconv.
net-mgmt/icinga-*: Remove dependency on iconv.
net-mgmt/netxms: Patch configure so it no longer adds -liconv to linker
flags just because it happens to be installed.
net/asterisk11: Patch configure so it no longer adds -liconv to linker
flags just because it happens to be installed.
net-p2p/transmission-*: Override configure test for iconv.
www/htmlcxx: Override configure test for iconv.
www/httrack: Override configure test for iconv.
www/xapian-omega: Override configure test for iconv.
x11/mrxvt(-devel): Add USES=iconv and override configure test for iconv.
x11/x3270: Override configure test for iconv.
x11-wm/jwm: Override configure test for iconv.

PR:		202838
Exp-run by:	antoine
Approved by:	portmgr (antoine)

* print/ghostscript{7,8,9,9-agpl}-base Installs Ghostscript binary, libgs, and related files. These ports do not depend on X11 libraries (i.e. x11* devices are not available). USES=ghostscript will set dependency on one of them depending on GHOSTSCRIPT_DEFAULT. The default device is set to "display" or "bbox". * print/ghostscript{7,8,9,9-agpl}-x11 Installs a shared library which provides X11 support to the installed Ghostscript binaries. x11* devices will be enabled when the library is available. This depends on *-base (RUN_DEPENDS). USES=ghostscript:x11 will set dependency on one of them. - Fix integer overflow reported as CVE-2015-3228. - Update Uses/ghostscript.mk: * Add x11 keyword. nox11 keyword is now obsolete. * Use packagename in *_DEPENDS line to prevent relationship between -base and -x11 packages from being broken. - Fix x11/nox11 keyword and bump PORTREVISION in ports using USES=ghostscript to update dependency of pre-compiled packages.