[tlbuild] texlive-20180117 snapshot on CentOS 7

[Nelson H. F. Beebe]

This morning, I pulled down for the first time a snapshot of the 2018
TeX Live tree, updated my build scripts, and on CentOS 7 got a
successful build that reported

	Checking just-built binaries: expect roughly 415
	............................. found  exactly 432

Great!  

Next, I ran the asymtote build, but it failed like this:

    g++ -Wall -DHAVE_CONFIG_H -D_FILE_OFFSET_BITS=64 -DUSEGC -pthread \
	-DFFTWPP_SINGLE_THREAD -std=c++11 -g -O3 -fno-var-tracking    \
	-I. -Igc-7.6.0/include -o exp.o
	-c exp.cc
    ...
    gc-7.6.0/include/gc_allocator.h:142:8: note: void gc_allocator<GC_Tp>::construct(gc_allocator<GC_Tp>::pointer, const GC_Tp&) [with GC_Tp =
    std::__detail::_Hash_node<std::pair<const sym::symbol, trans::venv::namevalue>, true>; gc_allocator<GC_Tp>::pointer = std::__detail::_Hash_node<std::pair<const
    sym::symbol, trans::venv::namevalue>, true>*]
       void construct(pointer __p, const GC_Tp& __val) { new(__p) GC_Tp(__val); }
	    ^
    gc-7.6.0/include/gc_allocator.h:142:8: note:   candidate expects 2 arguments, 4 provided

So, once again asymptote is its usual stumbling block for TeX Live.

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- Nelson H. F. Beebe                    Tel: +1 801 581 5254                  -
- University of Utah                    FAX: +1 801 581 4148                  -
- Department of Mathematics, 110 LCB    Internet e-mail: beebe at math.utah.edu  -
- 155 S 1400 E RM 233                       beebe at acm.org  beebe at computer.org -
- Salt Lake City, UT 84112-0090, USA    URL: http://www.math.utah.edu/~beebe/ -
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