[tlbuild] Test failures for dvipdmfx on OpenBSD

[Nelson H. F. Beebe]

Mojca reports a failure of makejvf.test on OpenBSD, but didn't mention
the O/S version number. 

I just checked my build log from OpenBSD 6.8 on amd64 (== x86_64):

	/usr/uumath/bin/gmake  check-TESTS
	gmake[4]: Entering directory '/local/build/bare/texlive-20210106/source/Work/texk/makejvf'
	gmake[5]: Entering directory '/local/build/bare/texlive-20210106/source/Work/texk/makejvf'
	PASS: makejvf.test

Here is my build environment:

	exec_prefix          = /local/build/bare/texlive-20210106/source/inst
	libdir               = /usr/uumath/lib
	prefix               = /usr/uumath
	tlarch               =
	tlmodel              = amd64
	tlrelease            = 6.8
	tlsystem             = OpenBSD
	CC                   = cc
	CFLAGS               =
	CPPFLAGS             =
	CXX                  = c++
	CXXFLAGS             = -std=c++14
	CLISP                = /usr/local/bin/clisp
	GNUDF                = /usr/local/bin/gdf
	GNUDU                = /usr/local/bin/gdu
	GNUMAKE              = /usr/uumath/bin/gmake
	GNUTAR               = /usr/uumath/bin/gtar
	LD                   =
	LDFLAGS              =
	LIBS                 =
	PATH                 = /usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/sbin:/usr/uumath/bin
	TL_BUILD_ENV         =  CC=cc CXX=c++ CPPFLAGS=-DU_PLATFORM=U_PF_BSD LIBS=' -L/usr/X11R6/lib -Wl,-rpath,/usr/X11R6/lib -lpthread -lm '
	TL_COMPILER_GFLAGS   =  -g -I/usr/X11R6/include/freetype2 -I/usr/X11R6/include -I/usr/local/include -I/usr/include
	TL_CONFIGURE_FLAGS   = --exec-prefix=/local/build/bare/texlive-20210106/source/inst --with-iconv=no --disable-luajittex --disable-mfluajit --enable-xindy
	C compiler version   = OpenBSD clang version 10.0.1
	C++ compiler version = OpenBSD clang version 10.0.1

I'll try to get some builds on earlier OpenBSD started today (which,
alas, is budget work).

-------------------------------------------------------------------------------
- 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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