11.0-CURRENT: lang/gcc, lang/gcc5, lang/gcc6-devel, lang/llvm38, etc. do not build on/for armv6 (now implicitly hard float)

[Mark Millard]

I'm  not sure that Gerald or Brooks were CC'd on a report made to the arm list about armv6 builds of gcc and llvm being broken now because of hard float now being implicit:
(the first report listed below has more detail directly visible for gcc examples)

https://lists.freebsd.org/pipermail/freebsd-arm/2016-May/013931.html
and:
https://lists.freebsd.org/pipermail/freebsd-arm/2016-May/013930.html
https://lists.freebsd.org/pipermail/freebsd-arm/2016-May/013932.html
https://lists.freebsd.org/pipermail/freebsd-arm/2016-May/013933.html

The first (013931.html) shows that xgcc for configure:3686 for contest.c ends up with the likes of:

/usr/local/bin/ld: error: a.out uses VFP register arguments,
/wrkdirs/usr/ports/lang/gcc/work/.build/./gcc/crtbegin.o does not
/usr/local/bin/ld: failed to merge target specific data of file
/wrkdirs/usr/ports/lang/gcc/work/.build/./gcc/crtbegin.o
/usr/local/bin/ld: error: a.out uses VFP register arguments,
/tmp//cchNL2QG.o does not
/usr/local/bin/ld: failed to merge target specific data of file /tmp//cchNL2QG.o
/usr/local/bin/ld: error: a.out uses VFP register arguments,
/wrkdirs/usr/ports/lang/gcc/work/.build/./gcc/crtend.o does not
/usr/local/bin/ld: failed to merge target specific data of file
/wrkdirs/usr/ports/lang/gcc/work/.build/./gcc/crtend.o
collect2: error: ld returned 1 exit status

and points to gcc/config.gcc only having TARGET_FREEBSD_ARM_HARD_FLOAT=1 for arm*hf-*-freebsd* . But now armv6*-*-freebsd* is also hard float for 11.0-CURRENT.

Of course until everyone updates to modern enough armv6 context a mix of softfloat and hardfloat will be around.

===
Mark Millard
markmi at dsl-only.net