osx conundrum

[David Duke]

I have a conundrum on which advice would be appreciate. Does
anyone know how to successfully install ghc on OSX
I've tried various binary instalation routes:
macports, brew, direct binary downloads from haskel.org
All have the same result. when I try to compile a basic hello world program
I get

Undefined symbols for architecture x86_64:
  "_iconv", referenced from:
      _hs_iconv in libHSbase-4.14.3.0.a(iconv.o)
     (maybe you meant:
_base_GHCziIOziEncodingziIconv_iconvEncoding1_closure,
_base_GHCziIOziEncodingziIconv_iconvEncoding1_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding4_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding15_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding4_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding7_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding6_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding6_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding8_info , _hs_iconv_open ,
_base_GHCziIOziEncodingziIconv_iconvEncoding9_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding12_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding11_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding9_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding12_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding13_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding11_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding7_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding13_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding2_info ,
_base_GHCziIOziEncodingziIconv_iconvEncoding14_bytes ,
_base_GHCziIOziEncodingziIconv_iconvEncoding15_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding3_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding8_closure ,
_base_GHCziIOziEncodingziIconv_iconvEncoding2_closure , _hs_iconv ,
_base_GHCziIOziEncodingziIconv_iconvEncoding10_bytes , _hs_iconv_close ,
_base_GHCziIOziEncodingziIconv_iconvEncoding5_closure )
  "_iconv_open", referenced from:
      _hs_iconv_open in libHSbase-4.14.3.0.a(iconv.o)
     (maybe you meant: _hs_iconv_open)
  "_iconv_close", referenced from:
      _hs_iconv_close in libHSbase-4.14.3.0.a(iconv.o)
     (maybe you meant: _hs_iconv_close)
  "_locale_charset", referenced from:
      _localeEncoding in libHSbase-4.14.3.0.a(PrelIOUtils.o)
ld: symbol(s) not found for architecture x86_64

I've triedgiong  through ghcup

8.8.4
8.6.5.
8.10.2
8.10.7
9.0.1

all have the same problem.
I'd be happy to build from source. Small problem: what Haskell compiler do
I use?

Any advice on installs that works along with any changes to paths to avoid
the iconv problems would be appreciated as currently my Haskell-related
activities have come to a grinding halt. Switchig to a different OS would
be nice but its not a
feasible option a at present.Writing a compiler is starting to look
attractive..

thanks
David

-- 
David Duke
Emeritus Professor of Computer Science
School of Computing University of Leeds UK
E:duke.j.david at gmail.com
W:https://engineering.leeds.ac.uk/staff/334/Professor_David_Duke
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