hsc2hs forces wordsize (i.e. -m32 or -m64) to be the choice of GHC instead of allowing a different (or no/default choice)

I am not sure whether to call this a bug as it does not cause a failure of GHC but a failure of UHC which also uses hsc2hs.

The problem occurs when UHC builds for a different wordsize than GHC, in particular UHC 64 bits, GHC 32 bits. The wrapper then forces -m32 when running hsc2hs via the environment variable HSC2HS_EXTRA. This cannot be turned off. A (temporary) solution is to uncomment the following lines in the wrapper script /usr/bin/hsc2hs:

#        -c*)          HSC2HS_EXTRA=;;
#        --cc=*)       HSC2HS_EXTRA=;;

This turns off the extra flags when a C compiler is explicitly specified, amongst which the -m32, and just lets the user define (or not define) the required flags when another compiler is explicitly used.

Trac metadata

Trac field	Value
Version	7.4.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	hsc2hs
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