Warning: Couldn't figure out linker information!

$ cabal-1.18.0.2 install --with-ghc=ghc-7.8.0.20140228 utility-ht-0.0.10
...
[ 1 of 24] Compiling Text.Show.HT     ( src/Text/Show/HT.hs, dist/build/Text/Show/HT.o )
[ 2 of 24] Compiling Text.Read.HT     ( src/Text/Read/HT.hs, dist/build/Text/Read/HT.o )
[ 3 of 24] Compiling Data.Strictness.HT ( src/Data/Strictness/HT.hs, dist/build/Data/Strictness/HT.o )
[ 4 of 24] Compiling Control.Monad.HT ( src/Control/Monad/HT.hs, dist/build/Control/Monad/HT.o )
[ 5 of 24] Compiling Data.Tuple.HT    ( src/Data/Tuple/HT.hs, dist/build/Data/Tuple/HT.o )
[ 6 of 24] Compiling Control.Functor.HT ( src/Control/Functor/HT.hs, dist/build/Control/Functor/HT.o )
[ 7 of 24] Compiling Data.Monoid.HT   ( src/Data/Monoid/HT.hs, dist/build/Data/Monoid/HT.o )
[ 8 of 24] Compiling Data.Maybe.HT    ( src/Data/Maybe/HT.hs, dist/build/Data/Maybe/HT.o )
[ 9 of 24] Compiling Data.Ix.Enum     ( src/Data/Ix/Enum.hs, dist/build/Data/Ix/Enum.o )
[10 of 24] Compiling Data.Function.HT.Private ( src/Data/Function/HT/Private.hs, dist/build/Data/Function/HT/Private.o )
[11 of 24] Compiling Data.Function.HT ( src/Data/Function/HT.hs, dist/build/Data/Function/HT.o )
[12 of 24] Compiling Data.List.Key.Private ( src/Data/List/Key/Private.hs, dist/build/Data/List/Key/Private.o )
[13 of 24] Compiling Data.List.Key    ( src/Data/List/Key.hs, dist/build/Data/List/Key.o )
[14 of 24] Compiling Data.Ord.HT      ( src/Data/Ord/HT.hs, dist/build/Data/Ord/HT.o )
[15 of 24] Compiling Data.Eq.HT       ( src/Data/Eq/HT.hs, dist/build/Data/Eq/HT.o )
[16 of 24] Compiling Data.Bool.HT.Private ( src/Data/Bool/HT/Private.hs, dist/build/Data/Bool/HT/Private.o )
[17 of 24] Compiling Data.Bool.HT     ( src/Data/Bool/HT.hs, dist/build/Data/Bool/HT.o )
[18 of 24] Compiling Data.List.Match.Private ( src/Data/List/Match/Private.hs, dist/build/Data/List/Match/Private.o )
[19 of 24] Compiling Data.List.HT.Private ( src/Data/List/HT/Private.hs, dist/build/Data/List/HT/Private.o )
[20 of 24] Compiling Data.List.HT     ( src/Data/List/HT.hs, dist/build/Data/List/HT.o )
[21 of 24] Compiling Data.Record.HT.Private ( src/Data/Record/HT/Private.hs, dist/build/Data/Record/HT/Private.o )
[22 of 24] Compiling Data.Record.HT   ( src/Data/Record/HT.hs, dist/build/Data/Record/HT.o )
[23 of 24] Compiling Data.String.HT   ( src/Data/String/HT.hs, dist/build/Data/String/HT.o )
[24 of 24] Compiling Data.List.Match  ( src/Data/List/Match.hs, dist/build/Data/List/Match.o )
[ 1 of 24] Compiling Text.Show.HT     ( src/Text/Show/HT.hs, dist/build/Text/Show/HT.p_o )

<no location info>:
    Warning: Couldn't figure out linker information!
             Make sure you're using GNU gcc, or clang
[ 2 of 24] Compiling Text.Read.HT     ( src/Text/Read/HT.hs, dist/build/Text/Read/HT.p_o )
[ 3 of 24] Compiling Data.Strictness.HT ( src/Data/Strictness/HT.hs, dist/build/Data/Strictness/HT.p_o )
[ 4 of 24] Compiling Control.Monad.HT ( src/Control/Monad/HT.hs, dist/build/Control/Monad/HT.p_o )
...

The warning only appears for the first module in profiling mode. What does the warning mean?

Trac metadata

Trac field	Value
Version	7.8.1-rc2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Linux
Architecture