No way to use -lgmp from a non-standard location

When building ghc-6.6 from source on FreeBSD 6, I get this error:

== gmake all - --no-print-directory -r;
 in /usr/home/tim/local/src/ghc-6.6/libraries/Cabal/cabal-setup
------------------------------------------------------------------------
../../../compiler/ghc-inplace -o cabal-setup -H16m -O -package Cabal       CabalSetup.o
/usr/bin/ld: cannot find -lgmp
gmake[3]: *** [cabal-setup] Error 1
gmake[2]: *** [all] Error 1
gmake[1]: *** [all] Error 1
gmake[1]: Leaving directory `/usr/home/tim/local/src/ghc-6.6/libraries'
gmake: *** [stage1] Error 2
1:12 ~/local/src/ghc-6.6$ cd libraries/Cabal/cabal-setup
2:01 ~/local/src/ghc-6.6/libraries/Cabal/cabal-setup$ ../../../compiler/ghc-inplace -o cabal-setup -H16m -O -package Cabal CabalSetup.o -L/usr/local/lib
2:02 ~/local/src/ghc-6.6/libraries/Cabal/cabal-setup$ cd -
~/local/src/ghc-6.6
2:02 ~/local/src/ghc-6.6$ gmake
gmake -C utils/mkdependC boot
gmake[1]: Entering directory `/usr/home/tim/local/src/ghc-6.6/utils/mkdependC'
gmake[1]: Leaving directory `/usr/home/tim/local/src/ghc-6.6/utils/mkdependC'

I configured with:

export CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib
./configure --prefix=$HOME/local

My system has /usr/local/lib/libgmp.so; /usr/local/lib is, on FreeBSD, traditionally not in the default search path. It must be specified explicitly to the linker.

Once I compiled cabal-setup by hand, adding -L/usr/local/lib (as shown above), the rest of the build completed normally.

I'm reporting this against ghc 6.6, but I noticed it on 6.4.2 as well.

Trac metadata

Trac field	Value
Version	6.6
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Build System
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