[GHC] #4112: Building GHC with local libgmp.a fails
GHC
cvs-ghc at haskell.org
Sun Jun 13 08:39:43 EDT 2010
#4112: Building GHC with local libgmp.a fails
------------------------------------+---------------------------------------
Reporter: Itkovian | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Build System | Version: 6.13
Keywords: libgmp, hsc2hs, hsc | Difficulty:
Os: Linux | Testcase:
Architecture: x86_64 (amd64) | Failure: Building GHC failed
------------------------------------+---------------------------------------
Description changed by igloo:
Old description:
> I am trying to build the darcs head of GHC on a platform where I have no
> root privileges and which is lacking libgmp.a -- it does come with the
> .so files for libgmp. Hence, I built my own libgmp, installed in
> ${HOME}/data, i.e., path to libgmp.a is ${HOME}/data/lib.
>
> Options passed to the configure script: --with-gmp-
> includes=${HOME}/data/include/ --with-gmp-libraries=${HOME}/data/lib/
>
> Advice on #ghc taught me to first adjust the ghc script that is part of
> the (working) ghc that I placed on my system -- locally under $HOME.
> Adding -L${HOME}/data/lib and -I${HOME}/data/include does alleviate some
> of the problems -- it allowed ghc-pwd to be build as well as ghc-cabal,
> and ghc-pkg. After that the build continues until hsc is being built.
>
> The main problem now is that hsc2hs is failing to build stuff, more
> specifically, libraries/hsc/dist-boot/build/Trace/Hpc/Reflect_hsc_make.
>
> The package-data.mk for libraries/hsc/dist-boot mentions that gmp be
> added as an extra library (libraries/hpc_dist-boot_DEP_EXTRA_LIBS = rt
> util dl gmp m rt dl), yet the path to libgmp.a is not found in the
> command line.
>
> My guess is that the options passed to configure about the location of
> the gmp library is not making it through to the correct spot.
>
> Contents of package-data.mk:
>
> libraries/hpc_dist-boot_VERSION = 0.5.0.5
> libraries/hpc_dist-boot_MODULES = Trace.Hpc.Util Trace.Hpc.Mix
> Trace.Hpc.Tix Trace.Hpc.Reflect
> libraries/hpc_dist-boot_HIDDEN_MODULES =
> libraries/hpc_dist-boot_SYNOPSIS =Code Coverage Library for Haskell
> libraries/hpc_dist-boot_HS_SRC_DIRS = .
> libraries/hpc_dist-boot_DEPS = base-4.2.0.0 containers-0.3.0.0
> directory-1.0.1.0 old-time-1.0.0.3
> libraries/hpc_dist-boot_DEP_NAMES = base containers directory old-time
> libraries/hpc_dist-boot_INCLUDE_DIRS =
> libraries/hpc_dist-boot_INCLUDES =
> libraries/hpc_dist-boot_INSTALL_INCLUDES =
> libraries/hpc_dist-boot_EXTRA_LIBRARIES =
> libraries/hpc_dist-boot_EXTRA_LIBDIRS =
> libraries/hpc_dist-boot_C_SRCS =
> libraries/hpc_dist-boot_CMM_SRCS = $(addprefix cbits/,$(notdir
> $(wildcard libraries/hpc/cbits/*.cmm)))
> libraries/hpc_dist-boot_HC_OPTS = -Wall -XCPP
> libraries/hpc_dist-boot_CC_OPTS =
> libraries/hpc_dist-boot_CPP_OPTS =
> libraries/hpc_dist-boot_LD_OPTS =
> libraries/hpc_dist-boot_DEP_INCLUDE_DIRS =
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0/include'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0/include'
> '/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
> /old-time-1.0.0.3/include' '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0/include'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/include'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/include'
> libraries/hpc_dist-boot_DEP_CC_OPTS =
> libraries/hpc_dist-boot_DEP_LIB_DIRS =
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0'
> '/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
> /old-time-1.0.0.3' '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/old-locale-1.0.0.2'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/filepath-1.1.0.3'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/containers-0.3.0.0'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/array-0.3.0.0'
> '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0'
> '/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
> /integer-gmp-0.2.0.0' '/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/ghc-prim-0.2.0.0'
> '/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1'
> '/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1'
> libraries/hpc_dist-boot_DEP_EXTRA_LIBS = rt util dl gmp m rt dl
> libraries/hpc_dist-boot_DEP_LD_OPTS =
>
> Output from make at second run -- so the rest has been built:
>
> ===--- updating makefiles phase 0
> make -r --no-print-directory -f ghc.mk phase=0 just-makefiles
> ===--- updating makefiles phase 1
> make -r --no-print-directory -f ghc.mk phase=1 just-makefiles
> ghc.mk:694: libraries/hpc/dist-boot/build/.depend-v.haskell: No such file
> or directory
> "inplace/bin/hsc2hs" --cc=/usr/bin/gcc --ld=/usr/bin/gcc
> -I/user/home/gent/vsc400/vsc40075/data/include/
> --cflag=-D__GLASGOW_HASKELL__=613 '--cflag=-Ilibraries/hpc/.' '--
> cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0/include' '--
> cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0/include' '--
> cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/old-time-1.0.0.3/include' '--
> cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0/include' '--
> cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/include' '--
> cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/include' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/old-time-1.0.0.3' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/old-locale-1.0.0.2' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/filepath-1.1.0.3' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/containers-0.3.0.0' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/array-0.3.0.0' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/integer-gmp-0.2.0.0' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/ghc-prim-0.2.0.0' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1' '--
> lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1' '--lflag=-lrt' '--lflag=-lutil' '--
> lflag=-ldl' '--lflag=-lgmp' '--lflag=-lm' '--lflag=-lrt' '--lflag=-ldl'
> libraries/hpc/./Trace/Hpc/Reflect.hsc -o libraries/hpc/dist-
> boot/build/Trace/Hpc/Reflect.hs
> /usr/bin/ld: cannot find -lgmp
> collect2: ld returned 1 exit status
> linking libraries/hpc/dist-boot/build/Trace/Hpc/Reflect_hsc_make.o failed
> command was: /usr/bin/gcc -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0
> -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0
> -L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
> /old-time-1.0.0.3 -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/old-locale-1.0.0.2
> -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/filepath-1.1.0.3
> -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/containers-0.3.0.0
> -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/array-0.3.0.0
> -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0
> -L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
> /integer-gmp-0.2.0.0 -L/user/home/gent/vsc400/vsc40075/data/ghc-
> release-6.12.1/lib/ghc-6.12.1/ghc-prim-0.2.0.0
> -L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
> -L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
> -lrt -lutil -ldl -lgmp -lm -lrt -ldl libraries/hpc/dist-
> boot/build/Trace/Hpc/Reflect_hsc_make.o -o libraries/hpc/dist-
> boot/build/Trace/Hpc/Reflect_hsc_make
> make[1]: *** [libraries/hpc/dist-boot/build/Trace/Hpc/Reflect.hs] Error 1
> make: *** [all] Error 2
New description:
I am trying to build the darcs head of GHC on a platform where I have no
root privileges and which is lacking libgmp.a -- it does come with the .so
files for libgmp. Hence, I built my own libgmp, installed in ${HOME}/data,
i.e., path to libgmp.a is ${HOME}/data/lib.
Options passed to the configure script: --with-gmp-
includes=${HOME}/data/include/ --with-gmp-libraries=${HOME}/data/lib/
Advice on #ghc taught me to first adjust the ghc script that is part of
the (working) ghc that I placed on my system -- locally under $HOME.
Adding -L${HOME}/data/lib and -I${HOME}/data/include does alleviate some
of the problems -- it allowed ghc-pwd to be build as well as ghc-cabal,
and ghc-pkg. After that the build continues until hsc is being built.
The main problem now is that hsc2hs is failing to build stuff, more
specifically, libraries/hsc/dist-boot/build/Trace/Hpc/Reflect_hsc_make.
The package-data.mk for libraries/hsc/dist-boot mentions that gmp be added
as an extra library (libraries/hpc_dist-boot_DEP_EXTRA_LIBS = rt util dl
gmp m rt dl), yet the path to libgmp.a is not found in the command line.
My guess is that the options passed to configure about the location of the
gmp library is not making it through to the correct spot.
Contents of package-data.mk:
{{{
libraries/hpc_dist-boot_VERSION = 0.5.0.5
libraries/hpc_dist-boot_MODULES = Trace.Hpc.Util Trace.Hpc.Mix
Trace.Hpc.Tix Trace.Hpc.Reflect
libraries/hpc_dist-boot_HIDDEN_MODULES =
libraries/hpc_dist-boot_SYNOPSIS =Code Coverage Library for Haskell
libraries/hpc_dist-boot_HS_SRC_DIRS = .
libraries/hpc_dist-boot_DEPS = base-4.2.0.0 containers-0.3.0.0
directory-1.0.1.0 old-time-1.0.0.3
libraries/hpc_dist-boot_DEP_NAMES = base containers directory old-time
libraries/hpc_dist-boot_INCLUDE_DIRS =
libraries/hpc_dist-boot_INCLUDES =
libraries/hpc_dist-boot_INSTALL_INCLUDES =
libraries/hpc_dist-boot_EXTRA_LIBRARIES =
libraries/hpc_dist-boot_EXTRA_LIBDIRS =
libraries/hpc_dist-boot_C_SRCS =
libraries/hpc_dist-boot_CMM_SRCS = $(addprefix cbits/,$(notdir $(wildcard
libraries/hpc/cbits/*.cmm)))
libraries/hpc_dist-boot_HC_OPTS = -Wall -XCPP
libraries/hpc_dist-boot_CC_OPTS =
libraries/hpc_dist-boot_CPP_OPTS =
libraries/hpc_dist-boot_LD_OPTS =
libraries/hpc_dist-boot_DEP_INCLUDE_DIRS =
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0/include'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0/include'
'/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
/old-time-1.0.0.3/include' '/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0/include'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/include'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/include'
libraries/hpc_dist-boot_DEP_CC_OPTS =
libraries/hpc_dist-boot_DEP_LIB_DIRS =
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0'
'/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
/old-time-1.0.0.3' '/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/old-locale-1.0.0.2'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/filepath-1.1.0.3'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/containers-0.3.0.0'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/array-0.3.0.0'
'/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0'
'/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
/integer-gmp-0.2.0.0' '/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/ghc-prim-0.2.0.0'
'/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1'
'/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1'
libraries/hpc_dist-boot_DEP_EXTRA_LIBS = rt util dl gmp m rt dl
libraries/hpc_dist-boot_DEP_LD_OPTS =
}}}
Output from make at second run -- so the rest has been built:
{{{
===--- updating makefiles phase 0
make -r --no-print-directory -f ghc.mk phase=0 just-makefiles
===--- updating makefiles phase 1
make -r --no-print-directory -f ghc.mk phase=1 just-makefiles
ghc.mk:694: libraries/hpc/dist-boot/build/.depend-v.haskell: No such file
or directory
"inplace/bin/hsc2hs" --cc=/usr/bin/gcc --ld=/usr/bin/gcc
-I/user/home/gent/vsc400/vsc40075/data/include/
--cflag=-D__GLASGOW_HASKELL__=613 '--cflag=-Ilibraries/hpc/.' '--
cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0/include' '--
cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0/include' '--
cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/old-time-1.0.0.3/include' '--
cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0/include' '--
cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/include' '--
cflag=-isystem/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/include' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/old-time-1.0.0.3' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/old-locale-1.0.0.2' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/filepath-1.1.0.3' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/containers-0.3.0.0' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/array-0.3.0.0' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/integer-gmp-0.2.0.0' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/ghc-prim-0.2.0.0' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1' '--
lflag=-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1' '--lflag=-lrt' '--lflag=-lutil' '--
lflag=-ldl' '--lflag=-lgmp' '--lflag=-lm' '--lflag=-lrt' '--lflag=-ldl'
libraries/hpc/./Trace/Hpc/Reflect.hsc -o libraries/hpc/dist-
boot/build/Trace/Hpc/Reflect.hs
/usr/bin/ld: cannot find -lgmp
collect2: ld returned 1 exit status
linking libraries/hpc/dist-boot/build/Trace/Hpc/Reflect_hsc_make.o failed
command was: /usr/bin/gcc -L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/directory-1.0.1.0
-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/unix-2.4.0.0
-L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
/old-time-1.0.0.3 -L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/old-locale-1.0.0.2
-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/filepath-1.1.0.3
-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/containers-0.3.0.0
-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/array-0.3.0.0
-L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/base-4.2.0.0
-L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
/integer-gmp-0.2.0.0 -L/user/home/gent/vsc400/vsc40075/data/ghc-
release-6.12.1/lib/ghc-6.12.1/ghc-prim-0.2.0.0
-L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
-L/user/home/gent/vsc400/vsc40075/data/ghc-release-6.12.1/lib/ghc-6.12.1
-lrt -lutil -ldl -lgmp -lm -lrt -ldl libraries/hpc/dist-
boot/build/Trace/Hpc/Reflect_hsc_make.o -o libraries/hpc/dist-
boot/build/Trace/Hpc/Reflect_hsc_make
make[1]: *** [libraries/hpc/dist-boot/build/Trace/Hpc/Reflect.hs] Error 1
make: *** [all] Error 2
}}}
--
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4112#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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