Can't install cabal-install - haskell

I've just installed Mint 17 on my laptop and followed this with haskell platform generic. (I chose generic instead of using apt-get because it was the only way I could get ghc 7.10) When I try:
cabal install cabal-install
I get this error:
Resolving dependencies...
Configuring cabal-install-1.22.6.0...
Failed to install cabal-install-1.22.6.0
Build log ( /home/william/.cabal/logs/cabal-install-1.22.6.0.log ):
cabal: Error: some packages failed to install:
cabal-install-1.22.6.0 failed during the configure step. The exception was:
user error ('/usr/local/bin/ghc' exited with an error:
/usr/bin/ld: cannot find -lgmp
collect2: error: ld returned 1 exit status
)
Does anyone know how to fix this ?
update:
Fixed by installing libgmp-dev

[edit] You already found that
sudo apt-get install libgmp-dev
should solve your problem (for Mint - for systems without apt-get you would need to use the resident package manager, and in other apt-get based system there could be variation in package names).
If you run into similar errors in the future, here is the reasoning with which to solve the problem: ld is a linker, essentially linking libraries into a program which is being compiled. -lgmp is the argument supplied to ld, telling it to link in the library gmp. It cannot find this library, so either you need to:
(a) tell it about its location in case you know you have the library (the cabal argument --extra-lib-dirs= is useful in this case), or
(b) install the library (google the library name and your system).
GMP is the GNU MP Bignum library which plays a role in providing the Integer and Fractional types.

Related

Unable to Install glpk-hs

I've installed the Haskell Compiler and glpk-hs using the instructions here. Further, I've used cabal install glpk-hs to install required files in an attempt to compile a Haskell Program.
However, the cabal installation of glpk is not working. The following message keeps popping up:
Resolving dependencies...
Configuring glpk-hs-0.5...
Failed to install glpk-hs-0.5
Build log :
cabal: Entering directory '/var/folders/cr/9f1ltj7d4b31hmkfn03hjl_r0000gn/T/cabal-tmp-12521/glpk-hs-0.5'
Configuring glpk-hs-0.5...
cabal.real: Missing dependency on a foreign library:
Missing C library: glpk
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
cabal:
Leaving directory '/var/folders/cr/9f1ltj7d4b31hmkfn03hjl_r0000gn/T/cabal-tmp-12521/glpk-hs-0.5'
cabal: Error: some packages failed to install:
glpk-hs-0.5 failed during the configure step. The exception was:
ExitFailure 1
As above, I have tried both installing glpk in a nonstandard location and the standard location, but in all cases, has been unable to find the glpk.
The glpsol solver, which uses GLPK is installed though, as it shows the version of which it is currently running: GLPSOL: GLPK LP/MIP Solver, v4.62
Figured it out! hmatrix-glpk had the extra directories for OS X in the .cabal file:
if os(OSX)
extra-lib-dirs: /usr/lib
extra-lib-dirs: /opt/local/lib/
include-dirs: /opt/local/include/
extra-lib-dirs: /usr/local/lib/
include-dirs: /usr/local/include/
if arch(i386)
cc-options: -arch i386
Copying this into the glpk-hs.cabal allows the installation to work.

Haskell cabal: C compiler cannot create executables

I'm trying to install ghc-mod for GHC 8.0.1 on windows/x64. When I try to install ghc-mod via cabal install ghc-mod I get an error saying my C compiler isn't working (it is using the c-compiler bundled with ghc).
Here is the output (of the second time I ran the command. Its basically what the first one says but reduced to the error message):
C:\Users\******>cabal install ghc-mod
Resolving dependencies...
Configuring old-time-1.1.0.3...
Failed to install old-time-1.1.0.3
Build log ( C:\Users\******\AppData\Roaming\cabal\logs\old-time-1.1.0.3.log ):
Configuring old-time-1.1.0.3...
bash.exe: warning: could not find /tmp, please create!
configure: WARNING: unrecognized options: --with-compiler
checking for gcc... C:\PROGRA~1\Haskell Platform\8.0.1\mingw\bin\gcc.exe
^ I think the error lies here, as you can see the file path is corrupted but I wasn't able to locate the cause for this
checking whether the C compiler works... no
configure: error: in `/cygdrive/c/Users/******/AppData/Local/Temp/cabal-tmp-6084/old-time-1.1.0.3':
configure: error: C compiler cannot create executables
See `config.log' for more details
cabal: Leaving directory 'C:\Users\******\AppData\Local\Temp\cabal-tmp-6084\old-time-1.1.0.3'
cabal: Error: some packages failed to install:
cpphs-1.20.2 depends on old-time-1.1.0.3 which failed to install.
ghc-mod-5.6.0.0 depends on old-time-1.1.0.3 which failed to install.
haskell-src-exts-1.17.1 depends on old-time-1.1.0.3 which failed to install.
hlint-1.9.35 depends on old-time-1.1.0.3 which failed to install.
old-time-1.1.0.3 failed during the configure step. The exception was:
ExitFailure 77
Could you please help me to install ghc-mod or provide any other way of installing it.
I already trieded reinstalling Haskell since I'm just starting off but this didn't make any difference.
And YES I added the 3 lines provided on the haskell homepage.
I can't know for certain, but thought I'd write an answer with what I think is going on.
The old-time package contains a configure script, which is a Unix shell script used to (surprise!) configure the package. The Cabal build system allows packages to automatically integrate configure, and will run the script for them. On POSIX systems, there's always a shell easily available. However, on Windows, that's not the case. I believe that's the problem you're running into.
Now the tricky part: why don't you have a shell? In theory, the Haskell Platform ships a shell. Well, here are my guesses:
For Stack usage, there's a Haskell Platform bug where Stack cannot find the MSYS tools, which include the shell script. Newer versions of Stack work around this bug, but passing in --no-system-ghc tells Stack to ignore any installed toolchain and manage the installation itself, which is more reliable than using HP's copy.
For Cabal usage, I'm less certain. I think the HP team decided to require you to use a special batch program to set environment variables correctly, so if you just run cabal install foo from a normal command window, Cabal won't find MSYS and it will fail. However, without more information, I can't be certain this is the case.
My personal recommendation: uninstall Haskell Platform, and use the recommended Stack installation instructions. In your case, that's just downloading and running the 64-bit Windows installer.
Finally: your suspected problem is not actually a problem; on Windows, pathnames longer than 8 characters can be compressed in the way you see (with ~1 at the end). There's nothing buggy in that path display.

Qt Creator compile error "cannot find -lGL". Other solutions are not working

I have installed QT5 that also comes with QT creator on an amd machine running ubuntu 12.04. My grapics driver is a radeon r9270x if that matters.
When I try to compile a basic "hello world" type Qt program I get the error message "cannot find -lGL". I have searched around and here( Qt: can't find -lGL error ) it says to use "sudo apt-get install libgl1-mesa-dev" but when I do I already have that installed. Here ( Installing Qt on linux, cannot find -lGL ) it says to install "sudo apt-get install libgl-dev" but that only gets me
"Reading package lists... Done Building dependency tree Reading
state information... Done Package libgl-dev is a virtual package
provided by: libgl1-mesa-swx11-dev 8.0.4-0ubuntu0.7
libgl1-mesa-dev-lts-trusty 10.1.3-0ubuntu0.1~precise1
libgl1-mesa-dev-lts-saucy 9.2.1-1ubuntu3~precise1
libgl1-mesa-dev-lts-raring 9.1.7-1ubuntu2~precise1
libgl1-mesa-dev-lts-quantal 9.0.3-0ubuntu0.4~precise1
libgl1-mesa-dev 8.0.4-0ubuntu0.7 You should explicitly select one to
install.
E: Package 'libgl-dev' has no installation candidate"
Various other resources that I have used say to do similar things but I get this error still. Any ideas?
As a side not, not knowing the relevance, I could not get QT creator to launch for the longest time. It would always seg fault and core dump. I finally updated my amd catylist control center/video drivers and that fixed the problem.
Here is the compile output from qt creator:
02:34:21: Running steps for project myHelloWorld... 02:34:21:
Configuration unchanged, skipping qmake step. 02:34:21: Starting:
"/usr/bin/make" g++
-Wl,-rpath,/media/UsbExternalDrive/DesignTools/Qt5.3/5.3/gcc_64 -Wl,-rpath,/media/UsbExternalDrive/DesignTools/Qt5.3/5.3/gcc_64/lib -o myHelloWorld main.o
-L/media/UsbExternalDrive/DesignTools/Qt5.3/5.3/gcc_64/lib -lQt5Widgets -lQt5Gui -lQt5Core -lGL -lpthread /usr/bin/ld: cannot find -lGL collect2: ld returned 1 exit status make: *** [myHelloWorld]
Error 1 02:34:21: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project myHelloWorld (kit: Desktop Qt
5.3 GCC 64bit) When executing step "Make" 02:34:21: Elapsed time: 00:00.
Try running this, restart Qt creator and try a clean build.
sudo apt-get install mesa-common-dev
EDIT:
Could be that you just miss Mesa package. Take a look at XCB dependencies listed here and install what’s missing.
I’ve seen this error also mentioned in a different case, but I don’t remember the solution there. I think I had solved the problem by installing the “libglu1-mesa-dev” package.
sudo apt-get install libglu1-mesa-dev -y
But I am not entirely sure if just this had fixed the issue or I had to install anything else.
So what I found worked for me, I manual added the path to the library and compiled. Then I was able to remove the manually added path. I assume somewhere on the backend it was not searching the correct place and once it was shown it remembered and kept the correct location.

haskell snap exitfailure 1

I am new to Haskell, and wanted to play around with snap framework. Unfortunately I just cant get the thing to compile. I've tried (all I know too), updating cabal and running sudo ghc-pkg recache but I still get the following when I run cabal install snap. Please help.
12 warnings and 1 error generated.
Failed to install binary-0.7.1.0
cabal: Error: some packages failed to install:
SHA-1.6.4 depends on binary-0.7.1.0 which faile
d to install.
binary-0.7.1.0 failed during the building phase
. The exception was:
ExitFailure 1
pwstore-fast-2.4.1 depends on binary-0.7.1.0 wh
ich failed to install.
snap-0.13.2.2 depends on binary-0.7.1.0 which f
ailed to install.
Solution:
I first install the 'real' gcc via homebrew like so:
brew update
brew install gcc47
This took a while to install (as in over an hour). Once it was done I updated the GHC settings to use the copy of gcc installed by homebrew.
GHC settings are located either here :
/Library/Frameworks/GHC.framework/Versions/Current/usr/lib/ghc-7.6.3/settings
or here if you installed ghc with homebrew (I did not).
/usr/local/Cellar/ghc/7.6.3/lib/ghc-7.6.3/settings
Update the line
("C compiler command", "/usr/bin/gcc")
to
("C compiler command", "/usr/local/Cellar/gcc47/4.7.3/bin/gcc-4.7")
Then just run
cabal update && cabal install snap
and all should be well. :)
Your problem is that the binary package has some C preprocessor constructs that are not strictly valid.
After looking around a bit, I found a similar problem somebody had when installing the Haskell platform. It seems the core issue is that the Clang C preprocessor is stricter than the GCC one most Haskellers use. I'm assuming that this is your problem: you're using Clang rather than GCC. If you're on OS X, this is the default choice.
The easiest solution seems to be to switch to using GCC for the preprocessing. Note that on OS X, /usr/bin/gcc actually points to Clang! You will need to point GHC to an actual install of GCC.
You can do this by editing GHC's configuration file. On my system it's found at
/usr/local/lib/ghc-7.6.3/settings
Yours is probably somewhere similar, although I'm on Linux rather than OS X. In the file, change
("C compiler command", "/usr/bin/gcc")
to point to an actual copy of gcc rather than Clang and try installing again.
In the long run, this feels like a bug with the package and probably needs to be addressed, although I don't really know enough about the issue or constraints package authors have to be sure.

Unable to install yesod-bin

I'm updating my yesod framework to the latest yesod 1.2 version. I've installed yesod-platform (painfully....had to manually delete old dependency....cabal hell), now I need to install yesod-bin and it should be done. However, after sudo cabal install yesod-bin I'm getting the following error.
Building yesod-bin-1.2.0...
Preprocessing executable 'yesod-ld-wrapper' for yesod-bin-1.2.0...
[1 of 1] Compiling Main ( ghcwrapper.hs, dist/build/yesod-ld-wrapper/yesod-ld-wrapper-tmp/Main.o )
Linking dist/build/yesod-ld-wrapper/yesod-ld-wrapper ...
/usr/bin/ld: cannot find -lHStar-0.4.0.1
/usr/bin/ld: cannot find -lHSoptparse-applicative-0.5.2.1
/usr/bin/ld: cannot find -lHSghc-paths-0.1.0.9
/usr/bin/ld: cannot find -lHSfsnotify-0.0.6
/usr/bin/ld: cannot find -lHShinotify-0.3.5
collect2: ld returned 1 exit status
Failed to install yesod-bin-1.2.0
cabal: Error: some packages failed to install:
yesod-bin-1.2.0 failed during the building phase. The exception was:
ExitFailure 1
According to this, I feel it may have something to do with privileges I'm not sure.
EDIT: So I only found the following two libraries.
/usr/lib/haskell-packages/ghc/lib/tar-0.3.2.0/ghc-7.4.1/libHStar-0.3.2.0.a
/usr/lib/haskell-packages/ghc/lib/ghc-paths-0.1.0.8/ghc-7.4.1/libHSghc-paths-0.1.0.8.a
I'm trying to update libghc-tar-dev to the newest version 0.4.0.1. However, 0.3.2.0 is the newest version on apt-get what are my options?
First, I'd check to see if you have the libraries libHStar, libHSoptparse-applicative, libHSghc-paths, libHSfsnotify and libHShinotify. If you installed the haskell platform using your distro's package manager, I suspect you'll find those libraries in /usr/local/lib/ghc-*.*.*/. For example, you might search for the first library using this command:
sudo find /usr/local/lib -name 'libHStar*'
If you don't have those libraries, then I think you can get them by using your distro's package manager to install the following:
libghc-tar-dev
libghc-optparse-applicative-dev
libghc-ghc-paths-dev
libghc-fsnotify-dev
libghc-hinotify-dev
If you already have those libraries, then you could adapt the fix suggested in your link:
sudo chmod a+r /usr/local/lib/ghc-*/libHS*
UPDATE:
The standard recommendation seems to be that you should always use your linux distro's package manager to install stuff, rather than using the cabal command directly. And if a package you want isn't available yet on your distro, request it. This approach is the safest, because all of the dependencies have been sorted out for you. The disadvantage is that you won't usually have the latest release. I see that there is a yesod package on Ubuntu. I have no idea if it contains yesod-bin (I'm not familiar with yesod), but if it does, that's the safest approach. The downside is that you will probably have to wipe out your cabal library and start from scratch (re-install haskell-platform, then yesod).
Another option, which seems to be the road you're on, is to use your package manager to install the haskell-platform, but after that use the cabal command to install any haskell-y stuff. You'll still use your package manager to install things that can't be installed using cabal (e.g., non-haskell stuff). If you do this, you can avoid a lot of cabal hell by never running cabal as root, and never letting your package manager do anything that can be done using cabal. The main disadvantage of this approach is that you have to deal with library dependencies yourself, as you've discovered. If you want to continue down this road, you might be able to get everything you need by switching to some development/test build for Ubuntu. Or you may have to get the correct versions of the libraries you need and manually install them.

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