is there a GUI package that is still up-to-date?
I tried installing both wxHaskell and gtk2hs today and both fail on dependencies I just cannot solve (wxHaskell cannot find some wxWidget libs and while trying the glade tutorial gtk2hs fails on a missing pkg-config libglade2-0 I installed too).
I guess it's just some problem with me not understanding the linux/cabal/package install things good enough but is there a up-to-date tutorial how to get started (install) some GUI lib for Haskell somewhere around?
Here are the errors:
carsten#Carsten-VirtualBox:~$ cabal install glade
Resolving dependencies...
[1 of 2] Compiling SetupWrapper ( /tmp/glade-0.12.1-12934/glade-0.12.1/SetupWrapper.hs, /tmp/glade-0.12.1-12934/glade-0.12.1/dist/setup/SetupWrapper.o )
[2 of 2] Compiling Main ( /tmp/glade-0.12.1-12934/glade-0.12.1/Setup.hs, /tmp/glade-0.12.1-12934/glade-0.12.1/dist/setup/Main.o )
Linking /tmp/glade-0.12.1-12934/glade-0.12.1/dist/setup/setup ...
[1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o )
[2 of 2] Compiling Main ( SetupMain.hs, dist/setup-wrapper/Main.o )
Linking dist/setup-wrapper/setup ...
Configuring glade-0.12.1...
setup: The pkg-config package libglade-2.0 version >=2.0.0 is required but it
could not be found.
cabal: Error: some packages failed to install:
glade-0.12.1 failed during the configure step. The exception was:
ExitFailure 1
and
carsten#Carsten-VirtualBox:~$ cabal install wxc
Resolving dependencies...
[1 of 1] Compiling Main ( /tmp/wxc-0.90.0.4-13078/wxc-0.90.0.4/Setup.hs, /tmp/wxc-0.90.0.4-13078/wxc-0.90.0.4/dist/setup/Main.o )
Linking /tmp/wxc-0.90.0.4-13078/wxc-0.90.0.4/dist/setup/setup ...
Configuring wxc-0.90.0.4...
Warning: No config found to match: /usr/bin/wx-config --version=2.9 --version-full
in /usr/lib/x86_64-linux-gnu/wx/config
If you require this configuration, please install the desired
library build. If this is part of an automated configuration
test and no other errors occur, you may safely ignore it.
You may use wx-config --list to see all configs available in
the default prefix.
setup: failed
cabal: Error: some packages failed to install:
wxc-0.90.0.4 failed during the configure step. The exception was:
ExitFailure 1
This is really frustrating me - maybe someone can help me here - thank you!
I am running 12.04 and everything works fine for me.
Are you sure you have libglade2-dev installed ? That should fix it.
Coming from ArchLinux i had the same problem at first when i didn't know there were separate dev libraries, i don't remember having to do this in arch.
Related
How can Haskell be compiled to Javascript using GHCJS and Haskell Stack?
I have the current version of Haksell Stack 1.5.1.
I can initialize a GHCJS project with this command: stack new ghcjsSetup ghcjs
Once in the project directory I try following the Stack documentation for GHCJS.
I create a stack.yaml file and edit it to match the example from the documentation so that is looks like this.
resolver: lts-7.19
compiler: ghcjs-0.2.1.9007019_ghc-8.0.1
compiler-check: match-exact
setup-info:
ghcjs:
source:
ghcjs-0.2.1.9007019_ghc-8.0.1:
url: http://ghcjs.tolysz.org/ghc-8.0-2017-02-05-lts-7.19-9007019.tar.gz
sha1: d2cfc25f9cda32a25a87d9af68891b2186ee52f9
Following the documentation further I try to install and boot GHCJS with this command:
stack setup
This command produces an output which ends with an error.
Preparing to install GHCJS to an isolated location.
This will not interfere with any system-level installation.
Preparing to download ghcjs-0.2.1.9007019_ghc-8.0.1 ...
Already downloaded.
Unpacking GHCJS into /home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/ ...
Setting up GHCJS build environment
Installing GHCJS (this will take a long time) ...
ghcjs-0.2.1.9007019: configure (lib + exe)
Package ghcjs uses a custom Cabal build, but does not use a custom-setup stanza
Using the explicit setup deps approach based on configuration
Strongly recommend fixing the package's cabal file
[1 of 2] Compiling Main ( /home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/Setup.hs, /home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/.stack-work/dist/x86_64-linux/Cabal-1.24.0.0/setup/Main.o )
[2 of 2] Compiling StackSetupShim ( /home/u/.stack/setup-exe-src/setup-shim-mPHDZzAJ.hs, /home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/.stack-work/dist/x86_64-linux/Cabal-1.24.0.0/setup/StackSetupShim.o )
Linking /home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/.stack-work/dist/x86_64-linux/Cabal-1.24.0.0/setup/setup ...
Configuring ghcjs-0.2.1.9007019...
ghcjs-0.2.1.9007019: build (lib + exe)
Preprocessing library ghcjs-0.2.1.9007019...
/home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/src/Compiler/JMacro/Base.hs:1:55: warning:
-XOverlappingInstances is deprecated: instead use per-instance pragmas OVERLAPPING/OVERLAPPABLE/OVERLAPS
/home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/src/Compiler/JMacro/QQ.hs:1:55: warning:
-XOverlappingInstances is deprecated: instead use per-instance pragmas OVERLAPPING/OVERLAPPABLE/OVERLAPS
[ 1 of 50] Compiling GHCJS.Prim.TH.Serialized ( lib/ghcjs-prim/GHCJS/Prim/TH/Serialized.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/GHCJS/Prim/TH/Serialized.o )
Because it is too long to post here I have excluded the middle of the output. Which includes lots of warning messages.
[49 of 50] Compiling Compiler.Program ( src/Compiler/Program.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/Compiler/Program.o )
[50 of 50] Compiling GHCJS ( src/GHCJS.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/GHCJS.o )
Preprocessing executable 'ghcjs' for ghcjs-0.2.1.9007019...
[1 of 1] Compiling Main ( src-bin/Main.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/ghcjs/ghcjs-tmp/Main.o )
Linking .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/ghcjs/ghcjs ...
Preprocessing executable 'ghcjs-boot' for ghcjs-0.2.1.9007019...
[1 of 1] Compiling Main ( src-bin/Boot.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/ghcjs-boot/ghcjs-boot-tmp/Main.o )
/home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/src-bin/Boot.hs:690:1: warning: [-Wtabs]
Tab character found here, and in three further locations.
Please use spaces instead.
Linking .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/ghcjs-boot/ghcjs-boot ...
Preprocessing executable 'ghcjs-pkg' for ghcjs-0.2.1.9007019...
[1 of 1] Compiling Main ( src-bin/Pkg.hs, .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/ghcjs-pkg/ghcjs-pkg-tmp/Main.o )
Linking .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/ghcjs-pkg/ghcjs-pkg ...
/usr/bin/ld: cannot find -ltinfo
collect2: error: ld returned 1 exit status
`gcc' failed in phase `Linker'. (Exit code: 1)
-- While building package ghcjs-0.2.1.9007019 using:
/home/u/.stack/programs/x86_64-linux/ghcjs-0.2.1.9007019_ghc-8.0.1/src/.stack-work/dist/x86_64-linux/Cabal-1.24.0.0/setup/setup --builddir=.stack-work/dist/x86_64-linux/Cabal-1.24.0.0 build lib:ghcjs exe:ghcjs exe:ghcjs-boot exe:ghcjs-pkg exe:ghcjs-run exe:haddock-ghcjs exe:hsc2hs-ghcjs --ghc-options " -ddump-hi -ddump-to-file"
Process exited with code: ExitFailure 1
"Linking .stack-work/dist/x86_64-linux/Cabal-1.24.0.0/build/ghcjs-pkg/ghcjs-pkg ...
/usr/bin/ld: cannot find -ltinfo"
You are missing the libtinfo library which is part of ncurses. Depending on your environment try something like:
sudo apt-get install libtinfo-dev
As an aside, getting all the pieces that ghcjs needs to build successfully is tricky and not well documented as of September 2018. One might hope that as the project matures it will get easier to install, and that a binary package will be produced. Know that you are not the only person who has these issues. It takes some patience and trial-and-error to get ghcjs working right now.
Others have had success using nix, I did not.
I use Haskell Stack in Windows 10
When I try to install gtk as dependency of my own package, I got following messages.
glib-0.13.2.2: configure
glib-0.13.2.2: build
Progress: 1/5
-- While building package glib-0.13.2.2 using:
C:\Users\junyoung\AppData\Local\Temp\stack6012\glib-0.13.2.2\.stack-work\dist\2672c1f3\setup\setup --builddir=.stack-work\dist\2672c1f3 build --ghc-options " -ddump-hi -ddump-to-file"
Process exited with code: ExitFailure 1
Logs have been written to: C:\Users\junyoung\Documents\HaskellProject\StackProject\Hotepad\.stack-work\logs\glib-0.13.2.2.log
[1 of 2] Compiling SetupWrapper ( SetupWrapper.hs, C:\Users\junyoung\AppData\Local\Temp\stack6012\glib-0.13.2.2\.stack-work\dist\2672c1f3\setup\SetupWrapper.o )
[2 of 2] Compiling Main ( C:\Users\junyoung\AppData\Local\Temp\stack6012\glib-0.13.2.2\Setup.hs, C:\Users\junyoung\AppData\Local\Temp\stack6012\glib-0.13.2.2\.stack-work\dist\2672c1f3\setup\Main.o )
Linking C:\Users\junyoung\AppData\Local\Temp\stack6012\glib-0.13.2.2\.stack-work\dist\2672c1f3\setup\setup.exe ...
[1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist\setup-wrapper\Gtk2HsSetup.o )
[2 of 2] Compiling Main ( SetupMain.hs, dist\setup-wrapper\Main.o )
Linking dist/setup-wrapper\setup.exe ...
Configuring glib-0.13.2.2...
Building glib-0.13.2.2...
Preprocessing library glib-0.13.2.2...
.stack-work\dist\2672c1f3\build\System\Glib\StoreValue_hsc_utils.o:StoreValue_hsc_utils.c:(.text+0x0): multiple definition of `__debugbreak'
.stack-work\dist\2672c1f3\build\System\Glib\StoreValue_hsc_make.o:StoreValue_hsc_make.c:(.text+0x0): first defined here
collect2.exe: error: ld returned 1 exit status
linking .stack-work\dist\2672c1f3\build\System\Glib\StoreValue_hsc_make.o failed (exit code 1)
command was: C:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\mingw\bin\gcc.exe .stack-work\dist\2672c1f3\build\System\Glib\StoreValue_hsc_make.o .stack-work\dist\2672c1f3\build\System\Glib\StoreValue_hsc_utils.o -o .stack-work\dist\2672c1f3\build\System\Glib\StoreValue_hsc_make.exe -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\msys2-20150512\mingw64\lib -LC:/msys64/mingw64/lib -lgobject-2.0 -lglib-2.0 -lintl -LC:\Users\junyoung\AppData\Roaming\stack\snapshots\f21484d8\lib\x86_64-windows-ghc-7.10.3\utf8-string-1.0.1.1-L8eKHa7Iv9q7FVKUYW6u4b -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\msys2-20150512\mingw64\lib -LC:\Users\junyoung\AppData\Roaming\stack\snapshots\64a043b0\lib\x86_64-windows-ghc-7.10.3\text-1.2.2.1-HmqVQnZSpjaC156ABqPhne -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\msys2-20150512\mingw64\lib -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\binar_3uXFWMoAGBg0xKP9MHKRwi -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\conta_2C3ZI8RgPO2LBMidXKTvIU -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\bytes_6VWy06pWzJq9evDvK2d4w6 -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\deeps_6vMKxt5sPFR0XsbRWvvq59 -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\array_67iodizgJQIIxYVTp4emlA -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\base_HQfYBxpPvuw8OunzQu6JGM -lwsock32 -luser32 -lshell32 -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\integ_2aU3IZNMF9a7mQ0OzsZ0dS -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib\ghcpr_8TmvWUcS1U1IKHT0levwg3 -LC:\Users\junyoung\AppData\Local\Programs\stack\x86_64-windows\ghc-7.10.3\lib/rts -lm -lwsock32 -lgdi32 -lwinmm
I found that this messages is because of glib.cabal files bug at glib-0.13.2.2, so when I try to install glib separately, I edit glib.cabal (remove -D___attribute__(A)= option on cpp) and install clearly.
However, when I try to install it using stack, stack install gtk command always takes Hackage one instead of installed glib package.
For short, therefore, my question is, how can I using separately installed glib? Or, is there any way to modify packages .cabal file while installing it, using options or whatever?
Stack lets you use a dependency from a local directory, or a github repo. So feel free to fork the project, do the fixes, maybe even do a PR, and then put this into your stack.yaml under "packages" section:
- location:
git: https://github.com/user/repo
commit: a1b3559090e9c75ce1d46969085fe4f918b2fa82
When I try to
cabal install ihaskell-diagrams
I get the error
The pkg-config package 'glib-2.0' is required but it could not be
found.
What is glib and how do I install it so that it is available for Cabal?
Resolving dependencies...
Configuring cairo-0.13.1.0...
Configuring glib-0.13.2.1...
Failed to install cairo-0.13.1.0
Build log ( /Users/Rax/.cabal/logs/cairo-0.13.1.0.log ):
[1 of 2] Compiling SetupWrapper ( /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57646/cairo-0.13.1.0/SetupWrapper.hs, /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57646/cairo-0.13.1.0/dist/setup/SetupWrapper.o )
[2 of 2] Compiling Main ( /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57646/cairo-0.13.1.0/dist/setup/setup.hs, /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57646/cairo-0.13.1.0/dist/setup/Main.o )
Linking /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57646/cairo-0.13.1.0/dist/setup/setup ...
[1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o )
[2 of 2] Compiling Main ( SetupMain.hs, dist/setup-wrapper/Main.o )
Linking dist/setup-wrapper/setup ...
Configuring cairo-0.13.1.0...
setup: The pkg-config package 'cairo' version >=1.2.0 is required but it could
not be found.
Failed to install glib-0.13.2.1
Build log ( /Users/Rax/.cabal/logs/glib-0.13.2.1.log ):
[1 of 2] Compiling SetupWrapper ( /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57647/glib-0.13.2.1/SetupWrapper.hs, /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57647/glib-0.13.2.1/dist/setup/SetupWrapper.o )
[2 of 2] Compiling Main ( /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57647/glib-0.13.2.1/dist/setup/setup.hs, /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57647/glib-0.13.2.1/dist/setup/Main.o )
Linking /var/folders/b6/3rk65h797p7407x7d36sqn9c0000gn/T/cabal-tmp-57647/glib-0.13.2.1/dist/setup/setup ...
[1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o )
[2 of 2] Compiling Main ( SetupMain.hs, dist/setup-wrapper/Main.o )
Linking dist/setup-wrapper/setup ...
Configuring glib-0.13.2.1...
setup: The pkg-config package 'glib-2.0' is required but it could not be
found.
cabal: Error: some packages failed to install:
cairo-0.13.1.0 failed during the configure step. The exception was:
ExitFailure 1
diagrams-cairo-1.3.0.5 depends on glib-0.13.2.1 which failed to install.
glib-0.13.2.1 failed during the configure step. The exception was:
ExitFailure 1
ihaskell-diagrams-0.3.1.0 depends on glib-0.13.2.1 which failed to install.
pango-0.13.1.0 depends on glib-0.13.2.1 which failed to install.
The confusion here results from the perhaps unclear error message: the missing components are not Cabal packages, but libraries that need to be separately installed.
Some of these libraries have their own dependencies, or installing them may reveal additional missing packages, so that the specific requirements on your system my be different; but in general, when you get an error that a "pig-config package" is missing, you will need to install it with your package manager (not Cabal).
For example,
brew install glib
brew install cairo
brew install pango
work for me and allow me to
cabal install ihaskell-diagrams
without further errors.
I'm trying to install PureScript on Ubuntu 14.04. I have the latest version of Haskell-Platform and have run cabal update. During cabal install purescript I get an error saying that the module System.IO.UTF8 is not found. Googling reveals that this is part of utf8-string and should be one of the exposed modules when that package is installed.
However, when I install it, no such package is available:
ely#eschaton:~$ cabal update
Downloading the latest package list from hackage.haskell.org
ely#eschaton:~$ cabal --reinstall install utf8-string
Resolving dependencies...
In order, the following will be installed:
utf8-string-1 (reinstall)
Warning: Note that reinstalls are always dangerous. Continuing anyway...
Configuring utf8-string-1...
Building utf8-string-1...
Preprocessing library utf8-string-1...
[1 of 5] Compiling Codec.Binary.UTF8.String ( Codec/Binary/UTF8/String.hs, dist/build/Codec/Binary/UTF8/String.o )
[2 of 5] Compiling Codec.Binary.UTF8.Generic ( Codec/Binary/UTF8/Generic.hs, dist/build/Codec/Binary/UTF8/Generic.o )
[3 of 5] Compiling Data.String.UTF8 ( Data/String/UTF8.hs, dist/build/Data/String/UTF8.o )
[4 of 5] Compiling Data.ByteString.UTF8 ( Data/ByteString/UTF8.hs, dist/build/Data/ByteString/UTF8.o )
[5 of 5] Compiling Data.ByteString.Lazy.UTF8 ( Data/ByteString/Lazy/UTF8.hs, dist/build/Data/ByteString/Lazy/UTF8.o )
In-place registering utf8-string-1...
Installing library in /home/ely/.cabal/lib/utf8-string-1/ghc-7.6.3
Registering utf8-string-1...
Installed utf8-string-1
ely#eschaton:~$ ghci
GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> import System.IO.UTF8
<no location info>:
Could not find module `System.IO.UTF8'
It is not a module in the current program, or in any known package.
You can see that only 5 of the stated proposed libraries are compiled.
The PureScript source definitely makes use of System.IO.UTF8.
But System.IO.UTF8 looks like a pretty old package that has not undergone changes in a long time (2+ years), so it's unlikely that this was a significant change in a recent version. To boot, PureScript is very new, and so would surely be based on newer versions of utf8-string if they were available.
So the question is: why isn't PureScript able to install this dependency on its own ... and why does the cabal installation of utf8-string fail to expose the System.IO.UTF8 module as it suggests it should.
Looks like utf-string was updated today (Jan 23) to version 1 which doesn't have System.IO.UTF8 module anymore. That one is present in previous version 0.3.8 of utf-string.
And the purescript doesn't specify the upper bound for utf-string.
EDIT I made a PR to workaround the issue.
There is more proper fix WIP too.
I've installed gtk2hs-buildtools with no problem, but here's the output when I try to install gtk using 'cabal install gtk':
[gautam#gautam ~]$ cabal install gtk
Resolving dependencies...
[1 of 2] Compiling SetupWrapper ( /tmp/cairo-0.12.213784/cairo-0.12.2/SetupWrapper.hs, /tmp/cairo-0.12.213784/cairo-0.12.2/dist/setup/SetupWrapper.o )
[2 of 2] Compiling Main ( /tmp/cairo-0.12.213784/cairo-0.12.2/Setup.hs, /tmp/cairo-0.12.213784/cairo-0.12.2/dist/setup/Main.o )
Linking /tmp/cairo-0.12.213784/cairo-0.12.2/dist/setup/setup ...
[1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o )
[2 of 2] Compiling Main ( SetupMain.hs, dist/setup-wrapper/Main.o )
Linking dist/setup-wrapper/setup ...
Cannot find gtk2hsC2hs
Please install `gtk2hs-buildtools` first and check that the install directory is in your PATH (e.g. HOME/.cabal/bin).
[1 of 2] Compiling SetupWrapper ( /tmp/glib-0.12.213784/glib-0.12.2/SetupWrapper.hs, /tmp/glib-0.12.213784/glib-0.12.2/dist/setup/SetupWrapper.o )
[2 of 2] Compiling Main ( /tmp/glib-0.12.213784/glib-0.12.2/Setup.hs, /tmp/glib-0.12.213784/glib-0.12.2/dist/setup/Main.o )
Linking /tmp/glib-0.12.213784/glib-0.12.2/dist/setup/setup ...
[1 of 2] Compiling Gtk2HsSetup ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o )
[2 of 2] Compiling Main ( SetupMain.hs, dist/setup-wrapper/Main.o )
Linking dist/setup-wrapper/setup ...
Cannot find gtk2hsC2hs
Please install `gtk2hs-buildtools` first and check that the install directory is in your PATH (e.g. HOME/.cabal/bin).
cabal: Error: some packages failed to install:
cairo-0.12.2 failed during the configure step. The exception was:
ExitFailure 1
gio-0.12.2 depends on glib-0.12.2 which failed to install.
glib-0.12.2 failed during the configure step. The exception was:
ExitFailure 1
gtk-0.12.2 depends on glib-0.12.2 which failed to install.
pango-0.12.2 depends on glib-0.12.2 which failed to install.
[gautam#gautam ~]$
This problem occurs on both my Mac and in my Fedora VM. Does anybody know how to fix this? Thanks!
You need to add the path in which the Gtk2Hs build tools are stored to your $PATH environment variable, so that the build process can find them. On Linux, it's $HOME/.cabal/bin. On OS X, it's $HOME/Library/Haskell/bin (although that might just be if you're using the Haskell Platform — if that doesn't work, try $HOME/.cabal/bin).
To add a directory to your $PATH, run export PATH=directory:$PATH. You should probably add this to your shell's startup file (it depends on your shell and OS — probably either ~/.bashrc, ~/.profile or ~/.bash_profile). (You'll need to do so if you want to run any programs you install with cabal directly, anyway.)