If I start up a new project, add hfsevents to the list of dependencies in the .cabal file, and run stack build, I get an error (on Mac OSX Yosemite):
-- While building package hfsevents-0.1.6 using:
/Users/Me/.stack/setup-exe-cache/setup-Simple-Cabal-1.22.4.0-x86_64-osx-ghc-7.10.2 --builddir=.stack-work/dist/x86_64-osx/Cabal-1.22.4.0/ build --ghc-options -hpcdir .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/hpc/.hpc/ -ddump-hi -ddump-to-file
Process exited with code: ExitFailure 1
Logs have been written to: /Users/Me/Desktop/code/haskell/test/.stack-work/logs/hfsevents-0.1.6.log
Configuring hfsevents-0.1.6...
Building hfsevents-0.1.6...
Preprocessing library hfsevents-0.1.6...
[1 of 1] Compiling System.OSX.FSEvents ( System/OSX/FSEvents.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/build/System/OSX/FSEvents.o )
gcc: error: language objective-c not recognized
gcc: error: language objective-c not recognized
I already followed the advice of calling brew install gcc48 --with-all-languages and I uninstalled all Haskell versions, only using the ghc within stack. Xcode is on version 7.1.1. What else can I try to fix this problem?
Eventually got this working. The steps that led me to the solution are documented here: https://github.com/commercialhaskell/stack/issues/1563
Basically, I had two different gcc's installed, one in /usr/bin/ installed by Xcode and one in /usr/local/bin/ from somewhere I don't remember. /usr/bin/gcc was the one being used by cabal, so cabal install hfsevents worked, while /usr/local/bin/gcc, which was the one apparently being used by stack, had this issue. What I did to resolve this was delete /usr/local/bin/gcc and only keep /usr/bin/gcc.
Related
When I ran the command stack build language-plutus-core I received the following error:
-- While building custom Setup.hs for package cryptonite-openssl-0.7 using:
C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_2.4.0.1_ghc-8.6
.4.exe --builddir=.stack-work\dist\e626a42b configure --with-ghc=C:\Users...
Process exited with code: ExitFailure 1
Logs have been written to: C:\Projects\2019-08-07-Plutus\plutus-master\.stac
k-work\logs\cryptonite-openssl-0.7.log
Configuring cryptonite-openssl-0.7...
Cabal-simple_Z6RU0evB_2.4.0.1_ghc-8.6.4.exe: Missing dependencies on foreign libraries:
* Missing (or bad) C libraries: eay32, ssl32
This problem can usually be solved by installing the system packages that
provide these libraries (you may need the "-dev" versions). If the libraries are already installed but in a non-standard location then you can use the flags --extra-include-dirs= and --extra-lib-dirs= to specify where they are.
If the library files do exist, it may contain errors that are caught by the C compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.
Anyone any idea how to fix this? Do i need to install eay32, ssl32 separately?
Consider installing these packages using the bundled MSYS in your stack installation. First do stack exec bash to enter MSYS, then use the pacman in that MSYS environment.
The packages from the bundled pacman are from MinGW32, MinGW64 and MSYS2, so most of them (as far as I have used) should be prefixed with mingw-w64-i686- or mingw-w64-x86_64-. See the official documentation for msys2 for detailed information.
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.
I am trying to learn Haskell with Atom ide on windows 7. I can build a program with stack but not with cabal. I wouldn't care about this except that Atom uses cabal. When I enter the command 'cabal build' I get the following messages: "Package has never been configured. Configuring with default flags. If this fails please run configure manually." "cabal: The program 'ghc' version >=6.4 is required but it could not be found." I have ghc version 7.10.3 installed which is >=6.4. So I guess it can't find the ghc compiler. Could somebody please advise?
You can find out where stack installs ghc by running stack path --ghc-paths.
I've successfully created a ghc cross compiler, that allows me to compile haskell code for armv6h (raspberry pi in my case) from my x64 linux machine.
I've successfully run a hello world program on the raspberry.
No I want to build my real app, which has a lot of dependencies on other haskell modules.
When I compile for x64 I simply do
cabal install dependenciy1 depenency2 ...
I know I could make my own programm a cabal-project an automate this step. But that's not the point here.
When I try to use the cross-compiler
arm-unknown-linux-gnueabi-ghc --make myapp.hs
It tells me about modules it could not find. Of course, they are not installed!
I read https://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling
and according to that I tried
cabal --with-ghc=arm-unknown-linux-gnueabi-ghc --with-ghc-pkg=arm-unknown-linux-gnueabi-ghc-pkg --with-ld=arm-unknown-linux-gnueabi-ld install random
random is the depenency I'm trying to install here. I get the following error:
Resolving dependencies...
Configuring random-1.0.1.3...
Failed to install random-1.0.1.3
Last 10 lines of the build log ( /home/daniel/.cabal/logs/random-1.0.1.3.log ):
/home/daniel/.cabal/setup-exe-cache/setup-Cabal-1.18.1.3-arm-linux-ghc-7.8.3.20140804: /home/daniel/.cabal/setup-exe-cache/setup-Cabal-1.18.1.3-arm-linux-ghc-7.8.3.20140804: cannot execute binary file
cabal: Error: some packages failed to install:
random-1.0.1.3 failed during the configure step. The exception was:
ExitFailure 126
When I do
file /home/daniel/.cabal/setup-exe-cache/setup-Cabal-1.18.1.3-arm-linux-ghc-7.8.3.20140804
I get
/home/daniel/.cabal/setup-exe-cache/setup-Cabal-1.18.1.3-arm-linux-ghc-7.8.3.20140804: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 3.10.2, not stripped
No wonder it can't execute it. It's compiled for arm.
Am I missing something here?
My goal is to pull in all dependencies, then create a statically linked app that I can deploy on my raspberry.
To understand this error, you need to know how cabal install works internally. In essence, it will perform the following steps:
Download and unpack the source code
Compile Setup.hs (this file is used for customization of the build system, for example, you can implement some hooks to run additional haskell code in the configure phase).
Run setup configure <configure flags> && setup build && setup install
The problem is now that cabal install uses the GHC given by --with-ghc also for step 2, but the executable produced by that step must run on the host system!
A workaround is to do the steps manually, which means you have full control. First, get the source:
$ cabal get random
Downloading random-1.0.1.3...
Unpacking to random-1.0.1.3/
$ cd random-1.0.1.3
Then, compile Setup.hs, using the host ghc:
$ ghc ./Setup.hs -o setup
And finally, configure, build and install. As suggested by #Yuras in a comment, we also add the -x option for running hsc2hs:
$ ./setup configure ----with-ghc=arm-unknown-linux-gnueabi-ghc --with-ghc-pkg=arm-unknown-linux-gnueabi-ghc-pkg --with-ld=arm-unknown-linux-gnueabi-ld --hsc2hs-options=-x
$ ./setup build && ./setup install
There is already a cabal issue about this: https://github.com/haskell/cabal/issues/2085
I was trying to install wxHaskell into a machine running Windows XP64, with MinGW/MSYS and wxWidget 3.0 built from source using gcc. I did:
cabal install wx
and got an error:
...
Configuring wxc-0.90.0.4...
setup.exe: wx-config: does not exist
Failed to install wxc-0.90.0.4
cabal.exe: Error: some packages failed to install:
wx-0.90.0.1 depends on wxc-0.90.0.4 which failed to install.
wxc-0.90.0.4 failed during the configure step. The exception was:
ExitFailure 1
wxcore-0.90.0.3 depends on wxc-0.90.0.4 which failed to install.
I had successfully used wxWidgets to write an sample application in C++ (gcc). So I do have a working wxWidget installation. And I have wx-config at:
$ which wx-config
/usr/local/bin/wx-config
The problem is that wx-config is a unix shell script, and cabal (called from MSYS) somehow refuses to recognize it even if it's on the system path. If I run wx-config in MSYS, I get something like:
$ wx-config --cxxflags
-I/usr/local/lib/wx/include/msw-unicode-3.0 -I/usr/local/include/wx-3.0 -D_LARGE
FILE_SOURCE=unknown -DWXUSINGDLL -D__WXMSW__ -mthreads
I have asked a question https://stackoverflow.com/questions/21998763/how-to-convert-msys-shell-scripts-to-windows-exe-files to see if it's possible to convert the script to an exe, but no one responded with any solutions.
There is also a related question here, wxHaskell installation on windows , and another here wx 0.90.0.1 fails to install on Haskell Platform 2012.2.0.0 (WinXP). In fact, I couldn't found an answer that's confirmed to work. Also, the errors/settings here seem to be different, or the answers therein don't seem solve my problem. In particular, I downloaded an external wx-config.exe from https://sourceforge.net/projects/wxhaskell/files/wx-config-win/ per http://www.haskell.org/haskellwiki/WxHaskell/Windows. But running wx-config.exe can't recognize my wxWidget installation and always gives me an error about cannot find wxWidgets, like this:
$ ./wx-config.exe --prefix=/usr/local/
wx-config Error: wxWidgets hasn't been found installed at 'C:\MinGW\msys\1.0\loc
al'.
Please use the --prefix flag (as in wx-config --prefix=C:\wxWidgets)
or set the environment variable WXWIN (as in WXWIN=C:\wxWidgets)
to specify where is your installation of wxWidgets.
Any idea how to work around this issue?
Thanks,
-- Update --
#JP I tried:
C:\temp\wxdirect-0.90.0.1>runhaskell Setup configure --extra-lib-dirs=c:\MinGW\lib --extra-include-dirs=c:\MinGW\include --extra-include-dirs=c:\MinGW\msys\1.0\local\include
Configuring wxdirect-0.90.0.1...
and got
Setup: At least the following dependencies are missing:
containers >=0.2 && <0.5, strict -any
I tweaked wxdirect.cabal to bypass containers >=0.2 && <0.5, but can't get pass strict.
I've written a powershell script that automates the setup of MinGW and the downloading/building of wxWidgets in order to build wxHaskell for Windows 7.
https://github.com/cessationoftime/wxHaskell-Windows-Builder