[Nix-dev] Cabal in nix environment producing different binaries

[Mateusz Kowalczyk]

On 09/09/2014 06:41 PM, Richard Wallace wrote:
> Hello again,
> 
> I got my nix environment all setup for building our Haskell app and went to
> deploy it to a development box this morning, only to find out that it
> wouldn't run.  After doing some inspection, it seems that the binary
> produced in the the nix environment is radically different than out of the
> nix environment.
> 
> When building outside the nix environment with cabal sandboxes, the binary
> is 40M. When building in the nix environment the binary is only 14M.  I
> also see slightly different shared libraries linked to.  When building with
> cabal I see
> 
> linux-vdso.so.1 (0x00007fffc23f4000)
> libz.so.1 => /usr/lib/libz.so.1 (0x00007fccc0f4d000)
> librt.so.1 => /usr/lib/librt.so.1 (0x00007fccc0d45000)
> libutil.so.1 => /usr/lib/libutil.so.1 (0x00007fccc0b42000)
> libdl.so.2 => /usr/lib/libdl.so.2 (0x00007fccc093e000)
> libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007fccc0720000)
> libgmp.so.10 => /usr/lib/libgmp.so.10 (0x00007fccc04a9000)
> libm.so.6 => /usr/lib/libm.so.6 (0x00007fccc01a5000)
> libffi.so.6 => /usr/lib/libffi.so.6 (0x00007fccbff9d000)
> libc.so.6 => /usr/lib/libc.so.6 (0x00007fccbfbef000)
> /lib64/ld-linux-x86-64.so.2 (0x00007fccc1163000)
> 
> When building in the nix environment, the libffi link is missing.
> 
> My goal here is to be able to build a binary locally in nix and move it
> over to a machine that doesn't have nix installed.  Is that going to be
> possible?
> 
> Thanks for all the help,
> Rich
> 
> 
> 
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Recent thread archived at [1] may be of interest to you.

[1]: http://lists.science.uu.nl/pipermail/nix-dev/2014-July/013602.html

-- 
Mateusz K.