<div dir="ltr">I was able to compile Haskell for a mips-linux-musl target (<a href="https://onion.io/omega">https://onion.io/omega</a>). Most problems were due to the different architecture (MIPS) than musl. Once you have a C cross-compiler (I used <a href="http://crosstool-ng.org/">http://crosstool-ng.org/</a> to built the cross-compiler toolchain), compiling GHC as a cross compiler for that target and then a Haskell application shouldn't be a problem.<div><br></div><div>If you have enough disk space on the target, I would suggest that you compile your Haskell application into a static binary.</div><br><div class="gmail_quote"><div dir="ltr">On Sat, Apr 9, 2016 at 10:47 AM Lana Black <lanablack@amok.cc> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">You will probably have better luck using ghc with musl.<br>
<br>
Check out this thread: <a href="https://mail.haskell.org/pipermail/haskell-cafe/2015-May/119843.html" rel="noreferrer" target="_blank">https://mail.haskell.org/pipermail/haskell-cafe/2015-May/119843.html</a><br>
<br>
Original Message <br>
From: Patrick Pelletier<br>
Sent: Saturday, April 9, 2016 7:54 AM<br>
To: haskell-cafe<br>
Subject: [Haskell-cafe] Haskell on OpenWRT<br>
<br>
Has anyone had any success running Haskell programs on OpenWRT?<br>
<br>
Specifically, I'm running OpenWRT on x86_64, so processor architecture<br>
shouldn't be an issue. However, by default OpenWRT uses musl as its C<br>
library, so binaries from a "normal" Linux system wouldn't be compatible<br>
with OpenWRT.<br>
<br>
I attempted to get around this problem by building an OpenWRT image with<br>
glibc as the C library. In theory, that ought to solve the problem. In<br>
practice, my program (a simple hello-world type program, which runs fine<br>
on Ubuntu) hung, printing nothing, using nearly all of one core, and was<br>
unkillable by any signal other than SIGKILL. If left alone to run, it<br>
eventually used all available memory and then died.<br>
<br>
I took a look at ldd, to see if there were any clues there. On my<br>
Ubuntu 12.04 machine, where I compiled the program (using ghc 7.4.1), I get:<br>
<br>
ppelletier@patrick64:~/programming/haskell$ ldd contact<br>
linux-vdso.so.1 => (0x00007fff36f50000)<br>
libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10<br>
(0x00007f8d49cf8000)<br>
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6<br>
(0x00007f8d49af0000)<br>
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8d497f3000)<br>
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f8d495eb000)<br>
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f8d493e7000)<br>
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f8d49028000)<br>
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0<br>
(0x00007f8d48e0b000)<br>
/lib64/ld-linux-x86-64.so.2 (0x00007f8d49f8d000)<br>
<br>
On my OpenWRT (trunk) box, I get:<br>
<br>
root@OpenWrt:~# ldd /tmp/contact<br>
linux-vdso.so.1 (0x00007ffd2afcc000)<br>
libgmp.so.10 => /usr/lib/libgmp.so.10 (0x00007f27a057a000)<br>
libffi.so.6 => /usr/lib/libffi.so.6 (0x00007f27a0373000)<br>
libm.so.6 => /lib/libm.so.6 (0x00007f27a0080000)<br>
librt.so.1 => /lib/librt.so.1 (0x00007f279fe79000)<br>
libdl.so.2 => /lib/libdl.so.2 (0x00007f279fc76000)<br>
libc.so.6 => /lib/libc.so.6 (0x00007f279f906000)<br>
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f279f6f4000)<br>
libpthread.so.0 => /lib/libpthread.so.0 (0x00007f279f4d9000)<br>
/lib64/ld-linux-x86-64.so.2 (0x00007f27a07dc000)<br>
<br>
This is almost the same, except it has "libgcc_s.so.1", while on the<br>
Ubuntu box it does not.<br>
<br>
I'd welcome any ideas on how to solve (or at least diagnose) this<br>
problem. I'd also be interested in any thoughts on the broader question<br>
of running Haskell programs on OpenWRT.<br>
<br>
Thanks,<br>
<br>
--Patrick<br>
<br>
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</blockquote></div></div>