Fix #536

[ghost]

No description provided.

[ferd]

Doesn't this also remove the flags from linux environments where it is available and could be relied on to build?

[ghost]

Yes, it does. This was introduced in 2.6.0 (6fca763):

Fix compiler invocation on multiarch Linux

This fixes port compilation for some configurations, notably this one:
Debian with 32-bit userspace, 64-bit kernel and 64-bit erlang packages.

Because the regex is too broad, it causes build errors. I don't know if we can fix it in the regex instead (and restore -m64 in LDFLAGS). What I do know is that 2.6.0 causes build errors with some toolchains.

/cc @liskin.

Slightly off-topic but related:
@ferd, I don't have access to OS X, but I wonder why #182 isn't an issue. I suppose the toolchain doesn't require extending it for newer versions anymore, as I doubt projects fix this in rebar.config for all OS X versions.

[ghost]

/cc @debalance @liskin

[ghost]

So, what do we do?

[liskin]

As I think I said elsewhere, I haven't used rebar (and Erlang) for months so I don't really care very much. If my changes cause trouble for people, I think it's fair that I just put those settings in my own rebar config.

[ghost]

@fred?