The TravisCI error is unrelated to this package.

On NixOS:

building path(s) ‘/nix/store/by0p2sxcxy0zjzza8kmjmvz82vdxigxv-iojs-1.8.1’
unpacking sources
unpacking source archive /nix/store/5bkdnby1bm1585q1bdr7saifkafj4bin-iojs-v1.8.1.tar.gz
source root is iojs-v1.8.1
patching sources
configuring
configure flags: --disable-static --prefix=/nix/store/by0p2sxcxy0zjzza8kmjmvz82vdxigxv-iojs-1.8.1 --shared-openssl --shared-http-parser --shared-zlib --shared-libuv 
Usage: configure [options]

configure: error: no such option: --disable-static
builder for ‘/nix/store/39cpn90kv55ahrbb0159qc1lm2hnf1y1-iojs-1.8.1.drv’ failed with exit code 2
error: build of ‘/nix/store/39cpn90kv55ahrbb0159qc1lm2hnf1y1-iojs-1.8.1.drv’ failed

@Havvy when running the update script you should also actually build the package, please. We have hard times trusting submitters otherwise.

Sorry, I was expecting that the build process wouldn't change in 12 days, and was building rustc yesterday. I'll build it in the future..

Now, I can't actually figure out where the configure flag is coming from. It's not in /pkgs/development/web/iojs/default.nix nor is it mentioned in the build's env-vars file, nor can I find any documentation about the flag being added by anything in stdenv.mkDerivation. Anybody know where that flag is coming from?

Note: In io.js 1.8.1, a --enable-static flag was added via this PR.

It's added by the stdenv. You can override the configurePhase.

Didn't need to override configrePhase since I found an undocumented switch (and documented it), but it was still failing, and I've giving up. I've filed #7907 if anybody else wants to tackle this.