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gcc can't find compatible ISL #44444

Closed apaszke closed 8 years ago

apaszke commented 9 years ago

Today I tried to install gcc, which failed with message: configure: error: Unable to find a usable ISL. See config.log for details.. I had ISL v0.14 installed (and as far as I can see this is the default version that is installed with brew install isl).

The fix was quite simple - I had to tap homebrew/versions and install isl012. Can't this be included into gcc formula somehow?

bfontaine commented 9 years ago

Could you please post the output of brew gist-logs gcc? Thanks!

DomT4 commented 9 years ago

We saw this failure message when someone hadn't installed the Command Line Tools on OS X 10.11 the other day. Not sure if the situation/config is similar here? The core isl hasn't been updated since May and was compatible then. The only recent change is the addition of the El Cap bottle in https://github.com/Homebrew/homebrew/commit/38a182b8c559d33c2d7af6c049fe7a983e6302ea.

apaszke commented 9 years ago

I had Command Line Tools installed earlier and I rerun the installation, but as far as I remember it wasn't enough to make it work.

The gist is available at: https://gist.github.com/anonymous/45007ef3f6bbd6b68d59

apaszke commented 9 years ago

But it's probably holding only the latest log, which has succeeded

DomT4 commented 9 years ago

44486 may fix this.

kjhollen commented 9 years ago

Encountered this today, too, on Yosemite. Here's my brew gist-logs gcc: https://gist.github.com/anonymous/11ba87cc932b253ecd0c

The last bit said I didn't have the developer tools installed, but I'm pretty sure I did install them to use git on the command line a few weeks ago (maybe I just hadn't updated them since the El Capitan beta came out). Reinstalling the dev tools again fixed the issue for me. Anyway, hope the log helps.

bogdan commented 8 years ago

Having the same issue on

Darwin worldwind 15.0.0 Darwin Kernel Version 15.0.0: Sat Sep 19 15:53:46 PDT 2015; root:xnu-3247.10.11~1/RELEASE_X86_64 x86_64

$ brew gist-logs gcc
couldn't understand kern.osversion `15.0.0'
https://gist.github.com/88ef06b7a692eee10c00

bfontaine commented 8 years ago

@bogdan Please don’t interrupt brew gist-logs gcc and post its output.

bogdan commented 8 years ago

@bfontaine thanks for your note, I thought it hangs forever. Updated my previous comment with full output.

audiofeature commented 8 years ago

Having the same problem. Can you tell the exact steps to solve this? How do I "tap homebrew/versions and install isl012"?

bogdan commented 8 years ago

I was able to fix with: xcode-select --install

audiofeature commented 8 years ago

Yes it worked now doing this before.