OSX 10.8 xcrun (No such file or directory)
gcc, macos, osx-mountain-lion, xcode, xcrun
Solution
Unfortunately, at least the last time I played with it, I found you really can't use `xcrun` with just the standalone `Command Line Tools` package. It apparently wasn't designed for that use case; the standalone package is a fairly recent innovation with Xcode 4. If the product you are trying to install really depends on `xcrun`, you may need to install the full `Xcode.app` distribution to get around it. That, or modify the distribution's Makefile et al to not use `xcrun`. Or, possibly (untested), create some directories and/or symlinks to fake `xcrun` into thinking you have `Xcode.app` installed - a messy hack.
Problem
When executing `gem install jekyll` on OSX 10.8 with the standalone Command Line Tools package from Apple's Developer site installed (no Xcode), i run into the following error: Building native extensions. This could take a while... ERROR: Error installing jekyll: ERROR: Failed to build gem native extension. … ``` xcrun cc -I. -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin12.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -arch i386 -arch x86_64 -g -Os -pipe -fno-common -DENABLE_DTRACE -fno-common -pipe -fno-common -c porter.c xcrun: Error: failed to exec real xcrun. (No such file or directory) ``` gcc is installed: ``` $ which cc /usr/bin/cc ``` the look-up path for xcrun is set: ``` xcode-select -print-path /usr/bin ``` yet no matter which arguments i try, xcrun will always return xcrun: Error: failed to exec real xcrun. (No such file or directory) `man xcrun` reads "When xcrun is invoked with the name xcrun , the flags -log and -verbose are useful debugging aids. The flag -no-cache can be used to bypass cache lookup." but none of this seems to have any effect: the only output remains the above… Solution: following Ned Deily's advice below, i've replaced xcrun with a shell script to simply call the given arguments: ``` #!/bin/bash $@ ```