fatal error: 'apr.h' file not found when installing x-sendfile mac os x mountain lion server
apache, apr, fatal-error, osx-mountain-lion, x-sendfile
Solution
You need to re-install the Xcode command line tools:
xcode-select --install
You'll then likely need to accept the Xcode license agreement again:
sudo xcodebuild -license
Once you've done that (as well as your symlink for the toolchain) you should be good to go.
Problem
When I upgraded my Lion Server to Mountain Lion, it seems that it removed my mod_xsendfile from apache. I followed the instructions from this web site, but got stuck with a "No such file or directory" error. With some help from google i found this page that gave me the solution to this: "sudo ln -s /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/ /Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.8.xctoolchain" Looked good, but when I try to run "sudo apxs -cia mod_xsendfile.c" I get a "fatal error: 'apr.h' file not found" error. Any ideas?