MySQL 5.5.14 fails with "‘strnlen’ was not declared in this scope"

[orbiteleven]

Trying to install mysql 5.5 on OSX 10.7 and it fails with the following:

Installation output: https://gist.github.com/1123651
brew doctor: https://gist.github.com/1123655

[jacknagel]

I can't guarantee that this will solve your problem, but you probably need to install XCode 4.1 since you're using Lion--there are quite a few compatibility issues with 3.2.x on 10.7.

[adamv]

Xcode 4.1 is needed for Lion; older versions are not supported by Homebrew and don't work well in general.

[orbiteleven]

...and it is installed. As well as the Java Developer tools from Apple.

Do you see something that indicates it's not?

[adamv]

Xcode: 3.2.5 :

==> Environment
HOMEBREW_VERSION: 0.8
HEAD: 22027d5fee3acf69b9f4d58f062752f820b811eb
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_LIBRARY_PATH: /usr/local/Library/Homebrew
Hardware: quad-core 64-bit arrandale
OS X: 10.7
Kernel Architecture: x86_64
Ruby: 1.8.7-249
/usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
Xcode: 3.2.5
GCC-4.0: build 5494 
GCC-4.2: build 5664 
LLVM: build 2333 
MacPorts or Fink? false
X11 installed? true
==> Build Flags
CC: /usr/bin/gcc-4.2
CXX: /usr/bin/g++-4.2
LD: /usr/bin/gcc-4.2
CFLAGS:  -w -pipe -O3
CXXFLAGS:  -w -pipe -O3
CPPFLAGS: -I/usr/local/Cellar/readline/6.2.1/include
LDFLAGS: -L/usr/local/Cellar/readline/6.2.1/lib
MAKEFLAGS: -j4
PKG_CONFIG_PATH: /usr/local/Cellar/readline/6.2.1/lib/pkgconfig

[orbiteleven]

whoa nelly. my bad. it's installed, perhaps not correctly. will re-install, restart and try again. thanks.

[orbiteleven]

Yup. PEBKAC. Turns out I had installed the "Install Xcode" app, but not actually installed Xcode 4.1

[ttilley]

Note to future googlers: if you hack-install 3.2.6 on lion and 4.1 on top of it with the hopes of building universal binaries that include PPC, then you probably HAVE NOT installed all of xcode 4.1. At least this is the case using the 'InstallXcodeLion' package. To confuse matters even further, homebrew may claim that you are using xcode 4.0!

If you are further entrenched in madness and attempting to install a usable clang with ARC via 4.2, then all hope is lost. Give up. You cannot win this battle. Only failure and disappointment await you.