去 /Applications/MAMP/logs/php_error.log 下看错误，如果是：
PHP Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate x bytes) in /path/to/file on line n
那么就去 /Applications/MAMP/bin/php/php5.3.6/conf/php.ini 里把 memory_limit 改为 64M 或更大即可
/private/var/folders/tz/95z2f6rx1zb1j04zxb0sh1040000gn/C
病情：
error@cox:/Users/mom$ brew update remote: Counting objects: 2482, done. remote: Compressing objects: 100% (750/750), done. remote: Total 2105 (delta 1543), reused 1822 (delta 1349) Receiving objects: 100% (2105/2105), 329.33 KiB | 122 KiB/s, done. Resolving deltas: 100% (1543/1543), completed with 295 local objects. From https://github.com/mxcl/homebrew f884112..28f7e01 master -> origin/master error: The following untracked working tree files would be overwritten by merge: Library/Formula/autojump.rb Please move or remove them before you can merge. Updating f884112..28f7e01 Aborting Error: Failed while executing git pull origin refs/heads/master:refs/remotes/origin/master
解决方法：
cd `brew --prefix` git clean -n # Does a dry run---shows what will get nuked without touching anything git clean -f # This will destroy files
被 Xcode 优化过的图片大部分程序是无法打开的，如果想查看这类图片，需要：
/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush -revert-iphone-optimizations -q input.png output.png
sudo "/System/Library/CoreServices/Language Chooser.app/Contents/MacOS/Language Chooser"
openssl base64 -in input.png -out output.txt
相反的
openssl base64 -d -in input.txt -out input.png
结束进程 imagent 即可
[15:01:44]root@vortex:/Users/vortex$ brew install gettext
==> Downloading http://ftpmirror.gnu.org/gettext/gettext-0.18.1.1.tar.gz
######################################################################## 100.0%
==> Downloading patches
######################################################################## 100.0%
######################################################################## 100.0%
==> Patching
patching file gettext-tools/configure
patching file gettext-tools/Makefile.in
==> ./configure --disable-debug --prefix=/usr/local/Cellar/gettext/0.18.1.1 --without-included-gettext --without-included
==> make
==> make install
==> Caveats
This formula is keg-only, so it was not symlinked into /usr/local.
OS X provides the BSD gettext library and some software gets confused if both are in the library path.
Generally there are no consequences of this for you.
If you build your own software and it requires this formula, you'll need
to add its lib & include paths to your build variables:
LDFLAGS -L/usr/local/Cellar/gettext/0.18.1.1/lib
CPPFLAGS -I/usr/local/Cellar/gettext/0.18.1.1/include
==> Summary
/usr/local/Cellar/gettext/0.18.1.1: 365 files, 13M, built in 3.1 minutes
[15:08:58]root@vortex:/Users/vortex$ brew link gettext Linking /usr/local/Cellar/gettext/0.18.1.1... 145 symlinks created
/Applications/iChat.app/Contents/PlugIns/Balloons.transcriptstyle/Contents/Resources/
sudo chown root:wheel BigBubbleGloss.png;sudo chown root:wheel BigBubbleMask.png sudo chmod 644 BigBubbleGloss.png;sudo chmod 644 BigBubbleMask.png
把被共享屏幕人的「Automatic graphics switching」选项关掉即可