To give an early Macbook Air from 2010 some useful tasks, a package manager is needed. The basic requirement is always Xcode 4.6.3 (from 2013) while also the command line tools are necessary.
Using some code from an earlier script I wrote
XC=xc.dmg DMGURL=https://download.developer.apple.com/Developer_Tools/xcode_4.6.3/xcode4630916281a.dmg curl "$DMGURL" -o "$XC" DMGURL=http://devimages.apple.com/downloads/xcode/command_line_tools_for_xcode_os_x_lion_april_2013.dmg TOOLS=cltools.dmg curl "$DMGURL" -o "$TOOLS"
Then install Xcode, then Commandline Tools as an untrusted package.
TMPMOUNT=`/usr/bin/mktemp -d /tmp/clitools.XXXX` hdiutil attach "$TOOLS" -mountpoint "$TMPMOUNT" -nobrowse sudo installer -allowUntrusted -pkg "$(find $TMPMOUNT -name '*.mpkg')" -target / hdiutil detach "$TMPMOUNT" rm -rf "$TMPMOUNT" rm "$TOOLS"
So far so good. Then I installed
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
and run several “brew update” and “brew doctor” which failed due to SSL errors. Only macport worked perfect and compiled all my sources (fswatch….).