OS X notes

Libtoolize

It's called glibtoolize on OS X, either fix autogen.sh or ln -s /usr/local/bin/glibtoolize /usr/local/bin/libtoolize

10.7 SDK in Xcode 7.3

Quit Xcode 7.3.

Mount the old Xcode DMG

Copy

[Xcode6.4].app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk

to

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/

Open

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Info.plist

and remove these two lines:

	<key>MinimumSDKVersion</key>
	<string>10.11</string>