Carbon Copy: Quote from: harleyb Obviously, you need Xcode installed. However, you don't need gmake or sqlite like aircrack-ng's guide says. Open Terminal, run: Code: svn co http://trac.aircrack-ng.org/svn/trunk/ aircrack-ng Now, you need to edit common.mak to build for a 32-bit architecture using 10.5 headers, and have it use gcc-4.0 instead of 4.2. Find this line: Code: CC = $(TOOL_PREFIX)gcc and replace with: Code: CC = $(TOOL_PREFIX)gcc-4.0 Then find this line: Code: CFLAGS ?= -g -W -Wall -Werror -O3 -Wno-strict-aliasing and replace with: Code: CFLAGS ?= -g -W -Wall -Werror -O3 -Wno-strict-aliasing -arch i386 -isysroot /Developer/SDKs/MacOSX10.5.sdk Go back to Terminal and: Code: cd aircrack-ng make sudo make install Look at the make install output to find out where stuff got placed; the tools you'll likely use are in /usr/local/bin/ Hope this helps somebody! That was a copy of the method I am using. However I keep getting the error attached below. Any ideas anyone? This error comes after I've: Downloader aircrack-ng from terminal modified the files ran the cd command and the make command NOT the sudo command.