PROJECT (test)

ADD_CUSTOM_TARGET ( SvnRevision ALL
					${CMAKE_COMMAND} -E echo "1234" > svnrevision.txt
					#
					# This works under cmake version 2.4-patch 6 running under Windows with -G"MinGW Makefiles"
					#
					# This fails under cmake version 2.4-patch 7 running under Linux with -G"Unix Makefiles"
					#
					# Backslash escapes seem to fail with Unix generator under both O/S, see generated makefile rule in:
					#
					#	.../CMakeFiles/SvnRevision.dir/build.make
					#
					# CMakeFiles/SvnRevision:
					#	/usr/bin/cmake -E echo 1234 > svnrevision.txt
					#	sed -e s/\(.*\)/#define\ SVN_REVISION\ \ r\1\"/" svnrevision.txt > svnrevision.h
					#
					# Inner two double quotes should have been retained, but instead last two have been generated.
					#
					# FYI, Windows "MinGW Makefiles" generator generates this:
					#
					#	sed -e "s/\(.*\)/#define SVN_REVISION \" r\1\"/" svnrevision.txt > svnrevision.h
					#
					# FYI, Windows "Unix Makefiles" generator generates the same as when running on Linux:
					#
					#   sed -e s/\(.*\)/#define\ SVN_REVISION\ \ r\1\"/" svnrevision.txt > svnrevision.h
					#
					#
					# PS: Unsure way there is an extra space in front of " r\1" in both.
					#
					#
                    COMMAND sed -e "s/\\(.*\\)/#define SVN_REVISION \\"r\\1\\"/" svnrevision.txt > svnrevision.h
					# Dummy command without any backslashes just to prove basic rule is OK
					#COMMAND ${CMAKE_COMMAND} -E echo \\"#define SVN_REVISION \\" > svnrevision.h
					)