Include the full version number in the directory paths installed.
Change the version string so that it does not break 'make', and so that it has no '/' (it would be a hell if installed directories would mirror the SVN branches... :-/ )
Do not use implicit rules for the Makefile.
Simplify and enc=hance the --local test to refuse (un)installing.
Double-quotes variables, they are based on user input.
Eye-candy in the 'compile' and install messages.

/trunk/configure | 26 14 12 0 ++++++++++---------
/trunk/Makefile.in | 83 45 38 0 +++++++++++++++++++++++++++++++++---------------------------
2 files changed, 59 insertions(+), 50 deletions(-)

 # dmalloc debug facility

 menuconfig DMALLOC

     bool

     prompt "dmalloc"

     default n

 if DMALLOC

 choice

     bool

     prompt "dmalloc version"

 config DMALLOC_V_5_4_3

     bool

     prompt "5.4.3 (OBSOLETE)"

     depends on OBSOLETE

 config DMALLOC_V_5_5_2

     bool

     prompt "5.5.2"

 # CT_INSERT_VERSION_ABOVE

 # Don't remove above line!

 endchoice

 config DMALLOC_VERSION

     string

     default "5.4.3" if DMALLOC_V_5_4_3

     default "5.5.2" if DMALLOC_V_5_5_2

 # CT_INSERT_VERSION_STRING_ABOVE

 # Don't remove above line!

 endif