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(-)

 diff -dur strace-4.5.16.orig/system.c strace-4.5.16/system.c

 --- strace-4.5.16.orig/system.c	2007-01-17 00:22:36.000000000 +0100

 +++ strace-4.5.16/system.c	2007-07-14 19:28:41.000000000 +0200

 @@ -1612,7 +1612,9 @@

  	{ CTL_KERN, "CTL_KERN" },

  	{ CTL_VM, "CTL_VM" },

  	{ CTL_NET, "CTL_NET" },

 +#ifdef CTL_PROC

  	{ CTL_PROC, "CTL_PROC" },

 +#endif

  	{ CTL_FS, "CTL_FS" },

  	{ CTL_DEBUG, "CTL_DEBUG" },

  	{ CTL_DEV, "CTL_DEV" },