Use trunc() from C99. From patch #20 by Jesse Rosenstock.
Use trunc() from C99. From patch #20 by Jesse Rosenstock.


git-svn-id: a31a0a224e030a1397f947541697f433f9e022f5@128 4a0124f5-7288-4c88-8df5-efb20b5748ad

barak/tinyscheme,barak/tinyscheme