Import awk-
20110810.
* /pat/, \n /pat/ {...} is now legal, though bad style to use.
* added checks to new -v code that permits -vnospace
* removed fixed limit on number of open files
* fixed day 1 bug that resurrected deleted elements of ARGV when
used as filenames (in lib.c).
* minor type fiddles to make gcc -Wall -pedantic happier (but not
totally so)
* split(s, a, //) now behaves the same as split(s, a, "")
* another fix to avoid core dump with delete(ARGV)
Import awk-
20110506.
* added #ifdef for isblank (allows -ffoo as well as -f foo arguments).
* fixed a subtle (and i hope low-probability) overflow error in
fldbld, by adding space for one extra \0.
* changed srand() to return the previous seed
Delete old versions of awk and unversion directory name.
Import latest awk sources.