gawk 3.1.3 crash in POSIX RE

[Patrick TJ McPhee]

The attached awk script acronyms.awk crashes during parsing with gawk
3.1.3. It works with gawk 3.0.6. regexpatch contains a context diff for
a fix. In words: it crashes when RE_TRANSLATE_TYPE is defined as char *,
but not if it's defined as unsigned char *.

The actual crash is in the macro BUILD_CHARCLASS_LOOP in regcomp.c, in
circumstances where trans is non-NULL.

The patched executable passes `make check'. I tried this on FreeBSD
4.6.0 with gcc 2.95.3.

Have a good day.

-- 

Patrick TJ McPhee
East York  Canada
address@hidden

acronyms.awk
Description: application/awk

regexpatch
Description: Text document