Ubuntu
mawk package

Defaul awk version can't build zd1211 kernel moduke from Dapper source

Bug #48855 reported by Ben Bacarisse on 2006-06-07

Affects		Status	Importance	Assigned to	Milestone
	mawk (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

Binary package hint: mawk

In a fresh 6.06 install, "make modules" fails to compile the zd1211 module since it does not have POSIX regex support. Installing gawk instead does the trick.

Revision history for this message

Simon Law (sfllaw) wrote on 2006-08-15:

What errors does mawk spit out? And could you include the C source
files that mawk mentions?

Changed in mawk:
status:	Unconfirmed → Needs Info

Revision history for this message

Simon Law (sfllaw) wrote on 2006-08-15:

Or rather, the failing awk script.

Revision history for this message

Ben Bacarisse (launchpad-bsb) wrote on 2006-08-22:

version without POSIX-style character classes. Edit (3.0 KiB, text/plain)

It does not give an error. It just does not generate the required output. In the zddevlist.awk script, a series of calls to "match" must succeed or the script generates a #error line for the compiler to find later.

Looking more closely, the problem is simply that mawk does not accept POSIX-style character classes like [:alnum:] in calls to match. I could not find any flag or environment variable that causes mawk to take POSIX character classes. gawk does so by default and thus works.

The script can be re-written to avoid POSIX-style character classes but at the expense of portability to systems with non-contiguous alphabetic character sets and/or locale-specific alphabetic characters (attached -- though this does not seem like the correct solution).

Revision history for this message

Sam Trenholme (strenholme-usenet) wrote on 2006-11-01: