Thread-safe libcups

[michaelrsweet]

Version: 1.2-feature
CUPS.org User: jlovell

I couldn't find the old STR requesting the thread safety feature so here's a new one. The attached patch is one way to skin this cat...

The before & after test to make sure you get them all is:

$ nm libcups.2.dylib | egrep -i " b|d "

It also fixes a typo in cupsd.conf.in and stops the compiler from complaining about -fpie (which is different than -fPIC?)

It touches a bunch of files -- sorry in advance for the formatting issues.

Thanks!

[michaelrsweet]

CUPS.org User: mike

Your patch is missing the cups-threads.m4 file...

Will do some cleanup and commit, thanks!

[michaelrsweet]

CUPS.org User: jlovell

File attached now. I'm sure you can do better on the autoconf stuff.
I'm also not enamored with the variable names I choose in case you have thoughts on improvements.

Thanks!

[michaelrsweet]

CUPS.org User: mike

Fixed in Subversion repository.

Please let me know if I've missed anything, particularly with the pthreads check (which I committed before I saw your file...)

I'll probably update the pthreads tests to handle more possibilities, but the current test is taken from the FLTK configure tests and works on *BSD, OSX, Linux, and all of the commercial UNIX's...