[cfe-dev] irssi compiles!

[Sanghyeon Seo]

As of SVN r49213, you can compile an IRC client, irssi 0.8.12, with
clang out of the box. You can use the result to connect to
irc.oftc.net and join #llvm! :-)

ccc (r49213) Time: 38.9s Size: 1235575
gcc (Debian 4.2.3-3) Time: 41.5s Size: 899309

Comparison is not too meaningful for several reasons:
* As often pointed out, ccc and gcc work differently. .o produced by
ccc are LLVM bitcode; ccc does native code generation only at the very
end.
* clang and gcc produce different diagnostics. For example, gcc wanred
about possible uninitialized uses of variables, while ccc includes
column number in warnings.
* Default CFLAGS in autotools is -g -O2. As clang can't generate debug
symbols yet, I set CFLAGS=-O2 to make comparison not completely
meaningless.

Commands I used:

$ wget -q http://irssi.org/files/irssi-0.8.12.tar.gz
$ tar zxf irssi-0.8.12.tar.gz
$ cd irssi-0.8.12
$ time (CFLAGS=-O2 CC=ccc ./configure; make) >/dev/null
$ ls -l src/fe-text/irssi
$ make clean >/dev/null
$ time (CFLAGS=-O2 CC=gcc ./configure; make) >/dev/null
$ ls -l src/fe-text/irssi

-- 
Seo Sanghyeon