hello,

i am using slackware 12. i downloaded beryl and installed it. but i am not able to run it. when i run it i get a error like this...

root@warun:/home/varun/setup/beryl-core-0.2.1/src# ./beryl
No protocol specified
xvinfo: Unable to open display :0.0
No protocol specified
xdpyinfo: unable to open display ":0.0".
**************************************************************
* Beryl system compatiblity check *
**************************************************************
No protocol specified
Error: unable to open display (null)
No protocol specified

wat do i do?
thanks in advance!!

Beryl is "old news", try Compiz-Fusion instead (available at slackbuilds.org).

i tried installing Compiz-Fusion but i am getiing an error while building one of its libraries libcompizconfig as....

compiz.c:42:25: error: compiz-core.h: No such file or directory
compiz.c: In function 'initColorValue':
compiz.c:515: warning: implicit declaration of function 'MAX'
compiz.c:515: warning: nested extern declaration of 'MAX'
compiz.c:515: warning: implicit declaration of function 'MIN'
compiz.c:515: warning: nested extern declaration of 'MIN'
compiz.c: In function 'initIntInfo':
compiz.c:720: error: 'MINSHORT' undeclared (first use in this function)
compiz.c:720: error: (Each undeclared identifier is reported only once
compiz.c:720: error: for each function it appears in.)
compiz.c:721: error: 'MAXSHORT' undeclared (first use in this function)
compiz.c: In function 'initFloatInfo':
compiz.c:788: error: 'MINSHORT' undeclared (first use in this function)
compiz.c:789: error: 'MAXSHORT' undeclared (first use in this function)
make[1]: *** [compiz.lo] Error 1
make[1]: Leaving directory `/home/varun/setup/libcompizconfig-0.7.4/src'
make: *** [install-recursive] Error 1

Compiz-fusion is included in slackware 12.1, you could upgrade your system or try to use slackbuilds/packages with it.