since now easily available in debian squeeze, i've tried it out:
clang -g -O2 -Wall -Wcast-qual -Wcast-align -Wstrict-prototypes -D_REENTRANT -pthread -I ./include/ -I. -I ./include/ -DHAVE_CONFIG_H -c modules/vcard/serv_vcard.c -o modules/vcard/serv_vcard.o
modules/vcard/serv_vcard.c:1128:33: warning: if statement has empty body [-Wempty-body]
if (strcasecmp(cmdbuf, "GET "));
^
1 diagnostic generated.
clang
this is the Warning GCC didn't give me in advance. any ideas? reads like a bug to me?