Comment 2 for bug 1094414

Platform: Fedora 17, gcc (GCC) 4.7.2 20120921 (Red Hat 4.7.2-2)

From configure output:
checking whether C compiler accepts -std=c99... no

From config.log
configure:23611: checking whether C compiler accepts -std=c99
configure:23630: gcc -c -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -std=c99 -Werror -std=c99 conftest.c >&5
conftest.c:51:0: error: "HAVE_LIBMEMCACHED" redefined [-Werror]
conftest.c:45:0: note: this is the location of the previous definition
cc1: all warnings being treated as errors
configure:23630: $? = 1