gcc -pipe -O2 -D__USE_BSD_SIGNAL -Wall -W -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -Wcast-align -D_GNU_SOURCE=1 -O2 -g -DUSE_PAM -DGNU_LIBC -D_GNU_SOURCE logwtmp.c -c /usr/include/bits/string2.h: In function `__mempcpy_small': In file included from /usr/include/string.h:346, from logwtmp.c:34: /usr/include/bits/string2.h:363: warning: pointer of type `void *' used in arithmetic
Fixed in glibc-2.1.2-5 and later