bug#17501: ARM cast-align Error

[Nathan Royce]

Similar to: http://lists.gnu.org/archive/html/bug-grep/2010-10/msg00020.html";  
CC       memchr.omemchr.c: In function 'rpl_memchr':memchr.c:84:18: error: cast 
increases required alignment of target type [-Werror=cast-align]   longword_ptr 
= (const longword *) char_ptr;                  ^cc1: all warnings being 
treated as errorsmake[3]: *** [memchr.o] Error 1"commit 
3b301a71d94eec362f00905be9d2fa2b044f6f83
It was working with previous commits such as commit 
a46b95cb3f5a1b6e399a48cc0f554c1df1371b21