Backport SQLite memcmp patch.

third_party/sqlite/src/src/build.c

Index: third_party/sqlite/src/src/build.c
diff --git a/third_party/sqlite/src/src/build.c b/third_party/sqlite/src/src/build.c
index 323a6160fd0a027280242c483042865ef3cfb786..4f4f8ed7f5e110219a4f4679de257d921cd59b6c 100644
--- a/third_party/sqlite/src/src/build.c
+++ b/third_party/sqlite/src/src/build.c
@@ -2480,7 +2480,7 @@ Index *sqlite3CreateIndex(
   assert( pTab!=0 );
   assert( pParse->nErr==0 );
   if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 
-       && memcmp(&pTab->zName[7],"altertab_",9)!=0 ){
+       && sqlite3StrNICmp(&pTab->zName[7],"altertab_",9)!=0 ){

[wtc, 2013/05/08 22:39:27]

Did you notice that he changed some string comparisons, such
as this one, to be case-insensitive?

[Scott Hess - ex-Googler, 2013/05/08 22:56:51]

Yeah.  I don't think it will matter to any of our code, fortunately.

     sqlite3ErrorMsg(pParse, "table %s may not be indexed", pTab->zName);
     goto exit_create_index;
   }