I got this warning when compiling sqlite3 module.

gcc -Wno-unused-result -Wsign-compare -g -O0 -Wall -Wstrict-prototypes -Werror=declaration-after-statement -DMODULE_NAME="sqlite3" -DSQLITE_OMIT_LOAD_EXTENSION=1 -IModules/_sqlite -I/usr/include -I./Include -I. -IInclude -I/usr/local/include -I/Users/sky/Code/python/cpython/Include -I/Users/sky/Code/python/cpython -c /Users/sky/Code/python/cpython/Modules/_sqlite/module.c -o build/temp.macosx-10.10-x86_64-3.6-pydebug/Users/sky/Code/python/cpython/Modules/_sqlite/module.o
/Users/sky/Code/python/cpython/Modules/_sqlite/module.c:136:10: warning: 'sqlite3_enable_shared_cache' is
      deprecated: first deprecated in OS X 10.7 [-Wdeprecated-declarations]
    rc = sqlite3_enable_shared_cache(do_enable);
         ^
/usr/include/sqlite3.h:5006:16: note: 'sqlite3_enable_shared_cache' has been explicitly marked deprecated here
SQLITE_API int sqlite3_enable_shared_cache(int) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_7, __I...
               ^
1 warning generated.

The enable_shared_cache method will fail if it is used afterwards.
"Changing the shared_cache flag failed"

Here is the patch to remove the warning.