Ronald Oussoren added the comment:
https://www.sqlite.org/c3ref/enable_shared_cache.html appears to indicate
that the function is deprecated on OSX 10.7 and iOS 5.0, but looking at the
latest sources on sqlite.org that's not the case, the warning in the
documentation appears to be for the
New submission from Vajrasky Kok:
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.