SQLite3.c中的一个bug:error: expected value in expression #if SQLITE_HAS_CODEC

I got a error: expected value in expression #if SQLITE_HAS_CODEC after I add the code in sqlite3.c as below:

#ifndef SQLITE_HAS_CODEC#define SQLITE_HAS_CODEC#endif

so I try to get the latest sqlite3.c as below:

    tar xzf sqlite.tar.gz    ;#  Unpack the source tree into "sqlite"    mkdir bld                ;#  Build will occur in a sibling directory    cd bld                   ;#  Change to the build directory    ../sqlite/configure      ;#  Run the configure script    make                     ;#  Run the makefile.    make sqlite3.c           ;#  Build the "amalgamation" source file    make test                ;#  Run some tests (requires Tcl)

I find out the result:

➜  bld cat sqlite3.c |grep '#if SQLITE_HAS_CODEC'#if SQLITE_HAS_CODEC#if SQLITE_HAS_CODEC#if SQLITE_HAS_CODEC   #if SQLITE_HAS_CODEC