Fix compilation on macos 11.0

c_src/sqlite3_drv.c

@@ -400,7 +400,7 @@ static int changes(sqlite3_drv_t *drv, char *buf, int len) {
 }
 
 static int enable_load_extension(sqlite3_drv_t* drv, char *buf, int len) {
-#ifdef ERLANG_SQLITE3_LOAD_EXTENSION
+#ifndef ERLANG_SQLITE3_NO_LOAD_EXTENSION
   char enable = buf[0];
   int result = sqlite3_enable_load_extension(drv->db, (int) enable);
   if (result) {

c_src/sqlite3_drv.h

@@ -4,7 +4,6 @@
 #endif
 
 #define _CRT_SECURE_NO_WARNINGS // secure functions aren't cross-platform
-#define ERLANG_SQLITE3_LOAD_EXTENSION // comment out if SQLite is built with SQLITE_OMIT_LOAD_EXTENSION
 
 #include <erl_driver.h>
 #include <ei.h>

rebar.config

@@ -4,8 +4,7 @@
 {port_env, [{"DRV_CFLAGS", "$DRV_CFLAGS -Wall -Wextra -Wno-unused-parameter -Wstrict-prototypes"},
             {"DRV_LDFLAGS", "$DRV_LDFLAGS -lsqlite3"},
             {"ERL_LDFLAGS", " -L$ERL_EI_LIBDIR -lei"},
-            {"darwin", "DRV_CFLAGS", "$DRV_CFLAGS -Wall -Wextra -Wno-unused-parameter -Wstrict-prototypes"},
-            {"darwin", "DRV_LDFLAGS", "$DRV_LDFLAGS"},
+            {".*darwin.*", "DRV_CFLAGS", "$DRV_CFLAGS -DERLANG_SQLITE3_NO_LOAD_EXTENSION"},
             {".*win32.*", "DRV_CFLAGS", "$DRV_CFLAGS /O2 /Isqlite3_amalgamation /Ic_src /W4 /wd4100 /wd4204 /wd4820 /wd4255 /wd4668 /wd4710 /wd4711"},
             {".*win32.*", "DRV_LDFLAGS", "$DRV_LDFLAGS sqlite3.lib"}]}.
 {cover_enabled, true}.