sqlite3: add option for batch-atomic write support

This allows to build SQLite with support for the batch-atomic write
optimization. It makes use of atomic write support provided by the
underlying file system. Currently, this is only supported on F2FS. It
it does not work with overlayfs.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>

libs/sqlite3/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=sqlite
 PKG_VERSION:=3330000
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-autoconf-$(PKG_VERSION).tar.gz
 PKG_HASH:=106a2c48c7f75a298a7557bcc0d5f4f454e5b43811cc738b7ca294d6956bbb15
@@ -31,6 +31,7 @@ PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 
 PKG_CONFIG_DEPENDS := \
+	CONFIG_SQLITE3_BATCH_ATOMIC_WRITE \
 	CONFIG_SQLITE3_DYNAMIC_EXTENSIONS \
 	CONFIG_SQLITE3_FTS3 \
 	CONFIG_SQLITE3_FTS4 \
@@ -99,7 +100,8 @@ endef
 TARGET_CFLAGS += \
 	-DHAVE_ISNAN \
 	-DHAVE_MALLOC_USABLE_SIZE \
-	-DSQLITE_ENABLE_UNLOCK_NOTIFY
+	-DSQLITE_ENABLE_UNLOCK_NOTIFY \
+	$(if $(CONFIG_SQLITE3_BATCH_ATOMIC_WRITE),-DSQLITE_ENABLE_BATCH_ATOMIC_WRITE)
 
 CONFIGURE_ARGS += \
 	--disable-debug \