[sql] Import SQLite 3.17.0.

third_party/sqlite/src/autoconf/README

Index: third_party/sqlite/src/autoconf/README
diff --git a/third_party/sqlite/src/autoconf/README b/third_party/sqlite/src/autoconf/README
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-
-This package contains:
-
- * the SQLite library amalgamation (single file) source code distribution,
- * the shell.c file used to build the sqlite3 shell too, and
- * the sqlite3.h and sqlite3ext.h header files required to link programs
-   and sqlite extensions against the installed libary.
- * autoconf/automake installation infrastucture.
-
-The generic installation instructions for autoconf/automake are found
-in the INSTALL file.
-
-The following SQLite specific boolean options are supported:
-
-  --enable-readline           use readline in shell tool   [default=yes]
-  --enable-threadsafe         build a thread-safe library  [default=yes]
-  --enable-dynamic-extensions support loadable extensions  [default=yes]
-
-The default value for the CFLAGS variable (options passed to the C 
-compiler) includes debugging symbols in the build, resulting in larger
-binaries than are necessary. Override it on the configure command
-line like this:
-
-  $ CFLAGS="-Os" ./configure
-
-to produce a smaller installation footprint.
-
-Other SQLite compilation parameters can also be set using CFLAGS. For
-example:
-
-  $ CFLAGS="-Os -DSQLITE_OMIT_TRIGGERS" ./configure
-