[sql] Import reference version of SQLite 3.17..

third_party/sqlite/sqlite-src-3170000/tool/warnings.sh

Index: third_party/sqlite/sqlite-src-3170000/tool/warnings.sh
diff --git a/third_party/sqlite/sqlite-src-3170000/tool/warnings.sh b/third_party/sqlite/sqlite-src-3170000/tool/warnings.sh
new file mode 100644
index 0000000000000000000000000000000000000000..ae40cfb1aee371aea82b06b9251bb059768a0602
--- /dev/null
+++ b/third_party/sqlite/sqlite-src-3170000/tool/warnings.sh
@@ -0,0 +1,58 @@
+#/bin/sh
+#
+# Run this script in a directory with a working makefile to check for 
+# compiler warnings in SQLite.
+#
+
+# Use these for testing on Linux and Mac OSX:
+WARNING_OPTS="-Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long"
+WARNING_ANDROID_OPTS="-Wshadow -Wall -Wextra"
+
+# Use these for testing on OpenBSD:
+# WARNING_OPTS=-Wall
+# WARNING_ANDROID_OPTS=-Wall
+
+rm -f sqlite3.c
+make sqlite3.c
+echo '********** No optimizations.  Includes FTS4/5, RTREE, JSON1 ***'
+echo '**********    ' Options: $WARNING_OPTS
+gcc -c $WARNING_OPTS -std=c89 \
+      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_RTREE \
+      -DSQLITE_ENABLE_FTS5 -DSQLITE_ENABLE_JSON1 \
+      sqlite3.c
+if test x`uname` = 'xLinux'; then
+echo '********** Android configuration ******************************'
+echo '**********    ' Options: $WARNING_ANDROID_OPTS
+gcc -c \
+  -DHAVE_USLEEP=1 \
+  -DSQLITE_HAVE_ISNAN \
+  -DSQLITE_DEFAULT_JOURNAL_SIZE_LIMIT=1048576 \
+  -DSQLITE_THREADSAFE=2 \
+  -DSQLITE_TEMP_STORE=3 \
+  -DSQLITE_POWERSAFE_OVERWRITE=1 \
+  -DSQLITE_DEFAULT_FILE_FORMAT=4 \
+  -DSQLITE_DEFAULT_AUTOVACUUM=1 \
+  -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1 \
+  -DSQLITE_ENABLE_FTS3 \
+  -DSQLITE_ENABLE_FTS3_BACKWARDS \
+  -DSQLITE_ENABLE_FTS4 \
+  -DSQLITE_OMIT_BUILTIN_TEST \
+  -DSQLITE_OMIT_COMPILEOPTION_DIAGS \
+  -DSQLITE_OMIT_LOAD_EXTENSION \
+  -DSQLITE_DEFAULT_FILE_PERMISSIONS=0600 \
+  -DSQLITE_ENABLE_ICU \
+  -DUSE_PREAD64 \
+  $WARNING_ANDROID_OPTS \
+  -Os sqlite3.c shell.c
+fi
+echo '********** No optimizations. ENABLE_STAT4. THREADSAFE=0 *******'
+echo '**********    ' Options: $WARNING_OPTS
+gcc -c $WARNING_OPTS -std=c89 \
+      -ansi -DSQLITE_ENABLE_STAT4 -DSQLITE_THREADSAFE=0 \
+      sqlite3.c
+echo '********** Optimized -O3.  Includes FTS4/5, RTREE, JSON1 ******'
+echo '**********    ' Options: $WARNING_OPTS
+gcc -O3 -c $WARNING_OPTS -std=c89 \
+      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_RTREE \
+      -DSQLITE_ENABLE_FTS5 -DSQLITE_ENABLE_JSON1 \
+      sqlite3.c