Adding the sqlite sourcecode

tool/warnings.sh

@@ -0,0 +1,65 @@
+#/bin/sh
+#
+# Run this script in a directory with a working makefile to check for 
+# compiler warnings in SQLite.
+#
+
+if uname | grep -i openbsd ; then
+  # Use these for testing on OpenBSD:
+  WARNING_OPTS=-Wall
+  WARNING_ANDROID_OPTS=-Wall
+else
+  # Use these for testing on Linux and Mac OSX:
+  WARNING_OPTS="-Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long -Wno-array-bounds"
+  gccvers=`gcc -v 2>&1 | grep '^gcc version'`
+  if test "$gccvers" '<' 'gcc version 6'
+  then
+    WARNING_ANDROID_OPTS="-Wshadow -Wall -Wextra"
+  else
+    WARNING_ANDROID_OPTS="-Wshadow -Wall -Wextra -Wimplicit-fallthrough=0"
+  fi
+fi
+
+rm -f sqlite3.c
+make sqlite3.c
+echo '**** No optimizations.  Includes FTS4/5, GEOPOLY, JSON1 ***'
+echo '****' $WARNING_OPTS
+gcc -c $WARNING_OPTS -std=c89 \
+      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_GEOPOLY \
+      -DSQLITE_ENABLE_FTS5 \
+      sqlite3.c
+if test x`uname` = 'xLinux'; then
+echo '**** Android configuration ******************************'
+echo '****' $WARNING_ANDROID_OPTS
+gcc -c \
+  -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 '****' $WARNING_OPTS
+gcc -c $WARNING_OPTS -std=c89 \
+      -ansi -DSQLITE_ENABLE_STAT4 -DSQLITE_THREADSAFE=0 \
+      sqlite3.c
+echo '**** Optimized -O3.  Includes FTS4/5, GEOPOLY, JSON1 ******'
+echo '****' $WARNING_OPTS
+gcc -O3 -c $WARNING_OPTS -std=c89 \
+      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_GEOPOLY \
+      -DSQLITE_ENABLE_FTS5 \
+      sqlite3.c