From 8c41d647fab4dfbd0a9979514f95431dfc19e00b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 27 Jan 2016 18:34:18 +0200
Subject: Detect if column metadata functions are available

For example, system-default build of SQLite doesn't have
SQLITE_ENABLE_COLUMN_METADATA.
---
 m4/libsqlite.m4 | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'm4')

diff --git a/m4/libsqlite.m4 b/m4/libsqlite.m4
index a8fe4f7..36f92f8 100644
--- a/m4/libsqlite.m4
+++ b/m4/libsqlite.m4
@@ -7,9 +7,13 @@ dnl
 dnl Also sets libsqlite_unlock_notify to yes if sqlite3_unlock_notify()
 dnl functionality is available.
 dnl
+dnl Also sets libsqlite_column_metadata to yes if sqlite3_column_*()
+dnl functions are available.
+dnl
 AC_DEFUN([LIBSQLITE], [
 libsqlite_found=no
 libsqlite_unlock_notify=no
+libsqlite_column_metadata=no
 
 AC_MSG_CHECKING([for libsqlite3])
 
@@ -58,6 +62,27 @@ libsqlite_unlock_notify=yes
 ])
 fi
 
+# Check for column_metadata.
+#
+if test x"$libsqlite_found" = xyes; then
+CXX_LIBTOOL_LINK_IFELSE([
+AC_LANG_SOURCE([
+#include <sqlite3.h>
+
+int
+main ()
+{
+  sqlite3_stmt* stmt (0);
+  sqlite3_column_database_name (stmt, 0);
+  sqlite3_column_table_name (stmt, 0);
+  sqlite3_column_origin_name (stmt, 0);
+}
+])],
+[
+libsqlite_column_metadata=yes
+])
+fi
+
 if test x"$libsqlite_found" = xyes; then
   AC_MSG_RESULT([yes])
   $1
-- 
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