diff --git a/libsqlite3-sys/sqlite3/wasm32-unknown-unknown/include/string.h b/libsqlite3-sys/sqlite3/wasm32-unknown-unknown/include/string.h
index 09cb263..604d5a8 100644
--- a/libsqlite3-sys/sqlite3/wasm32-unknown-unknown/include/string.h
+++ b/libsqlite3-sys/sqlite3/wasm32-unknown-unknown/include/string.h
@@ -5,6 +5,7 @@ size_t strcspn(const char *s1, const char *s2);
 size_t strlen(const char *str);
 int strncmp(const char *s1, const char *s2, size_t n);
 char *strrchr(const char *p, int ch);
+size_t strspn(const char *s1, const char *s2);
 
 int memcmp(const void *str1, const void *str2, size_t n);
 void *memcpy(void *dest, const void *src, size_t n);
diff --git a/libsqlite3-sys/sqlite3/wasm32-unknown-unknown/libc/string/strspn.c b/libsqlite3-sys/sqlite3/wasm32-unknown-unknown/libc/string/strspn.c
new file mode 100644
index 0000000..4b0ba14
--- /dev/null
+++ b/libsqlite3-sys/sqlite3/wasm32-unknown-unknown/libc/string/strspn.c
@@ -0,0 +1,49 @@
+
+/*	$OpenBSD: strspn.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <string.h>
+/*
+ * Span the string s2 (skip characters that are in s2).
+ */
+size_t
+strspn(const char *s1, const char *s2)
+{
+	const char *p = s1, *spanp;
+	char c, sc;
+	/*
+	 * Skip any characters in s2, excluding the terminating \0.
+	 */
+cont:
+	c = *p++;
+	for (spanp = s2; (sc = *spanp++) != 0;)
+		if (sc == c)
+			goto cont;
+	return (p - 1 - s1);
+}
\ No newline at end of file