diff --git a/configure.in b/configure.in
index 42d8f6cd..ab4c097c 100644
--- a/configure.in
+++ b/configure.in
@@ -40,7 +40,7 @@ echo no)
 AC_FUNC_MEMCMP
 AC_FUNC_UTIME_NULL
 AC_CHECK_FUNCS(mmap waitpid getcwd strdup strerror chown chmod mknod)
-AC_CHECK_FUNCS(fchmod fstat bcopy bzero readlink link utime utimes)
+AC_CHECK_FUNCS(fchmod fstat strchr bcopy bzero readlink link utime utimes)
 AC_CHECK_FUNCS(memmove getopt_long lchown setlinebuf vsnprintf setsid glob)
 
 echo $ac_n "checking for working fnmatch... $ac_c"