diff --git a/configure.in b/configure.in
index 42831eb68..c91dfe1d0 100644
--- a/configure.in
+++ b/configure.in
@@ -727,7 +727,7 @@ fi
 AC_MSG_RESULT(unsigned $glib_size_type)
 
 # Check for some functions
-AC_CHECK_FUNCS(lstat strerror strsignal memmove mkstemp vsnprintf stpcpy strcasecmp strncasecmp poll getcwd nanosleep vasprintf unsetenv getc_unlocked)
+AC_CHECK_FUNCS(lstat strerror strsignal memmove mkstemp vsnprintf stpcpy strcasecmp strncasecmp poll getcwd nanosleep vasprintf setenv unsetenv getc_unlocked readlink symlink)
 
 AC_FUNC_VSNPRINTF_C99
 AC_FUNC_PRINTF_UNIX98