configure: Request X/Open 7 (XSI) compliance.

This is required for strndup().

diff --git a/configure.ac b/configure.ac
index a5226d278500b27048748ce77fcedbca63faaf99..ede963bd7bb582553c0ae5f0a3ac1807e171279b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -94,8 +94,8 @@ if test "x$enable_standards" = "xyes"; then
                        [Define to enforce ISO/IEC 9899:1999 (C99) compliance.])
        AC_DEFINE([_POSIX_C_SOURCE], 200112L,
                        [Define to enforce IEEE 1003.1-2001 (POSIX:2001) compliance.])
-       AC_DEFINE([_XOPEN_SOURCE], 600,
-                       [Define to enforce X/Open 6 (XSI) compliance.])
+       AC_DEFINE([_XOPEN_SOURCE], 700,
+                       [Define to enforce X/Open 7 (XSI) compliance.])
        AC_DEFINE([_REENTRANT], 1,
                        [Define to enable reentrant interfaces.])
        AC_DEFINE([_THREAD_SAFE], 1,