Do not invoke AC_CHECK_FUNCS with strerror_r, as
AC_FUNC_STRERROR_R does that.
-#serial 3
+#serial 4
dnl FIXME: put these prerequisite-only *.m4 files in a separate
dnl directory -- otherwise, they'll conflict with existing files.
dnl These are the prerequisite macros for GNU's error.c file.
AC_DEFUN([jm_PREREQ_ERROR],
[
- AC_CHECK_FUNCS(strerror strerror_r vprintf doprnt)
+ AC_CHECK_FUNCS(strerror vprintf doprnt)
+ AC_CHECK_DECLS([strerror])
AC_FUNC_STRERROR_R
AC_HEADER_STDC
])