1# Check if the function is available.
2# HAVE_XXX will be defined if yes.
3
4# $1: the name of function
5# $2: the headers in where the function declared
6AC_DEFUN([AX_CHECK_DECL_EX], [dnl
7	AS_IF([test "x$2" = "x"], [AC_MSG_ERROR([header not privided])])
8	AS_VAR_PUSHDEF([have_func_var], [HAVE_[]m4_toupper($1)])
9	AC_CHECK_DECL([$1],dnl
10		[AC_DEFINE([have_func_var], [1], [Define to 1 if you have the `$1' function.])],,dnl
11		[$2]dnl
12	)
13	AS_VAR_POPDEF([have_func_var])dnl
14])
15
16AC_DEFUN([AX_CHECK_DECLS_EX], [dnl
17	AS_IF([test "x$2" = "x"], [AC_MSG_ERROR([header not privided])])
18	m4_foreach([decl],dnl
19		m4_split(m4_normalize($1)),dnl
20		[AX_CHECK_DECL_EX([decl], [$2])]dnl
21	)
22])
23