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