freebsd-dev/crypto/kerberosIV/cf/have-struct-field.m4
1999-09-19 14:19:32 +00:00

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539 B
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dnl $Id: have-struct-field.m4,v 1.5 1999/03/01 13:10:35 joda Exp $
dnl
dnl check for fields in a structure
dnl
dnl AC_HAVE_STRUCT_FIELD(struct, field, headers)
AC_DEFUN(AC_HAVE_STRUCT_FIELD, [
define(cache_val, translit(ac_cv_type_$1_$2, [A-Z ], [a-z_]))
AC_CACHE_CHECK([for $2 in $1], cache_val,[
AC_TRY_COMPILE([$3],[$1 x; x.$2;],
cache_val=yes,
cache_val=no)])
if test "$cache_val" = yes; then
define(foo, translit(HAVE_$1_$2, [a-z ], [A-Z_]))
AC_DEFINE(foo, 1, [Define if $1 has field $2.])
undefine(foo)
fi
undefine(cache_val)
])