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dnl Taken from Unix Network Programming, W. Richard Stevens
dnl ##################################################################
dnl We cannot use the AC_CHECK_TYPE macros becasue AC_CHECK_TYPE
dnl #includes only <sys/types.h>, <stdlib.h>, and <stddef.h>.
dnl Unfortunately, many implementations today hide typedefs in wierd
dnl locations: Solaris 2.5.1 has uint8_t and uint32_t in <pthread.h>.
dnl SunOS 4.1.x has int8_t in <sys/bittypes.h>.
dnl So we define our own macro AC_UNP_CHECK_TYPE that does the same
dnl #includes as "unp.h", and then looks for the typedef.
dnl
dnl This macro should be invoked after all the header checks have been
dnl performed, since we #include "confdefs.h" below, and then use the
dnl HAVE_foo_H values that is can #define.
dnl
AC_DEFUN(AC_UNP_CHECK_TYPE,
[AC_MSG_CHECKING(if $1 defined)
AC_CACHE_VAL(ac_cv_type_$1,
AC_TRY_COMPILE(
[
#include "confdefs.h" /* the header built by configure so far */
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_ERRNO_H
# include <errno.h>
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_SIGNAL_H
# include <signal.h>
#endif
#ifdef HAVE_STDIO_H
# include <stdio.h>
#endif
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_SYS_UIO_H
# include <sys/uio.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#ifdef HAVE_SYS_UN_H
# include <sys/un.h>
#endif
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
#endif
#ifdef HAVE_PTHREAD_H
# include <pthread.h>
#endif
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
],
[ $1 foo ],
ac_cv_type_$1=yes,
ac_cv_type_$1=no))
AC_MSG_RESULT($ac_cv_type_$1)
if test $ac_cv_type_$1 = no ; then
AC_DEFINE($1, $2)
fi
])
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