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dnl
dnl Check for the Linux /proc filesystem
dnl
dnl usage: AC_DNET_LINUX_PROCFS
dnl results: HAVE_LINUX_PROCFS
dnl
AC_DEFUN([AC_DNET_LINUX_PROCFS],
[AC_MSG_CHECKING(for Linux proc filesystem)
AC_CACHE_VAL(ac_cv_dnet_linux_procfs,
if test "x`cat /proc/sys/kernel/ostype 2>&-`" = "xLinux" ; then
ac_cv_dnet_linux_procfs=yes
else
ac_cv_dnet_linux_procfs=no
fi)
AC_MSG_RESULT($ac_cv_dnet_linux_procfs)
if test $ac_cv_dnet_linux_procfs = yes ; then
AC_DEFINE(HAVE_LINUX_PROCFS, 1,
[Define if you have the Linux /proc filesystem.])
fi])
dnl
dnl Check for 4.4 BSD sa_len member in sockaddr struct
dnl
dnl usage: AC_DNET_SOCKADDR_SA_LEN
dnl results: HAVE_SOCKADDR_SA_LEN (defined)
dnl
AC_DEFUN([AC_DNET_SOCKADDR_SA_LEN],
[AC_MSG_CHECKING(for sa_len in sockaddr struct)
AC_CACHE_VAL(ac_cv_dnet_sockaddr_has_sa_len,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <sys/socket.h>],
[u_int i = sizeof(((struct sockaddr *)0)->sa_len)],
ac_cv_dnet_sockaddr_has_sa_len=yes,
ac_cv_dnet_sockaddr_has_sa_len=no))
AC_MSG_RESULT($ac_cv_dnet_sockaddr_has_sa_len)
if test $ac_cv_dnet_sockaddr_has_sa_len = yes ; then
AC_DEFINE(HAVE_SOCKADDR_SA_LEN, 1,
[Define if sockaddr struct has sa_len.])
fi])
dnl
dnl ##################################################
dnl the AC_CHECK_TYPE macro only checks for a type in
dnl <sys/types.h>, <stdlib.h> and <stddef.h>. this macro
dnl in more generic and allows for arbitrary headers to
dnl be included in the search
dnl
dnl
AC_DEFUN([AC_SEARCH_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_STDINT_H
# include <stdint.h>
#endif
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#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],
[ $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, $1)
fi
])
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