AC_ARG_WITH([os], [AC_HELP_STRING([--with-os=OS_TYPE], [Type of your operation system (fedora|redhat|suse)])] ) osname="" if test x"$with_os" != x ; then if test x"$with_os" = xfedora || \ test x"$with_os" = xredhat || \ test x"$with_os" = xsuse || \ test x"$with_os" = xdebian ; then osname=$with_os else AC_MSG_ERROR([Illegal value -$with_os- for option --with-os]) fi fi if test x"$osname" = x ; then if test -f /etc/fedora-release ; then osname="fedora" elif test -f /etc/redhat-release ; then osname="redhat" elif test -f /etc/SuSE-release ; then osname="suse" elif test -f /etc/debian_version ; then osname="debian" fi AC_MSG_NOTICE([Detected operating system type: $osname]) fi AM_CONDITIONAL([HAVE_FEDORA], [test x"$osname" = xfedora]) AM_CONDITIONAL([HAVE_REDHAT], [test x"$osname" = xredhat]) AM_CONDITIONAL([HAVE_SUSE], [test x"$osname" = xsuse]) AM_CONDITIONAL([HAVE_DEBIAN], [test x"$osname" = xdebian]) AC_CHECK_MEMBERS([struct ucred.pid, struct ucred.uid, struct ucred.gid], , , [[#define _GNU_SOURCE #include ]]) if test x"$ac_cv_member_struct_ucred_pid" = xyes -a \ x"$ac_cv_member_struct_ucred_uid" = xyes -a \ x"$ac_cv_member_struct_ucred_gid" = xyes ; then AC_DEFINE([HAVE_UCRED], [1], [Define if struct ucred is available]) else AC_MSG_WARN([struct ucred is not available]) fi