| dnl verbatim renamed from aclocal.m4 in rsync_3.0.7 |
| dnl 07/06/2010 - qhe |
| |
| dnl AC_VALIDATE_CACHE_SYSTEM_TYPE[(cmd)] |
| dnl if the cache file is inconsistent with the current host, |
| dnl target and build system types, execute CMD or print a default |
| dnl error message. |
| AC_DEFUN(AC_VALIDATE_CACHE_SYSTEM_TYPE, [ |
| AC_REQUIRE([AC_CANONICAL_SYSTEM]) |
| AC_MSG_CHECKING([config.cache system type]) |
| if { test x"${ac_cv_host_system_type+set}" = x"set" && |
| test x"$ac_cv_host_system_type" != x"$host"; } || |
| { test x"${ac_cv_build_system_type+set}" = x"set" && |
| test x"$ac_cv_build_system_type" != x"$build"; } || |
| { test x"${ac_cv_target_system_type+set}" = x"set" && |
| test x"$ac_cv_target_system_type" != x"$target"; }; then |
| AC_MSG_RESULT([different]) |
| ifelse($#, 1, [$1], |
| [AC_MSG_ERROR(["you must remove config.cache and restart configure"])]) |
| else |
| AC_MSG_RESULT([same]) |
| fi |
| ac_cv_host_system_type="$host" |
| ac_cv_build_system_type="$build" |
| ac_cv_target_system_type="$target" |
| ]) |
| |
| dnl Check for socklen_t: historically on BSD it is an int, and in |
| dnl POSIX 1g it is a type of its own, but some platforms use different |
| dnl types for the argument to getsockopt, getpeername, etc. So we |
| dnl have to test to find something that will work. |
| |
| dnl This is no good, because passing the wrong pointer on C compilers is |
| dnl likely to only generate a warning, not an error. We don't call this at |
| dnl the moment. |
| |
| AC_DEFUN([TYPE_SOCKLEN_T], |
| [ |
| AC_CHECK_TYPE([socklen_t], ,[ |
| AC_MSG_CHECKING([for socklen_t equivalent]) |
| AC_CACHE_VAL([rsync_cv_socklen_t_equiv], |
| [ |
| # Systems have either "struct sockaddr *" or |
| # "void *" as the second argument to getpeername |
| rsync_cv_socklen_t_equiv= |
| for arg2 in "struct sockaddr" void; do |
| for t in int size_t unsigned long "unsigned long"; do |
| AC_TRY_COMPILE([ |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| |
| int getpeername (int, $arg2 *, $t *); |
| ],[ |
| $t len; |
| getpeername(0,0,&len); |
| ],[ |
| rsync_cv_socklen_t_equiv="$t" |
| break |
| ]) |
| done |
| done |
| |
| if test "x$rsync_cv_socklen_t_equiv" = x; then |
| AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) |
| fi |
| ]) |
| AC_MSG_RESULT($rsync_cv_socklen_t_equiv) |
| AC_DEFINE_UNQUOTED(socklen_t, $rsync_cv_socklen_t_equiv, |
| [type to use in place of socklen_t if not defined])], |
| [#include <sys/types.h> |
| #include <sys/socket.h>]) |
| ]) |
| |
| dnl AC_HAVE_TYPE(TYPE,INCLUDES) |
| AC_DEFUN([AC_HAVE_TYPE], [ |
| AC_REQUIRE([AC_HEADER_STDC]) |
| cv=`echo "$1" | sed 'y%./+- %__p__%'` |
| AC_MSG_CHECKING(for $1) |
| AC_CACHE_VAL([ac_cv_type_$cv], |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
| AC_INCLUDES_DEFAULT |
| $2]], |
| [[$1 foo;]])], |
| [eval "ac_cv_type_$cv=yes"], |
| [eval "ac_cv_type_$cv=no"]))dnl |
| ac_foo=`eval echo \\$ac_cv_type_$cv` |
| AC_MSG_RESULT($ac_foo) |
| if test "$ac_foo" = yes; then |
| ac_tr_hdr=HAVE_`echo $1 | sed 'y%abcdefghijklmnopqrstuvwxyz./- %ABCDEFGHIJKLMNOPQRSTUVWXYZ____%'` |
| if false; then |
| AC_CHECK_TYPES($1) |
| fi |
| AC_DEFINE_UNQUOTED($ac_tr_hdr, 1, [Define if you have type `$1']) |
| fi |
| ]) |