| Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | dnl verbatim renamed from aclocal.m4 in rsync_3.0.7 |
| 2 | dnl 07/06/2010 - qhe |
| 3 | |
| 4 | dnl AC_VALIDATE_CACHE_SYSTEM_TYPE[(cmd)] |
| 5 | dnl if the cache file is inconsistent with the current host, |
| 6 | dnl target and build system types, execute CMD or print a default |
| 7 | dnl error message. |
| 8 | AC_DEFUN(AC_VALIDATE_CACHE_SYSTEM_TYPE, [ |
| 9 | AC_REQUIRE([AC_CANONICAL_SYSTEM]) |
| 10 | AC_MSG_CHECKING([config.cache system type]) |
| 11 | if { test x"${ac_cv_host_system_type+set}" = x"set" && |
| 12 | test x"$ac_cv_host_system_type" != x"$host"; } || |
| 13 | { test x"${ac_cv_build_system_type+set}" = x"set" && |
| 14 | test x"$ac_cv_build_system_type" != x"$build"; } || |
| 15 | { test x"${ac_cv_target_system_type+set}" = x"set" && |
| 16 | test x"$ac_cv_target_system_type" != x"$target"; }; then |
| 17 | AC_MSG_RESULT([different]) |
| 18 | ifelse($#, 1, [$1], |
| 19 | [AC_MSG_ERROR(["you must remove config.cache and restart configure"])]) |
| 20 | else |
| 21 | AC_MSG_RESULT([same]) |
| 22 | fi |
| 23 | ac_cv_host_system_type="$host" |
| 24 | ac_cv_build_system_type="$build" |
| 25 | ac_cv_target_system_type="$target" |
| 26 | ]) |
| 27 | |
| 28 | dnl Check for socklen_t: historically on BSD it is an int, and in |
| 29 | dnl POSIX 1g it is a type of its own, but some platforms use different |
| 30 | dnl types for the argument to getsockopt, getpeername, etc. So we |
| 31 | dnl have to test to find something that will work. |
| 32 | |
| 33 | dnl This is no good, because passing the wrong pointer on C compilers is |
| 34 | dnl likely to only generate a warning, not an error. We don't call this at |
| 35 | dnl the moment. |
| 36 | |
| 37 | AC_DEFUN([TYPE_SOCKLEN_T], |
| 38 | [ |
| 39 | AC_CHECK_TYPE([socklen_t], ,[ |
| 40 | AC_MSG_CHECKING([for socklen_t equivalent]) |
| 41 | AC_CACHE_VAL([rsync_cv_socklen_t_equiv], |
| 42 | [ |
| 43 | # Systems have either "struct sockaddr *" or |
| 44 | # "void *" as the second argument to getpeername |
| 45 | rsync_cv_socklen_t_equiv= |
| 46 | for arg2 in "struct sockaddr" void; do |
| 47 | for t in int size_t unsigned long "unsigned long"; do |
| 48 | AC_TRY_COMPILE([ |
| 49 | #include <sys/types.h> |
| 50 | #include <sys/socket.h> |
| 51 | |
| 52 | int getpeername (int, $arg2 *, $t *); |
| 53 | ],[ |
| 54 | $t len; |
| 55 | getpeername(0,0,&len); |
| 56 | ],[ |
| 57 | rsync_cv_socklen_t_equiv="$t" |
| 58 | break |
| 59 | ]) |
| 60 | done |
| 61 | done |
| 62 | |
| 63 | if test "x$rsync_cv_socklen_t_equiv" = x; then |
| 64 | AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) |
| 65 | fi |
| 66 | ]) |
| 67 | AC_MSG_RESULT($rsync_cv_socklen_t_equiv) |
| 68 | AC_DEFINE_UNQUOTED(socklen_t, $rsync_cv_socklen_t_equiv, |
| 69 | [type to use in place of socklen_t if not defined])], |
| 70 | [#include <sys/types.h> |
| 71 | #include <sys/socket.h>]) |
| 72 | ]) |
| 73 | |
| 74 | dnl AC_HAVE_TYPE(TYPE,INCLUDES) |
| 75 | AC_DEFUN([AC_HAVE_TYPE], [ |
| 76 | AC_REQUIRE([AC_HEADER_STDC]) |
| 77 | cv=`echo "$1" | sed 'y%./+- %__p__%'` |
| 78 | AC_MSG_CHECKING(for $1) |
| 79 | AC_CACHE_VAL([ac_cv_type_$cv], |
| 80 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
| 81 | AC_INCLUDES_DEFAULT |
| 82 | $2]], |
| 83 | [[$1 foo;]])], |
| 84 | [eval "ac_cv_type_$cv=yes"], |
| 85 | [eval "ac_cv_type_$cv=no"]))dnl |
| 86 | ac_foo=`eval echo \\$ac_cv_type_$cv` |
| 87 | AC_MSG_RESULT($ac_foo) |
| 88 | if test "$ac_foo" = yes; then |
| 89 | ac_tr_hdr=HAVE_`echo $1 | sed 'y%abcdefghijklmnopqrstuvwxyz./- %ABCDEFGHIJKLMNOPQRSTUVWXYZ____%'` |
| 90 | if false; then |
| 91 | AC_CHECK_TYPES($1) |
| 92 | fi |
| 93 | AC_DEFINE_UNQUOTED($ac_tr_hdr, 1, [Define if you have type `$1']) |
| 94 | fi |
| 95 | ]) |