| 3c0ef626 |
1 | dnl $Id$ |
| 2 | dnl |
| 3 | dnl OpenSSH-specific autoconf macros |
| 4 | dnl |
| 5 | |
| 6 | |
| 7 | dnl OSSH_CHECK_HEADER_FOR_FIELD(field, header, symbol) |
| 8 | dnl Does AC_EGREP_HEADER on 'header' for the string 'field' |
| 9 | dnl If found, set 'symbol' to be defined. Cache the result. |
| 10 | dnl TODO: This is not foolproof, better to compile and read from there |
| 11 | AC_DEFUN(OSSH_CHECK_HEADER_FOR_FIELD, [ |
| 12 | # look for field '$1' in header '$2' |
| 13 | dnl This strips characters illegal to m4 from the header filename |
| 14 | ossh_safe=`echo "$2" | sed 'y%./+-%__p_%'` |
| 15 | dnl |
| 16 | ossh_varname="ossh_cv_$ossh_safe""_has_"$1 |
| 17 | AC_MSG_CHECKING(for $1 field in $2) |
| 18 | AC_CACHE_VAL($ossh_varname, [ |
| 19 | AC_EGREP_HEADER($1, $2, [ dnl |
| 20 | eval "$ossh_varname=yes" dnl |
| 21 | ], [ dnl |
| 22 | eval "$ossh_varname=no" dnl |
| 23 | ]) dnl |
| 24 | ]) |
| 25 | ossh_result=`eval 'echo $'"$ossh_varname"` |
| 26 | if test -n "`echo $ossh_varname`"; then |
| 27 | AC_MSG_RESULT($ossh_result) |
| 28 | if test "x$ossh_result" = "xyes"; then |
| 29 | AC_DEFINE($3) |
| 30 | fi |
| 31 | else |
| 32 | AC_MSG_RESULT(no) |
| 33 | fi |
| 34 | ]) |
| 35 | |
| 36 | dnl OSSH_PATH_ENTROPY_PROG(variablename, command): |
| 37 | dnl Tidiness function, sets 'undef' if not found, and does the AC_SUBST |
| 38 | AC_DEFUN(OSSH_PATH_ENTROPY_PROG, [ |
| 39 | AC_PATH_PROG($1, $2) |
| 40 | if test -z "[$]$1" ; then |
| 41 | $1="undef" |
| 42 | fi |
| 43 | AC_SUBST($1) |
| 44 | ]) |
| 45 | |
| 46 | dnl Check for socklen_t: historically on BSD it is an int, and in |
| 47 | dnl POSIX 1g it is a type of its own, but some platforms use different |
| 48 | dnl types for the argument to getsockopt, getpeername, etc. So we |
| 49 | dnl have to test to find something that will work. |
| 50 | AC_DEFUN([TYPE_SOCKLEN_T], |
| 51 | [ |
| 52 | AC_CHECK_TYPE([socklen_t], ,[ |
| 53 | AC_MSG_CHECKING([for socklen_t equivalent]) |
| 54 | AC_CACHE_VAL([curl_cv_socklen_t_equiv], |
| 55 | [ |
| 56 | # Systems have either "struct sockaddr *" or |
| 57 | # "void *" as the second argument to getpeername |
| 58 | curl_cv_socklen_t_equiv= |
| 59 | for arg2 in "struct sockaddr" void; do |
| 60 | for t in int size_t unsigned long "unsigned long"; do |
| 61 | AC_TRY_COMPILE([ |
| 62 | #include <sys/types.h> |
| 63 | #include <sys/socket.h> |
| 64 | |
| 65 | int getpeername (int, $arg2 *, $t *); |
| 66 | ],[ |
| 67 | $t len; |
| 68 | getpeername(0,0,&len); |
| 69 | ],[ |
| 70 | curl_cv_socklen_t_equiv="$t" |
| 71 | break |
| 72 | ]) |
| 73 | done |
| 74 | done |
| 75 | |
| 76 | if test "x$curl_cv_socklen_t_equiv" = x; then |
| 77 | AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) |
| 78 | fi |
| 79 | ]) |
| 80 | AC_MSG_RESULT($curl_cv_socklen_t_equiv) |
| 81 | AC_DEFINE_UNQUOTED(socklen_t, $curl_cv_socklen_t_equiv, |
| 82 | [type to use in place of socklen_t if not defined])], |
| 83 | [#include <sys/types.h> |
| 84 | #include <sys/socket.h>]) |
| 85 | ]) |
| 86 | |
andersk / gssapi-openssh.git / blame