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Commit | Line | Data |
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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 |