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46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
dnl $Id: aclocal.m4,v 1.2 2000/05/08 10:49:37 damien Exp $
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dnl
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dnl OpenSSH-specific autoconf macros
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dnl
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dnl OSSH_CHECK_HEADER_FOR_FIELD(field, header, symbol)
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dnl Does AC_EGREP_HEADER on 'header' for the string 'field'
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dnl If found, set 'symbol' to be defined. Cache the result.
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dnl TODO: This is not foolproof, better to compile and read from there
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AC_DEFUN(OSSH_CHECK_HEADER_FOR_FIELD, [
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# look for field '$1' in header '$2'
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dnl This strips characters illegal to m4 from the header filename
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ossh_safe=`echo "$2" | sed 'y%./+-%__p_%'`
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dnl
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ossh_varname="ossh_cv_$ossh_safe""_has_"$1
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AC_MSG_CHECKING(for $1 field in $2)
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AC_CACHE_VAL($ossh_varname, [
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AC_EGREP_HEADER($1, $2, [ dnl
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eval "$ossh_varname=yes" dnl
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], [ dnl
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eval "$ossh_varname=no" dnl
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]) dnl
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])
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ossh_result=`eval "echo "$"$ossh_varname"`
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if test -n "`echo $ossh_varname`"; then
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AC_MSG_RESULT($ossh_result)
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if test "x$ossh_result" = "xyes"; then
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AC_DEFINE($3)
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fi
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else
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AC_MSG_RESULT(no)
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fi
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])
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dnl OSSH_PATH_ENTROPY_PROG(variablename, command):
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dnl Tidiness function, sets 'undef' if not found, and does the AC_SUBST
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AC_DEFUN(OSSH_PATH_ENTROPY_PROG, [
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AC_PATH_PROG($1, $2)
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if test -z "[$]$1" ; then
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$1="undef"
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fi
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AC_SUBST($1)
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])
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