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271 lines
7.4 KiB
Plaintext
271 lines
7.4 KiB
Plaintext
dnl $Id$
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dnl Macros beginning with CF_ (mostly) stolen from Lynx
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dnl Thanks to "T.E.Dickey" <dickey@clark.net>
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dnl ---------------------------------------------------------------------------
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dnl Make an uppercase version of a variable
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dnl $1=uppercase($2)
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AC_DEFUN([CF_UPPER],
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[
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changequote(,)dnl
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$1=`echo $2 | tr '[a-z]' '[A-Z]'`
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changequote([,])dnl
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Check for existence of external data in the current set of libraries. If
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dnl we can modify it, it's real enough.
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dnl $1 = the name to check
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dnl $2 = its type
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AC_DEFUN([CF_CHECK_EXTERN_DATA],
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[
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AC_MSG_CHECKING(if external $1 exists)
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AC_CACHE_VAL(cf_cv_have_$1,[
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AC_TRY_LINK([
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#undef $1
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extern $2 $1;
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],
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[$1 = 2],
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[eval 'cf_cv_have_'$1'=yes'],
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[eval 'cf_cv_have_'$1'=no'])])
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eval 'cf_result=$cf_cv_have_'$1
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AC_MSG_RESULT($cf_result)
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if test "$cf_result" = yes ; then
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eval 'cf_result=HAVE_'$1
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CF_UPPER(cf_result,$cf_result)
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AC_DEFINE_UNQUOTED($cf_result)
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fi
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
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dnl the 'errno' variable. Define a DECL_xxx symbol if we must declare it
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dnl ourselves.
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dnl
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dnl (I would use AC_CACHE_CHECK here, but it will not work when called in a
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dnl loop from CF_SYS_ERRLIST).
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dnl
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dnl $1 = the name to check
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AC_DEFUN([CF_CHECK_ERRNO],
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[
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AC_MSG_CHECKING(if external $1 is declared)
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AC_CACHE_VAL(cf_cv_dcl_$1,[
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AC_TRY_COMPILE([
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include <stdio.h>
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#include <sys/types.h>
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#include <errno.h> ],
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[long x = (long) $1],
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[eval 'cf_cv_dcl_'$1'=yes'],
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[eval 'cf_cv_dcl_'$1'=no]')
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])
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eval 'cf_result=$cf_cv_dcl_'$1
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AC_MSG_RESULT($cf_result)
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if test "$cf_result" = no ; then
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eval 'cf_result=DECL_'$1
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CF_UPPER(cf_result,$cf_result)
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AC_DEFINE_UNQUOTED($cf_result)
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fi
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# It's possible (for near-UNIX clones) that the data doesn't exist
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CF_CHECK_EXTERN_DATA($1,int)
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])dnl
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dnl Useful macros to check libraries which are not implicit
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dnl in Solaris, for instance.
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AC_DEFUN([CF_LIB_NSL],
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[
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AC_CHECK_LIB(nsl,gethostbyname,
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[
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AC_MSG_CHECKING(if libnsl is mandatory)
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AC_TRY_LINK([#include <sys/types.h>
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#include <netinet/in.h>
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char *domain; ],
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[gethostbyname(domain)], dnl
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[AC_MSG_RESULT(no)], dnl
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[AC_MSG_RESULT(yes); LIBS="${LIBS} -lnsl"])
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])
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])
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AC_DEFUN([CF_LIB_SOCKET],
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[
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AC_CHECK_LIB(socket,socket,
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[
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AC_MSG_CHECKING(if libsocket is mandatory)
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AC_TRY_LINK([#include <sys/types.h>
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#include <netinet/in.h>
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union
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{
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HEADER hdr;
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u_char buf[512];
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}
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response;
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char *domain;
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int requested_type; ],
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[socket (AF_INET, SOCK_STREAM, 0) ], dnl
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[AC_MSG_RESULT(no)], dnl
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[AC_MSG_RESULT(yes); LIBS="${LIBS} -lsocket"])
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])
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])
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AC_DEFUN([CF_LIB_MATH],
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[
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AC_CHECK_LIB(m,pow,
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[
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AC_MSG_CHECKING(if libmath is mandatory)
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AC_TRY_LINK([#include <math.h>
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double a,b; ],
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[pow(a,b)], dnl
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[AC_MSG_RESULT(no)], dnl
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[AC_MSG_RESULT(yes); LIBS="${LIBS} -lm"])
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])
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])
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dnl Check the port name for HTTP. Everyone should declare "http" but
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dnl not everyone does. This test is BUGgy, we should use a program
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dnl which calls getservbyname() otherwise we miss NIS tables, for
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dnl instance.
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AC_DEFUN([CF_CHECK_SERVICES],
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[
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AC_MSG_CHECKING(what is the name of the HTTP port in your services database)
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dnl BUG: We should test it is really the good port and not any mention of "http"
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if grep http /etc/services > /dev/null; then
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AC_DEFINE(HTTP_TCP_PORT,"http")
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AC_MSG_RESULT(http)
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else
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dnl BUG: Trap on Solaris with a port whose name begins with "www"...
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if grep www /etc/services > /dev/null; then
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AC_DEFINE(HTTP_TCP_PORT,"www")
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AC_MSG_RESULT(www)
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else
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AC_DEFINE(HTTP_TCP_PORT,"undefined:use_:80")
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AC_MSG_RESULT([undefined, you should add it in your database])
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fi
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fi
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AC_MSG_CHECKING(what is the name of the ICP port in your services database)
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if grep icp /etc/services > /dev/null; then
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AC_DEFINE(ICP_UDP_PORT,"icp")
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AC_MSG_RESULT(icp)
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else
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AC_DEFINE(ICP_UDP_PORT,"undefined:use_:3130")
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AC_MSG_RESULT([undefined, you should add it in your database])
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fi
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])
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# Check GNU libidn
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# TODO: check the patched libc with AI_IDN. See libidn, in libc/getaddrinfo-idn.txt.
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AC_DEFUN([CF_LIB_LIBIDN],
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[
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AC_CHECK_LIB(idn,idna_to_ascii_8z,
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[LIBS="${LIBS} -lidn"],
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[AC_ERROR([Get the GNU libidn library (http://www.josefsson.org/libidn/) in order to use Unicode - multi-script - domain names or use --without-libidn to disable it])], dnl
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)])
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# Check OpenSSL
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AC_DEFUN([CF_LIB_OPENSSL],
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[
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AC_CHECK_LIB(ssl,SSL_CTX_new,
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[LIBS="${LIBS} -lssl -lcrypto"],
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[AC_ERROR([Get the OpenSSL library (http://www.openssl.org/)])], dnl
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-lcrypto
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)])
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# Check GNU TLS
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AC_DEFUN([CF_LIB_GNUTLS],
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[
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AC_CHECK_LIB(gnutls,gnutls_global_init,
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[LIBS="${LIBS} `libgnutls-config --libs`"],
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[AC_ERROR([Get the GNU TLS library (http://www.gnutls.org/)])], dnl
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)])
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dnl experimental
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AC_DEFUN([CF_CHECK_TCP_SERVICE],
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[
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AC_TRY_RUN([
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <netdb.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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int
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main (argc, argv)
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int argc;
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char *argv[];
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{
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struct servent *sp;
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if ((sp = getservbyname ("$1", "tcp")) == 0)
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exit (1);
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else
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exit (0);
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}
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],
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ac_last_port=$1
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,
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ac_last_port=
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)])
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dnl Our (W. Richard Stevens') macro to check for a function prototype in
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dnl a given header.
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AC_DEFUN([AC_CHECK_FUNC_PROTO],
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[AC_CACHE_CHECK(for $1 function prototype in $2, ac_cv_have_$1_proto,
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AC_EGREP_HEADER($1, $2,
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ac_cv_have_$1_proto=yes,
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ac_cv_have_$1_proto=no))
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if test $ac_cv_have_$1_proto = yes ; then
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ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`_PROTO
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AC_DEFINE_UNQUOTED($ac_tr_func)
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fi
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])
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dnl BROKEN: do not use
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dnl Copied from autoconf and edited to add an argument: an include file
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dnl AC_CHECK_FUNC_WITH_HEADER(FUNCTION, HEADER, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
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AC_DEFUN([AC_CHECK_FUNC_WITH_HEADER],
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[AC_MSG_CHECKING([for $1])
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AC_CACHE_VAL(ac_cv_func_$1,
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[AC_TRY_LINK(
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dnl Don't include <ctype.h> because on OSF/1 3.0 it includes <sys/types.h>
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dnl which includes <sys/select.h> which contains a prototype for
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dnl select. Similarly for bzero.
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[/* System header to define __stub macros and hopefully few prototypes,
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which can conflict with char $1(); below. */
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#include <assert.h>
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/* Override any gcc2 internal prototype to avoid an error. */
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]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
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extern "C"
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#endif
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])dnl
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[/* We use char because int might match the return type of a gcc2
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builtin and then its argument prototype would still apply. */
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char $1();
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#include <$2>
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], [
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/* The GNU C library defines this for functions which it implements
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to always fail with ENOSYS. Some functions are actually named
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something starting with __ and the normal name is an alias. */
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#if defined (__stub_$1) || defined (__stub___$1)
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choke me
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#else
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$1();
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#endif
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], eval "ac_cv_func_$1=yes", eval "ac_cv_func_$1=no")])
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if eval "test \"`echo '$ac_cv_func_'$1`\" = yes"; then
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AC_MSG_RESULT(yes)
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ifelse([$3], , :, [$3])
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else
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AC_MSG_RESULT(no)
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ifelse([$4], , , [$4
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])dnl
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fi
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])
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