neon.m4

linux subdivision ying gai ke yi le ba

  $ac_cv_sizeof_long_long) ne_cv_fmt_$1="ll]ne_spec[" ;;
  esac
fi
])

if test "x$ne_cv_fmt_$1" = "xnone"; then
  AC_MSG_ERROR([format string for $1 not found])
fi

AC_DEFINE_UNQUOTED([NE_FMT_]translit($1, a-z, A-Z), "$ne_cv_fmt_$1", 
	[Define to be printf format string for $1])
])

dnl Wrapper for AC_CHECK_FUNCS; uses libraries from $NEON_LIBS.
AC_DEFUN([NE_CHECK_FUNCS], [
ne_cf_save_LIBS=$LIBS
LIBS="$LIBS $NEON_LIBS"
AC_CHECK_FUNCS($@)
LIBS=$ne_cf_save_LIBS])

dnl Checks needed when compiling the neon source.
AC_DEFUN([LIBNEON_SOURCE_CHECKS], [

dnl Run all the normal C language/compiler tests
AC_REQUIRE([NEON_COMMON_CHECKS])

dnl Needed for building the MD5 code.
AC_REQUIRE([AC_C_BIGENDIAN])
dnl Is strerror_r present; if so, which variant
AC_REQUIRE([AC_FUNC_STRERROR_R])

AC_CHECK_HEADERS([strings.h sys/time.h limits.h sys/select.h arpa/inet.h \
	signal.h sys/socket.h netinet/in.h netinet/tcp.h netdb.h])

AC_REQUIRE([NE_SNPRINTF])

AC_REPLACE_FUNCS(strcasecmp)

AC_CHECK_FUNCS(signal setvbuf setsockopt stpcpy)

if test "$ac_cv_func_stpcpy" = "yes"; then
  AC_CHECK_DECLS(stpcpy)
fi

# Modern AIXes with the "Linux-like" libc have an undeclared stpcpy
AH_BOTTOM([#if defined(HAVE_STPCPY) && !HAVE_DECL_STPCPY && !defined(stpcpy)
char *stpcpy(char *, const char *);
#endif])

# Unixware 7 can only link gethostbyname with -lnsl -lsocket
# Pick up -lsocket first, then the gethostbyname check will work.
# QNX has gethostbyname in -lsocket. BeOS only has it in -lbind.
NE_SEARCH_LIBS(socket, socket inet)
NE_SEARCH_LIBS(gethostbyname, socket nsl bind)

# Enable getaddrinfo() support only if all the necessary functions
# are found.
ne_enable_gai=yes
NE_CHECK_FUNCS(getaddrinfo gai_strerror inet_ntop,,[ne_enable_gai=no; break])
if test $ne_enable_gai = yes; then
   AC_DEFINE(USE_GETADDRINFO, 1, [Define if getaddrinfo() should be used])
   AC_CACHE_CHECK([for working AI_ADDRCONFIG], [ne_cv_gai_addrconfig], [
   AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <netdb.h>],
[struct addrinfo hints = {0}, *result;
hints.ai_flags = AI_ADDRCONFIG;
if (getaddrinfo("localhost", NULL, &hints, &result) != 0) return 1;])],
   ne_cv_gai_addrconfig=yes, ne_cv_gai_addrconfig=no)])
   if test $ne_cv_gai_addrconfig = yes; then
      AC_DEFINE(USE_GAI_ADDRCONFIG, 1, [Define if getaddrinfo supports AI_ADDRCONFIG])
   fi
else
   # Checks for non-getaddrinfo() based resolver interfaces.
   NE_SEARCH_LIBS(hstrerror, resolv,,[:])
   NE_CHECK_FUNCS(hstrerror)
   # Older Unixes don't declare h_errno.
   AC_CHECK_DECL(h_errno,,,[#define _XOPEN_SOURCE_EXTENDED 1
#include <netdb.h>])
fi

AC_CHECK_MEMBERS(struct tm.tm_gmtoff,,
AC_MSG_WARN([no timezone handling in date parsing on this platform]),
[#include <time.h>])

ifdef([neon_no_zlib], [
    neon_zlib_message="zlib disabled"
    NEON_SUPPORTS_ZLIB=no
], [
    NEON_ZLIB()
])

# Conditionally enable ACL support
AC_MSG_CHECKING([whether to enable ACL support in neon])
if test "x$neon_no_acl" = "xyes"; then
    AC_MSG_RESULT(no)
else
    AC_MSG_RESULT(yes)
    NEON_EXTRAOBJS="$NEON_EXTRAOBJS ne_acl"
fi

NEON_SSL()
NEON_SOCKS()
NEON_GSSAPI()

AC_SUBST(NEON_CFLAGS)
AC_SUBST(NEON_LIBS)
AC_SUBST(NEON_LTLIBS)

])

dnl Call to put lib/snprintf.o in LIBOBJS and define HAVE_SNPRINTF_H
dnl if snprintf isn't in libc.

AC_DEFUN([NEON_REPLACE_SNPRINTF], [
# Check for snprintf
AC_CHECK_FUNC(snprintf,,[
	AC_DEFINE(HAVE_SNPRINTF_H, 1, [Define if need to include snprintf.h])
	AC_LIBOBJ(lib/snprintf)])
])

dnl turn off webdav, boo hoo.
AC_DEFUN([NEON_WITHOUT_WEBDAV], [
neon_no_webdav=yes
neon_no_acl=yes
NEON_NEED_XML_PARSER=no
neon_xml_parser_message="none needed"
])

dnl Turn off zlib support
AC_DEFUN([NEON_WITHOUT_ZLIB], [
define(neon_no_zlib, yes)
])

AC_DEFUN([NEON_WITHOUT_ACL], [
# Turn off ACL support
neon_no_acl=yes
])

dnl Common macro to NEON_LIBTOOL_BUILD and NEON_NORMAL_BUILD
dnl Sets NEONOBJS appropriately if it has not already been set.
dnl 
dnl NOT FOR EXTERNAL USE: use LIBTOOL_BUILD or NORMAL_BUILD.
dnl

AC_DEFUN([NEON_COMMON_BUILD], [

# Using the default set of object files to build.
# Add the extension to EXTRAOBJS
ne="$NEON_EXTRAOBJS"
NEON_EXTRAOBJS=
for o in $ne; do
	NEON_EXTRAOBJS="$NEON_EXTRAOBJS $o.$NEON_OBJEXT"
done	

AC_MSG_CHECKING(whether to enable WebDAV support in neon)

dnl Did they want DAV support?
if test "x$neon_no_webdav" = "xyes"; then
  # No WebDAV support
  AC_MSG_RESULT(no)
  NEONOBJS="$NEONOBJS \$(NEON_BASEOBJS)"
  NEON_CFLAGS="$NEON_CFLAGS -DNEON_NODAV"
  NEON_SUPPORTS_DAV=no
  AC_DEFINE(NEON_NODAV, 1, [Enable if built without WebDAV support])
else
  # WebDAV support
  NEON_SUPPORTS_DAV=yes
  NEONOBJS="$NEONOBJS \$(NEON_DAVOBJS)"
  # Turn on DAV locking please then.
  AC_DEFINE(USE_DAV_LOCKS, 1, [Support WebDAV locking through the library])

  AC_MSG_RESULT(yes)

fi

AC_SUBST(NEON_TARGET)
AC_SUBST(NEON_OBJEXT)
AC_SUBST(NEONOBJS)
AC_SUBST(NEON_EXTRAOBJS)
AC_SUBST(NEON_LINK_FLAGS)
AC_SUBST(NEON_SUPPORTS_DAV)

])

# The libtoolized build case:
AC_DEFUN([NEON_LIBTOOL_BUILD], [

NEON_TARGET=libneon.la
NEON_OBJEXT=lo

NEON_COMMON_BUILD($#, $*)

])

dnl Find 'ar' and 'ranlib', fail if ar isn't found.
AC_DEFUN([NE_FIND_AR], [

# Search in /usr/ccs/bin for Solaris
ne_PATH=$PATH:/usr/ccs/bin
AC_PATH_TOOL(AR, ar, notfound, $ne_PATH)
if test "x$AR" = "xnotfound"; then
   AC_MSG_ERROR([could not find ar tool])
fi
AC_PATH_TOOL(RANLIB, ranlib, :, $ne_PATH)

])

# The non-libtool build case:
AC_DEFUN([NEON_NORMAL_BUILD], [

NEON_TARGET=libneon.a
NEON_OBJEXT=o

AC_REQUIRE([NE_FIND_AR])

NEON_COMMON_BUILD($#, $*)

])

AC_DEFUN([NE_SNPRINTF], [
AC_CHECK_FUNCS(snprintf vsnprintf,,[
   ne_save_LIBS=$LIBS
   LIBS="$LIBS -lm"    # Always need -lm
   AC_CHECK_LIB(trio, trio_vsnprintf,
   [AC_CHECK_HEADERS(trio.h,,
    AC_MSG_ERROR([trio installation problem? libtrio found but not trio.h]))
    AC_MSG_NOTICE(using trio printf replacement library)
    NEON_LIBS="$NEON_LIBS -ltrio -lm"
    NEON_CFLAGS="$NEON_CFLAGS -DNEON_TRIO"],
   [AC_MSG_NOTICE([no vsnprintf/snprintf detected in C library])
    AC_MSG_ERROR([Install the trio library from http://daniel.haxx.se/trio/])])
   LIBS=$ne_save_LIBS
   break
])])

dnl Usage: NE_CHECK_SSLVER(variable, version-string, version-hex)
dnl Define 'variable' to 'yes' if OpenSSL version is >= version-hex
AC_DEFUN([NE_CHECK_SSLVER], [
AC_CACHE_CHECK([OpenSSL version is >= $2], $1, [
AC_EGREP_CPP(good, [#include <openssl/opensslv.h>
#if OPENSSL_VERSION_NUMBER >= $3
good
#endif], [$1=yes], [$1=no])])])

dnl Less noisy replacement for PKG_CHECK_MODULES
AC_DEFUN([NE_PKG_CONFIG], [

AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
if test "$PKG_CONFIG" = "no"; then
   : Not using pkg-config
   $4
else
   AC_CACHE_CHECK([for $2 pkg-config data], ne_cv_pkg_$2,
     [if $PKG_CONFIG $2; then
        ne_cv_pkg_$2=yes
      else
        ne_cv_pkg_$2=no
      fi])

   if test "$ne_cv_pkg_$2" = "yes"; then
      $1_CFLAGS=`$PKG_CONFIG --cflags $2`
      $1_LIBS=`$PKG_CONFIG --libs $2`
      : Using provided pkg-config data
      $3
   else
      : No pkg-config for $2 provided
      $4
   fi
fi])

dnl Check for OpenSSL
AC_DEFUN([NEON_SSL], [

AC_ARG_WITH(ssl, [AC_HELP_STRING([--with-ssl], [enable OpenSSL support])])

AC_ARG_WITH(egd,
[[  --with-egd[=PATH]       enable EGD support [using EGD socket at PATH]]])

case $with_ssl in
yes)

   NE_PKG_CONFIG(NE_SSL, openssl,
    [AC_MSG_NOTICE(using SSL library configuration from pkg-config)
     CPPFLAGS="$CPPFLAGS ${NE_SSL_CFLAGS}"
     NEON_LIBS="$NEON_LIBS ${NE_SSL_LIBS}"],
    [# libcrypto may require -ldl if using the OpenSSL ENGINE branch
     NE_SEARCH_LIBS(RSA_new, crypto, -ldl)
     NE_SEARCH_LIBS(SSL_library_init, ssl)])

   AC_CHECK_HEADERS(openssl/ssl.h openssl/opensslv.h,,
   [AC_MSG_ERROR([OpenSSL headers not found, cannot enable SSL support])])

   # Enable EGD support if using 0.9.7 or newer
   NE_CHECK_SSLVER(ne_cv_lib_ssl097, 0.9.7, 0x00907000L)
   if test "$ne_cv_lib_ssl097" = "yes"; then
      AC_MSG_NOTICE([OpenSSL >= 0.9.7; EGD support not needed in neon])
      neon_ssl_message="OpenSSL (0.9.7 or later)"
   else
      # Fail if OpenSSL is older than 0.9.6
      NE_CHECK_SSLVER(ne_cv_lib_ssl096, 0.9.6, 0x00906000L)
      if test "$ne_cv_lib_ssl096" != "yes"; then
         AC_MSG_ERROR([OpenSSL 0.9.6 or later is required])
      fi
      neon_ssl_message="OpenSSL (0.9.6 or later)"

      case "$with_egd" in
      yes|no) ne_cv_lib_sslegd=$with_egd ;;
      /*) ne_cv_lib_sslegd=yes
          AC_DEFINE_UNQUOTED([EGD_PATH], "$with_egd", 
			     [Define to specific EGD socket path]) ;;
      *) # Guess whether EGD support is needed
         AC_CACHE_CHECK([whether to enable EGD support], [ne_cv_lib_sslegd],
	 [if test -r /dev/random || test -r /dev/urandom; then
	    ne_cv_lib_sslegd=no
	  else
	    ne_cv_lib_sslegd=yes
	  fi])
	 ;;
      esac
      if test "$ne_cv_lib_sslegd" = "yes"; then
        AC_MSG_NOTICE([EGD support enabled for seeding OpenSSL PRNG])
        AC_DEFINE([ENABLE_EGD], 1, [Define if EGD should be supported])
      fi
   fi

   NEON_SUPPORTS_SSL=yes
   NEON_CFLAGS="$NEON_CFLAGS -DNEON_SSL"
   NEON_EXTRAOBJS="$NEON_EXTRAOBJS ne_openssl"
   ;;
*) # Default to off; only create crypto-enabled binaries if requested.
   neon_ssl_message="No SSL support"
   NEON_SUPPORTS_SSL=no
   NEON_EXTRAOBJS="$NEON_EXTRAOBJS ne_stubssl"
   ;;
esac
AC_SUBST(NEON_SUPPORTS_SSL)
])

dnl Check for Kerberos installation
AC_DEFUN([NEON_GSSAPI], [
AC_PATH_PROG([KRB5_CONFIG], krb5-config, none, $PATH:/usr/kerberos/bin)
if test "x$KRB5_CONFIG" != "xnone"; then
   ne_save_CPPFLAGS=$CPPFLAGS
   ne_save_LIBS=$NEON_LIBS
   NEON_LIBS="$NEON_LIBS `${KRB5_CONFIG} --libs gssapi`"
   CPPFLAGS="$CPPFLAGS `${KRB5_CONFIG} --cflags gssapi`"
   # MIT and Heimdal put gssapi.h in different places
   AC_CHECK_HEADERS(gssapi/gssapi.h gssapi.h, [
     NE_CHECK_FUNCS(gss_init_sec_context, [
      ne_save_CPPFLAGS=$CPPFLAGS
      ne_save_LIBS=$NEON_LIBS
      AC_MSG_NOTICE([GSSAPI authentication support enabled])
      AC_DEFINE(HAVE_GSSAPI, 1, [Define if GSSAPI support is enabled])
      AC_CHECK_HEADERS(gssapi/gssapi_generic.h)
      # MIT Kerberos lacks GSS_C_NT_HOSTBASED_SERVICE
      AC_CHECK_DECL([GSS_C_NT_HOSTBASED_SERVICE],,
        [AC_DEFINE([GSS_C_NT_HOSTBASED_SERVICE], gss_nt_service_name, 
          [Define if GSS_C_NT_HOSTBASED_SERVICE is not defined otherwise])],
        [#ifdef HAVE_GSSAPI_GSSAPI_H
#include <gssapi/gssapi.h>
#else
#include <gssapi.h>
#endif])])
     break
   ])
   CPPFLAGS=$ne_save_CPPFLAGS
   NEON_LIBS=$ne_save_LIBS
fi])

dnl Adds an --enable-warnings argument to configure to allow enabling
dnl compiler warnings
AC_DEFUN([NEON_WARNINGS],[

AC_REQUIRE([AC_PROG_CC]) dnl so that $GCC is set

AC_ARG_ENABLE(warnings,
AC_HELP_STRING(--enable-warnings, [enable compiler warnings]))

if test "$enable_warnings" = "yes"; then
   case $GCC:`uname` in
   yes:*)
      CFLAGS="$CFLAGS -Wall -ansi-pedantic -Wmissing-declarations -Winline -Wshadow -Wreturn-type -Wsign-compare -Wundef -Wpointer-arith -Wcast-align -Wbad-function-cast -Wimplicit-prototypes -Wformat-security"
      if test -z "$with_ssl" -o "$with_ssl" = "no"; then
	 # OpenSSL headers fail strict prototypes checks
	 CFLAGS="$CFLAGS -Wstrict-prototypes"
      fi
      ;;
   no:OSF1) CFLAGS="$CFLAGS -check -msg_disable returnchecks -msg_disable alignment -msg_disable overflow" ;;
   no:IRIX) CFLAGS="$CFLAGS -fullwarn" ;;
   no:UnixWare) CFLAGS="$CFLAGS -v" ;;
   *) AC_MSG_WARN([warning flags unknown for compiler on this platform]) ;;
   esac
fi
])

dnl Adds an --disable-debug argument to configure to allow disabling
dnl debugging messages.
dnl Usage:
dnl  NEON_WARNINGS([actions-if-debug-enabled], [actions-if-debug-disabled])
dnl
AC_DEFUN([NEON_DEBUG], [

AC_ARG_ENABLE(debug,
AC_HELP_STRING(--disable-debug,[disable runtime debugging messages]))

# default is to enable debugging
case $enable_debug in
no) AC_MSG_NOTICE([debugging is disabled])
$2 ;;
*) AC_MSG_NOTICE([debugging is enabled])
AC_DEFINE(NE_DEBUGGING, 1, [Define to enable debugging])
$1
;;
esac])

dnl Macro to optionally enable socks support
AC_DEFUN([NEON_SOCKS], [

AC_ARG_WITH([socks], AC_HELP_STRING([--with-socks],[use SOCKSv5 library]))

if test "$with_socks" = "yes"; then
  ne_save_LIBS=$LIBS

  AC_CHECK_HEADERS(socks.h,
    [AC_CHECK_LIB(socks5, connect,
      [AC_MSG_NOTICE([SOCKSv5 support enabled])],
      [AC_MSG_ERROR([could not find libsocks5 for SOCKS support])])],
    [AC_MSG_ERROR([could not find socks.h for SOCKS support])])

  CFLAGS="$CFLAGS -DNEON_SOCKS"
  NEON_LIBS="$NEON_LIBS -lsocks5"
  LIBS=$ne_save_LIBS

fi])

AC_DEFUN([NEON_WITH_LIBS], [
AC_ARG_WITH([libs],
[[  --with-libs=DIR[:DIR2...] look for support libraries in DIR/{bin,lib,include}]],
[case $with_libs in
yes|no) AC_MSG_ERROR([--with-libs must be passed a directory argument]) ;;
*) ne_save_IFS=$IFS; IFS=:
   for dir in $with_libs; do
     ne_add_CPPFLAGS="$ne_add_CPPFLAGS -I${dir}/include"
     ne_add_LDFLAGS="$ne_add_LDFLAGS -L${dir}/lib"
     ne_add_PATH="${ne_add_PATH}${dir}/bin:"
   done
   IFS=$ne_save_IFS
   CPPFLAGS="${ne_add_CPPFLAGS} $CPPFLAGS"
   LDFLAGS="${ne_add_LDFLAGS} $LDFLAGS"
   PATH=${ne_add_PATH}$PATH ;;
esac])])