Added keyserver directory from trunk

1 files changed, 97 insertions, 0 deletions

diff --git a/m4/ldap.m4 b/m4/ldap.m4
new file mode 100644
index 000000000..95249ac3e
--- /dev/null
+++ b/m4/ldap.m4
@@ -0,0 +1,97 @@
+dnl Check for LDAP
+dnl Copyright (C) 2005 Free Software Foundation, Inc.
+dnl
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License.  As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+dnl
+dnl Defines @GPGKEYS_LDAP@ to a executable name if a working ldap
+dnl setup is found, and sets @LDAPLIBS@ to the necessary libraries.
+
+AC_DEFUN([GNUPG_CHECK_LDAP],
+[
+# Try and link a LDAP test program to weed out unusable LDAP
+# libraries.  -lldap [-llber [-lresolv]] is for older OpenLDAPs.
+# OpenLDAP, circa 1999, was terrible with creating weird dependencies.
+# If all else fails, the user can play guess-the-dependency by using
+# something like ./configure LDAPLIBS="-Lfoo -lbar"
+
+AC_ARG_WITH(ldap,
+  AC_HELP_STRING([--with-ldap=DIR],[look for the LDAP library in DIR]),
+  [_ldap_with=$withval])
+
+if test x$_ldap_with != xno ; then
+
+  if test -d "$withval" ; then
+     LDAP_CPPFLAGS="-I$withval/include"
+     LDAP_LDFLAGS="-L$withval/lib"
+  fi
+
+  _ldap_save_cppflags=$CPPFLAGS
+  CPPFLAGS="${LDAP_CPPFLAGS} ${CPPFLAGS}"
+  _ldap_save_ldflags=$LDFLAGS
+  LDFLAGS="${LDAP_LDFLAGS} ${LDFLAGS}"
+
+  for MY_LDAPLIBS in ${LDAPLIBS+"$LDAPLIBS"} "-lldap" "-lldap -llber" "-lldap -llber -lresolv" "-lwldap32"; do
+    _ldap_save_libs=$LIBS
+    LIBS="$MY_LDAPLIBS $1 $LIBS"
+
+    AC_MSG_CHECKING([whether LDAP via \"$MY_LDAPLIBS\" is present and sane])
+    AC_TRY_LINK([
+#ifdef _WIN32
+#include <winsock2.h>
+#include <winldap.h>
+#else
+#include <ldap.h>
+#endif
+],[ldap_open("foobar",1234);],
+                [gnupg_cv_func_ldap_init=yes],[gnupg_cv_func_ldap_init=no])
+    AC_MSG_RESULT([$gnupg_cv_func_ldap_init])
+
+    if test $gnupg_cv_func_ldap_init = no; then
+      AC_MSG_CHECKING([whether I can make LDAP be sane with lber.h])
+      AC_TRY_LINK([#include <lber.h>
+#include <ldap.h>],[ldap_open("foobar",1234);],
+         [gnupg_cv_func_ldaplber_init=yes],[gnupg_cv_func_ldaplber_init=no])
+      AC_MSG_RESULT([$gnupg_cv_func_ldaplber_init])
+    fi
+
+    if test "$gnupg_cv_func_ldaplber_init" = yes ; then
+       AC_DEFINE(NEED_LBER_H,1,[Define if the LDAP library requires including lber.h before ldap.h])
+    fi
+
+    if test "$gnupg_cv_func_ldap_init" = yes || \
+        test "$gnupg_cv_func_ldaplber_init" = yes ; then
+       LDAPLIBS="$LDAP_LDFLAGS $MY_LDAPLIBS"
+       GPGKEYS_LDAP="gpgkeys_ldap$EXEEXT"
+
+       AC_CHECK_FUNCS(ldap_get_option ldap_set_option ldap_start_tls_s)
+
+       if test "$ac_cv_func_ldap_get_option" != yes ; then
+          AC_MSG_CHECKING([whether LDAP supports ld_errno])
+	  AC_TRY_LINK([#include <ldap.h>],[LDAP *ldap; ldap->ld_errno;],
+	     [gnupg_cv_func_ldap_ld_errno=yes],
+	     [gnupg_cv_func_ldap_ld_errno=no])
+          AC_MSG_RESULT([$gnupg_cv_func_ldap_ld_errno])
+
+	  if test "$gnupg_cv_func_ldap_ld_errno" = yes ; then
+	     AC_DEFINE(HAVE_LDAP_LD_ERRNO,1,[Define if the LDAP library supports ld_errno])
+          fi
+       fi
+    fi
+
+    LIBS=$_ldap_save_libs
+
+    if test "$GPGKEYS_LDAP" != "" ; then break; fi
+  done
+
+  AC_SUBST(GPGKEYS_LDAP)
+  AC_SUBST(LDAPLIBS)
+  AC_SUBST(LDAP_CPPFLAGS)
+
+  CPPFLAGS=$_ldap_save_cppflags
+  LDFLAGS=$_ldap_save_ldflags
+fi
+])dnl