diff options
Diffstat (limited to 'm4/ldap.m4')
| -rw-r--r-- | m4/ldap.m4 | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/m4/ldap.m4 b/m4/ldap.m4 new file mode 100644 index 0000000..954f88a --- /dev/null +++ b/m4/ldap.m4 @@ -0,0 +1,101 @@ +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" +gnupg_have_ldap=no +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 $MY_LDAPLIBS" + GPGKEYS_LDAP="gpg2keys_ldap$EXEEXT" + gnupg_have_ldap=yes + + AC_CHECK_FUNCS(ldap_get_option ldap_set_option) + # The extra test for ldap_start_tls_sA is for W32 because + # that is the actual function in the library. + AC_CHECK_FUNCS(ldap_start_tls_s ldap_start_tls_sA) + + 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 |