How to configure LDAP

Herwin Weststrate herwin at
Tue Feb 17 12:49:25 CET 2015

You're probably missing the development headers for ldap. Easiest
solution: don't compile via configure, but build a debian package.
Install the packages 'build-essential' and 'devscripts', go to
/home/freeradius-server-2.2.6/ and run 'debuild -i -us -uc -b'. This
will error if you're missing the dev-packages, and show what packages
you're missing.

On 17-02-15 11:46, Sautron Nick wrote:
> Yes, i have a warning for the modules rlm_ldap
> root at test /home/freeradius-server-2.2.6/src/modules/rlm_ldap # ./configurechecking for gcc... gcc
> checking for C compiler default output file name... a.out
> checking whether the C compiler works... yes
> checking whether we are cross compiling... no
> checking for suffix of executables...
> checking for suffix of object files... o
> checking whether we are using the GNU C compiler... yes
> checking whether gcc accepts -g... yes
> checking for gcc option to accept ISO C89... none needed
> checking for pthread_create in -lpthread... yes
> checking for ldap_init in -lldap_r... no
> checking for ldap.h... no
> configure: WARNING: silently not building rlm_ldap.
> configure: WARNING: FAILURE: rlm_ldap requires:  libldap_r ldap.h.
> configure: creating ./config.status
> config.status: creating Makefile
> what to do in this case?
>      Le Mardi 17 février 2015 14h21, Stefan Paetow <Stefan.Paetow at> a écrit :
>  > Yes it is a debian 7.8, but I is not done the installation package but I have to install from source 
> Ok, then you had to compile it... During the './configure' step, you should check the warnings. It is possible that you didn't have any LDAP development libraries installed, which means that LDAP support was not built during the 'make' step.
> Stefan Paetow
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