[squid-users] squid-7.0.2 can't configure with LDAP-helpers

Andrey K ankor2023 at gmail.com
Tue Jul 15 09:41:56 UTC 2025 

Hello, Francesco,

The output of the command:
pkg-config --libs ldap
Package ldap was not found in the pkg-config search path.
Perhaps you should add the directory containing `ldap.pc'
to the PKG_CONFIG_PATH environment variable
Package 'ldap', required by 'virtual:world', not found

However, the libldap is installed in the system as a part of the openldap
package:
locate libldap
/usr/lib64/libldap-2.4.so.2
/usr/lib64/libldap-2.4.so.2.10.9
/usr/lib64/libldap.so
/usr/lib64/libldap_r-2.4.so.2
/usr/lib64/libldap_r-2.4.so.2.10.9
/usr/lib64/libldap_r.so

There is no ldap.pc file in the standard OEL openldap packages:
openldap-devel-2.4.46-18.el8.x86_64
openldap-2.4.46-18.el8.x86_64


Kind regards,
    Ankor



вт, 15 июл. 2025 г. в 10:42, Francesco Chemolli <gkinkie at gmail.com>:

> Hi Andrey,
>   looking at the code changes, the main reason I can see is that
> pkg-config needs to be present and working in order to Squid the
> libraries it needs.
> Could you try running
>
> pkg-config --libs ldap
>
> on your system?
>
> On Tue, Jul 15, 2025 at 7:13 AM Andrey K <ankor2023 at gmail.com> wrote:
> >
> > Hello, Francesco,
> >
> > I have also run a configure script with the same arguments on the Squid
> 6.13 sources.
> > It finished without errors.
> >
> > The link to the 6.13 logs:
> https://drive.google.com/file/d/16DY4uCM5cAbsNC8NcaoM8YB6GT8oUW3-/view?usp=sharing
> > The excerpt on the LDAP filter:
> >
> > grep -i ldap /tmp/configure.6.13.log
> > checking for LIBLDAP... no
> > checking for ldap_init in -lldap... yes
> > checking ldap.h usability... yes
> > checking ldap.h presence... yes
> > checking for ldap.h... yes
> > checking mozldap/ldap.h usability... no
> > checking mozldap/ldap.h presence... no
> > checking for mozldap/ldap.h... no
> > checking for LDAP... 1
> > checking for OpenLDAP... 1
> > checking for Sun LDAP SDK... 0
> > checking for Mozilla LDAP SDK... 0
> > checking for LDAP_OPT_DEBUG_LEVEL... 1
> > checking for LDAP_SCOPE_DEFAULT... 1
> > checking for LDAP_REBIND_PROC... 1
> > checking for LDAP_REBINDPROC_CALLBACK... 0
> > checking for LDAP_REBIND_FUNCTION... 0
> > checking for LDAP_URL_LUD_SCHEME... 0
> > checking for ldapssl_client_init in -lldap... no
> > checking for library containing ldap_url_desc2str... -lldap
> > checking for library containing ldap_url_parse... none required
> > checking for library containing ldap_start_tls_s... none required
> > configure: checking auth/basic helpers: LDAP SMB SMB_LM
> > checking for ldap.h... (cached) yes
> > checking winldap.h usability... no
> > checking winldap.h presence... no
> > checking for winldap.h... no
> > configure: auth/basic helpers to be built:  LDAP SMB SMB_LM
> > configure: checking auth/digest helpers: LDAP eDirectory file
> > checking for ldap.h... (cached) yes
> > checking for winldap.h... (cached) no
> > checking for ldap.h... (cached) yes
> > checking for winldap.h... (cached) no
> > configure: auth/digest helpers to be built:  LDAP eDirectory file
> > configure: checking acl/external helpers: kerberos_ldap_group
> wbinfo_group
> > configure: acl/external helpers to be built:  kerberos_ldap_group
> wbinfo_group
> > config.status: creating src/acl/external/kerberos_ldap_group/Makefile
> > config.status: creating src/acl/external/LDAP_group/Makefile
> > config.status: creating src/auth/basic/LDAP/Makefile
> > config.status: creating src/auth/digest/LDAP/Makefile
> > configure: running /bin/sh ./configure --disable-option-checking
> '--prefix=/usr/local/squid'  '--enable-auth-basic=LDAP,SMB,SMB_LM'
> '--enable-auth-negotiate=kerberos,wrapper' '--enable-auth-ntlm=SMB_LM'
> '--enable-external-acl-helpers=kerberos_ldap_group,wbinfo_group'
> --cache-file=/dev/null --srcdir=.
> >
> >
> > Kind regards,
> >      Ankor.
> >
> >
> >
> >
> >
> > вт, 15 июл. 2025 г. в 06:05, Andrey K <ankor2023 at gmail.com>:
> >>
> >> Hello, Francesco,
> >>
> >> Thank you for the help.
> >>
> >> Full logs of the configure command are available at the link:
> https://drive.google.com/file/d/1wxAmtK2PDTuS41vvM0kuAS-1TtlzZKFl/view?usp=sharing
> >>
> >> Here is a short excerpt on the LDAP filter:
> >> cat /tmp/configure.log | grep -i ldap
> >> checking for LIBLDAP... no
> >> checking for ldap.h... yes
> >> checking for mozldap/ldap.h... no
> >> checking for LDAP... 1
> >> checking for OpenLDAP... 1
> >> checking for Sun LDAP SDK... 0
> >> checking for Mozilla LDAP SDK... 0
> >> checking for LDAP_OPT_DEBUG_LEVEL... 1
> >> checking for LDAP_SCOPE_DEFAULT... 1
> >> checking for LDAP_REBIND_PROC... 1
> >> checking for LDAP_REBINDPROC_CALLBACK... 0
> >> checking for LDAP_REBIND_FUNCTION... 0
> >> checking for LDAP_URL_LUD_SCHEME... 0
> >> checking for ldapssl_client_init in -lldap... no
> >> checking for library containing ldap_url_desc2str... no
> >> checking for library containing ldap_url_parse... no
> >> checking for library containing ldap_start_tls_s... no
> >> configure: Library 'ldap' support: no (auto)
> >> configure: checking auth/basic helpers: LDAP SMB SMB_LM
> >> configure: error: required helper auth/basic/LDAP ... found but cannot
> be built
> >>
> >> Kind regards,
> >>       Ankor.
> >>
> >>
> >> пн, 14 июл. 2025 г. в 18:10, Francesco Chemolli <gkinkie at gmail.com>:
> >>>
> >>> Hi Ankor,
> >>>   it's really hard to help you with this little context. The main
> >>> reason why both these helpers may fail to build is because the LDAP
> >>> libraries were not found on the system. Would you mind running on your
> >>> system:
> >>>
> >>> $ ./configure --enable-auth-basic=LDAP,SMB,SMB_LM
> >>> --enable-auth-negotiate=kerberos,wrapper --enable-auth-ntlm=SMB_LM
> >>> --enable-external-acl-helpers=kerberos_ldap_group,wbinfo_group
> >>> >/tmp/configure.log 2>&1 && grep -i ldap /tmp/configure.log
> >>>
> >>> and sharing the output from that command?
> >>>
> >>> On Mon, Jul 14, 2025 at 10:38 AM Andrey K <ankor2023 at gmail.com> wrote:
> >>> >
> >>> > Hello,
> >>> >
> >>> > I tried to build squid-7.0.2, but ./configure failed if I use:
> >>> > --enable-auth-basic=LDAP,SMB,SMB_LM
> --enable-auth-negotiate=kerberos,wrapper --enable-auth-ntlm=SMB_LM
> --enable-external-acl-helpers=kerberos_ldap_group,wbinfo_group
> >>> >
> >>> > configure: Authentication support enabled: yes
> >>> > configure: checking auth/basic helpers: LDAP SMB SMB_LM
> >>> > configure: error: required helper auth/basic/LDAP ... found but
> cannot be built
> >>> >
> >>> > configure: checking acl/external helpers: kerberos_ldap_group
> wbinfo_group
> >>> > configure: error: required helper acl/external/kerberos_ldap_group
> ... found but cannot be built
> >>> >
> >>> > When I remove the LDAP and kerberos_ldap_group options,  ./configure
> passes smoothly.
> >>> >
> >>> > I did not observe a similar problem in the Squid-6.
> >>> >
> >>> > I am building Squid on an OEL-8 Linux with installed openldap-devel
> and openldap packages.
> >>> >
> >>> > Kind regards,
> >>> >      Ankor.
> >>> >
> >>> >
> >>> >
> >>> > _______________________________________________
> >>> > squid-users mailing list
> >>> > squid-users at lists.squid-cache.org
> >>> > https://lists.squid-cache.org/listinfo/squid-users
> >>>
> >>>
> >>>
> >>> --
> >>>     Francesco
>
>
>
> --
>     Francesco
>
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