Hi,

I am learning how to install, configure and use openldap. During installing of openldap with back-perl I get the following error:

cd back-perl; make -w install
make[3]: Entering directory `/root/openldap-2.4.8/servers/slapd/back-perl'
/bin/sh ../../..//libtool --tag=disable-static --mode=compile cc -g -O2 -I../../../include        -I../../../include -I.. -I./..     -DSLAPD_IMPORT -c init.c
 cc -g -O2 -I../../../include -I../../../include -I.. -I./.. -DSLAPD_IMPORT -c init.c  -fPIC -DPIC -o .libs/init.o
In file included from init.c:18:
perl_back.h:21:20: error: EXTERN.h: No such file or directory
perl_back.h:22:18: error: perl.h: No such file or directory
In file included from init.c:18:
perl_back.h:62: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
perl_back.h:67: error: expected specifier-qualifier-list before 'SV'
init.c:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
init.c:24: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
init.c: In function 'perl_back_initialize':
init.c:72: error: 'perl_interpreter' undeclared (first use in this function)
init.c:72: error: (Each undeclared identifier is reported only once
init.c:72: error: for each function it appears in.)
init.c: In function 'perl_back_db_init':
init.c:96: error: 'PerlBackend' has no member named 'pb_filter_search_results'
init.c: In function 'perl_back_db_open':
init.c:117: error: 'dSP' undeclared (first use in this function)
init.c:117: error: 'ENTER' undeclared (first use in this function)
init.c:117: error: 'SAVETMPS' undeclared (first use in this function)
init.c:119: error: 'sp' undeclared (first use in this function)
init.c:120: error: 'PerlBackend' has no member named 'pb_obj_ref'
init.c:122: error: 'PUTBACK' undeclared (first use in this function)
init.c:127: error: 'G_SCALAR' undeclared (first use in this function)
init.c:130: error: 'SPAGAIN' undeclared (first use in this function)
init.c:136: error: 'POPi' undeclared (first use in this function)
init.c:138: error: 'FREETMPS' undeclared (first use in this function)
init.c:138: error: 'LEAVE' undeclared (first use in this function)
init.c: In function 'perl_back_xs_init':
init.c:151: error: 'dXSUB_SYS' undeclared (first use in this function)
init.c:152: error: 'boot_DynaLoader' undeclared (first use in this function)
make[3]: *** [init.lo] Error 1
make[3]: Leaving directory `/root/openldap-2.4.8/servers/slapd/back-perl'
make[2]: *** [install-slapd] Error 1
make[2]: Leaving directory `/root/openldap-2.4.8/servers/slapd'
make[1]: *** [install-common] Error 1
make[1]: Leaving directory `/root/openldap-2.4.8/servers'
make: *** [install-common] Error 1

Am I missing a requirement? Perl and perl-devel are installed.
Can anybody help me to solve this issue?

TIA,
Arjan.