Index: servers/slapd/back-perl/init.c
===================================================================
--- servers/slapd/back-perl/init.c.orig
+++ servers/slapd/back-perl/init.c
@@ -35,7 +35,9 @@ perl_back_initialize(
 	BackendInfo	*bi
 )
 {
-	bi->bi_open = perl_back_open;
+	char *embedding[] = { "", "-e", "0" };
+
+	bi->bi_open = NULL;
 	bi->bi_config = 0;
 	bi->bi_close = perl_back_close;
 	bi->bi_destroy = 0;
@@ -63,16 +65,7 @@ perl_back_initialize(
 	bi->bi_connection_init = 0;
 	bi->bi_connection_destroy = 0;
 
-	return 0;
-}
-		
-int
-perl_back_open(
-	BackendInfo	*bi
-)
-{
-	char *embedding[] = { "", "-e", "0" };
-
+	/* injecting code from perl_back_open, because using fonction reference  (bi->bi_open) is not functional */
 	Debug( LDAP_DEBUG_TRACE, "perl backend open\n", 0, 0, 0 );
 
 	if( PERL_INTERPRETER != NULL ) {
Index: servers/slapd/back-perl/proto-perl.h
===================================================================
--- servers/slapd/back-perl/proto-perl.h.orig
+++ servers/slapd/back-perl/proto-perl.h
@@ -22,7 +22,6 @@ LDAP_BEGIN_DECL
 
 extern BI_init		perl_back_initialize;
 
-extern BI_open		perl_back_open;
 extern BI_close		perl_back_close;
 
 extern BI_db_init	perl_back_db_init;
Index: servers/slapd/back-perl/bind.c
===================================================================
--- servers/slapd/back-perl/bind.c.orig
+++ servers/slapd/back-perl/bind.c
@@ -32,7 +32,7 @@ perl_back_bind(
 
 	PerlBackend *perl_back = (PerlBackend *) op->o_bd->be_private;
 
-#ifdef HAVE_WIN32_ASPERL
+#if defined(HAVE_WIN32_ASPERL) || defined(USE_ITHREADS)
 	PERL_SET_CONTEXT( PERL_INTERPRETER );
 #endif
 
Index: servers/slapd/back-perl/add.c
===================================================================
--- servers/slapd/back-perl/add.c.orig
+++ servers/slapd/back-perl/add.c
@@ -26,6 +26,10 @@ perl_back_add(
 	int len;
 	int count;
 
+#if defined(HAVE_WIN32_ASPERL) || defined(USE_ITHREADS)
+	PERL_SET_CONTEXT( PERL_INTERPRETER );
+#endif
+
 	ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );
 	ldap_pvt_thread_mutex_lock( &entry2str_mutex );
 
Index: servers/slapd/back-perl/compare.c
===================================================================
--- servers/slapd/back-perl/compare.c.orig
+++ servers/slapd/back-perl/compare.c
@@ -41,6 +41,10 @@ perl_back_compare(
 		op->orc_ava->aa_desc->ad_cname.bv_val ), "=" ),
 		op->orc_ava->aa_value.bv_val );
 
+#if defined(HAVE_WIN32_ASPERL) || defined(USE_ITHREADS)
+	PERL_SET_CONTEXT( PERL_INTERPRETER );
+#endif
+
 	ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );	
 
 	{
Index: servers/slapd/back-perl/delete.c
===================================================================
--- servers/slapd/back-perl/delete.c.orig
+++ servers/slapd/back-perl/delete.c
@@ -25,6 +25,10 @@ perl_back_delete(
 	PerlBackend *perl_back = (PerlBackend *) op->o_bd->be_private;
 	int count;
 
+#if defined(HAVE_WIN32_ASPERL) || defined(USE_ITHREADS)
+	PERL_SET_CONTEXT( PERL_INTERPRETER );
+#endif
+
 	ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );	
 
 	{
Index: servers/slapd/back-perl/modify.c
===================================================================
--- servers/slapd/back-perl/modify.c.orig
+++ servers/slapd/back-perl/modify.c
@@ -27,7 +27,9 @@ perl_back_modify(
 	int count;
 	int i;
 
-
+#if defined(HAVE_WIN32_ASPERL) || defined(USE_ITHREADS)
+	PERL_SET_CONTEXT( PERL_INTERPRETER );
+#endif
 	ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );	
 
 	{
Index: servers/slapd/back-perl/modrdn.c
===================================================================
--- servers/slapd/back-perl/modrdn.c.orig
+++ servers/slapd/back-perl/modrdn.c
@@ -25,6 +25,9 @@ perl_back_modrdn(
 	PerlBackend *perl_back = (PerlBackend *) op->o_bd->be_private;
 	int count;
 
+#if defined(HAVE_WIN32_ASPERL) || defined(USE_ITHREADS)
+	PERL_SET_CONTEXT( PERL_INTERPRETER );
+#endif
 	ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );	
 
 	{
Index: servers/slapd/back-perl/search.c
===================================================================
--- servers/slapd/back-perl/search.c.orig
+++ servers/slapd/back-perl/search.c
@@ -34,6 +34,9 @@ perl_back_search(
 	char *buf;
 	int i;
 
+#if defined(HAVE_WIN32_ASPERL) || defined(USE_ITHREADS)
+	PERL_SET_CONTEXT( PERL_INTERPRETER );
+#endif
 	ldap_pvt_thread_mutex_lock( &perl_interpreter_mutex );	
 
 	{