diff --git a/bindings/php5/Makefile.am b/bindings/php5/Makefile.am
index a1ee2209..e39ea4ae 100644
--- a/bindings/php5/Makefile.am
+++ b/bindings/php5/Makefile.am
@@ -17,7 +17,7 @@ php_configdir=@PHP5_CONFIG_DIR@
 php_config_DATA = lasso.ini
 
 lasso_la_CFLAGS = -fno-strict-aliasing $(LASSO_CORE_CFLAGS) -I$(top_srcdir) -I$(top_builddir) $(PHP5_INCLUDES) $(AM_CFLAGS)
-lasso_la_CFLAGS += -Wno-unused-parameter
+lasso_la_CFLAGS += -Wno-unused-parameter -Wno-sign-compare # problem in zend.h
 lasso_la_LDFLAGS = -export-dynamic -prefer-pic -module -avoid-version
 lasso_la_LIBADD = $(top_builddir)/lasso/liblasso.la $(LASSO_LIBS) $(PHP5_LDFLAGS)
 nodist_lasso_la_SOURCES = _lasso.c
diff --git a/lasso/saml-2.0/logout.c b/lasso/saml-2.0/logout.c
index b613aaa7..facd7620 100644
--- a/lasso/saml-2.0/logout.c
+++ b/lasso/saml-2.0/logout.c
@@ -374,7 +374,7 @@ lasso_saml20_logout_process_response_msg(LassoLogout *logout, const char *respon
 
 	/* only if asked we report, otherwise we do not care */
 	if (profile->signature_status && lasso_profile_get_signature_verify_hint(profile) ==
-			LASSO_PROFILE_SIGNATURE_HINT_FORCE)
+			(LassoProfileSignatureVerifyHint)LASSO_PROFILE_SIGNATURE_HINT_FORCE)
 	{
 		goto_cleanup_with_rc(profile->signature_status);
 	}