fix building --without-pcre

src/http/modules/ngx_http_referer_module.c

diff --git a/src/http/modules/ngx_http_referer_module.c b/src/http/modules/ngx_http_referer_module.c
index 15c9351..0582899 100644
--- a/src/http/modules/ngx_http_referer_module.c
+++ b/src/http/modules/ngx_http_referer_module.c
@@ -246,7 +246,9 @@
     if (conf->keys == NULL) {
         conf->hash = prev->hash;
 
+#if (NGX_PCRE)
         ngx_conf_merge_ptr_value(conf->regex, prev->regex, NULL);
+#endif
         ngx_conf_merge_value(conf->no_referer, prev->no_referer, 0);
         ngx_conf_merge_value(conf->blocked_referer, prev->blocked_referer, 0);
 
@@ -322,7 +324,9 @@
         conf->hash.wc_tail = (ngx_hash_wildcard_t *) hash.hash;
     }
 
+#if (NGX_PCRE)
     ngx_conf_merge_ptr_value(conf->regex, prev->regex, NULL);
+#endif
 
     if (conf->no_referer == NGX_CONF_UNSET) {
         conf->no_referer = 0;

src/http/ngx_http_core_module.c

diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index edfc3bb..13bb933 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -2670,8 +2670,10 @@
 #if (NGX_HTTP_GZIP)
     lcf->gzip_vary = NGX_CONF_UNSET;
     lcf->gzip_http_version = NGX_CONF_UNSET_UINT;
+#if (NGX_PCRE)
     lcf->gzip_disable = NGX_CONF_UNSET_PTR;
 #endif
+#endif
 
     return lcf;
 }
@@ -2891,7 +2893,9 @@
     ngx_conf_merge_bitmask_value(conf->gzip_proxied, prev->gzip_proxied,
                               (NGX_CONF_BITMASK_SET|NGX_HTTP_GZIP_PROXIED_OFF));
 
+#if (NGX_PCRE)
     ngx_conf_merge_ptr_value(conf->gzip_disable, prev->gzip_disable, NULL);
+#endif
 
 #endif