nginx-0.3.55-RELEASE import

    *) Feature: the "stub" parameter in the "include" SSI command.

    *) Feature: the "block" SSI command.

    *) Feature: the unicode2nginx script was added to contrib.

    *) Bugfix: if a "root" was specified by variable only, then the root
       was relative to a server prefix.

    *) Bugfix: if the request contained "//" or "/./" and escaped symbols
       after them, then the proxied request was sent unescaped.

    *) Bugfix: the $r->headers_in("Cookie") of the ngx_http_perl_module now
       returns all "Cookie" header lines.

    *) Bugfix: a segmentation fault occurred if
       "client_body_in_file_only on" was used and nginx switched to a next
       upstream.

    *) Bugfix: on some condition while reconfiguration character codes
       inside the "charset_map" may be treated invalid; the bug had
       appeared in 0.3.50.
diff --git a/auto/make b/auto/make
index 4a2cd0c..f79c3b0 100644
--- a/auto/make
+++ b/auto/make
@@ -175,8 +175,10 @@
     | sed -e "s/  *\([^ ][^ ]*\)/$ngx_long_regex_cont\1/g" \
           -e "s/\//$ngx_regex_dirsep/g"`
 
-ngx_libs=${CORE_LIBS:+`echo $NGX_LD_OPT $CORE_LIBS \
-    | sed -e "s/\//$ngx_regex_dirsep/g" -e "s/^/$ngx_long_regex_cont/"`}
+if test -n "$NGX_LD_OPT$CORE_LIBS"; then
+    ngx_libs=`echo $NGX_LD_OPT $CORE_LIBS \
+        | sed -e "s/\//$ngx_regex_dirsep/g" -e "s/^/$ngx_long_regex_cont/"`
+fi
 
 ngx_link=${CORE_LINK:+`echo $CORE_LINK \
     | sed -e "s/\//$ngx_regex_dirsep/g" -e "s/^/$ngx_long_regex_cont/"`}