notes on use of curl

README.rst

@@ -110,9 +110,9 @@ be build.
 
 When building from the source repository:
 
-* libtool
-* autoconf 2.69 or later
-* automake
+* `libtool`
+* `autoconf` 2.69 or later
+* `automake`
 
 For all builds:
 
@@ -120,9 +120,9 @@ For all builds:
   versions and clang should work
 
 * A working build environment with all standard headers and tools
-  (e.g. make)
+  (e.g. `make`)
 
-* perl
+* `perl`
 
 * The following perl modules:
 
@@ -132,9 +132,13 @@ For all builds:
 
   * `MIME::Base64`
 
+To download the dcs DB (through the `DCS_ACCOUNT` parameter to `configure`)
+
+* `curl`
+
 To build the documentation
 
-* rst2man
+* `rst2man`
 
 To build the varnish module (VMOD)
 
@@ -438,6 +442,14 @@ not link dynamically to `libdcs.so`. This is done for two reasons:
    from one DCS database is used with `libvmod_dcs.so` generated from
    another
 
+cURL
+----
+
+`curl` uses environment variables like `http_proxy`. If they do not pass through
+the Makefiles (as with some versions of `make`),
+`curl` can be configured using `~/.curlrc`.
+
+
 ACKNOWLEDGEMENTS
 ================