add cmake SOCKD support provided by vszakats

docs/INSTALL-CMAKE.md

@@ -463,6 +463,7 @@ Details via CMake
 - `CADDY`:                                  Default: `caddy`
 - `HTTPD_NGHTTPX`:                          Default: `nghttpx`
 - `HTTPD`:                                  Default: `apache2`
+- `SOCKD`:                                  Default: `sockd`
 - `TEST_NGHTTPX`:                           Default: `nghttpx`
 - `VSFTPD`:                                 Default: `vsftps`
 

tests/http/CMakeLists.txt

@@ -52,5 +52,11 @@ if(NOT HTTPD_NGHTTPX)
 endif()
 mark_as_advanced(HTTPD_NGHTTPX)
 
-# Consumed variables: APXS, CADDY, HTTPD, HTTPD_NGHTTPX, VSFTPD
+find_program(SOCKD "sockd")
+if(NOT SOCKD)
+  set(SOCKD "")
+endif()
+mark_as_advanced(SOCKD)
+
+# Consumed variables: APXS, CADDY, HTTPD, HTTPD_NGHTTPX, SOCKD, VSFTPD
 configure_file("config.ini.in" "${CMAKE_CURRENT_BINARY_DIR}/config.ini" @ONLY)