From ea9ad64664c66526e816721514a741cc986934d8 Mon Sep 17 00:00:00 2001
From: Alexey Rybalchenko <alexryba@gmail.com>
Date: Fri, 27 Sep 2019 15:45:54 +0200
Subject: [PATCH] CMake: Support multiple values for REQUIRES in
 fairmq_build_option

---
 cmake/FairMQLib.cmake | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/cmake/FairMQLib.cmake b/cmake/FairMQLib.cmake
index ca3cab0b..08314cc0 100644
--- a/cmake/FairMQLib.cmake
+++ b/cmake/FairMQLib.cmake
@@ -499,7 +499,7 @@ function(build_bundled package bundle)
 endfunction()
 
 macro(fairmq_build_option option description)
-  cmake_parse_arguments(ARGS "" "DEFAULT;REQUIRES" "" ${ARGN})
+  cmake_parse_arguments(ARGS "" "DEFAULT" "REQUIRES" ${ARGN})
 
   if(ARGS_DEFAULT)
     set(__default__ ON)
@@ -510,13 +510,15 @@ macro(fairmq_build_option option description)
   if(ARGS_REQUIRES)
     include(CMakeDependentOption)
     set(__requires__ ${ARGS_REQUIRES})
-    string(REGEX REPLACE " +" ";" __requires_condition__ "${__requires__}")
-    if(${__requires_condition__})
-    else()
-      if(${option})
-        message(WARNING "Cannot enable build option ${option}, depending options are not set: ${__requires_condition__}.")
+    foreach(d ${__requires__})
+      string(REGEX REPLACE " +" ";" __requires_condition__ "${d}")
+      if(${__requires_condition__})
+      else()
+        if(${option})
+          message(WARNING "Cannot enable build option ${option}, depending option is not set: ${__requires_condition__}")
+        endif()
       endif()
-    endif()
+    endforeach()
   else()
     set(__requires__)
   endif()