[evolution] Bug 773659 - Don't set CFLAGS returned by pkg-config as CMAKE_REQUIRED_FLAGS

[Milan Crha <mcrha src gnome org>]

commit 37eac9c3d3c90bc80973dcaf307688edf7266654
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Mon Oct 31 15:58:11 2016 +0100

    Bug 773659 - Don't set CFLAGS returned by pkg-config as CMAKE_REQUIRED_FLAGS

 CMakeLists.txt |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b455465..64bfbd9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -535,7 +535,7 @@ set(HAVE_LIBNOTIFY ${LIBNOTIFY_FOUND})
 # libical tweaks
 # ******************************
 
-set(CMAKE_REQUIRED_FLAGS ${EVOLUTION_DATA_SERVER_CFLAGS})
+set(CMAKE_REQUIRED_DEFINITIONS ${EVOLUTION_DATA_SERVER_CFLAGS_OTHER})
 set(CMAKE_REQUIRED_INCLUDES ${EVOLUTION_DATA_SERVER_INCLUDE_DIRS})
 set(CMAKE_REQUIRED_LIBRARIES ${EVOLUTION_DATA_SERVER_LDFLAGS})
 
@@ -551,7 +551,7 @@ CHECK_C_SOURCE_COMPILES("#include <libical/ical.h>
                                return 0;
                        }" HAVE_ICALTZUTIL_SET_EXACT_VTIMEZONES_SUPPORT)
 
-unset(CMAKE_REQUIRED_FLAGS)
+unset(CMAKE_REQUIRED_DEFINITIONS)
 unset(CMAKE_REQUIRED_INCLUDES)
 unset(CMAKE_REQUIRED_LIBRARIES)