Third try to fix issues with graphics on mac

.travis.yml

@@ -50,8 +50,6 @@ matrix:
           - libxml++2.6-dev
           - perl
           - python
-          - readline	# added to fit Icarus installation requirement
-          - termcap		# added to fit Icarus installation requirement
           - texinfo
           - time
           - valgrind

CMakeLists.txt

@@ -22,11 +22,7 @@ project("OPENFPGA" C CXX)
 
 # Options
 # Option to enable/disable graphic in compilation
-if (APPLE)
-option(ENABLE_VPR_GRAPHICS "Disables VPR graphics" OFF)
-else ()
 option(ENABLE_VPR_GRAPHICS "Enables VPR graphics" ON)
-endif ()
 
 # Version number
 set(OPENFPGA_VERSION_MAJOR 1)
@@ -129,6 +125,7 @@ enable_testing()
 # 
 # Sub-projects
 #
+#add_subdirectory(iverilog)
 add_subdirectory(yosys)
 add_subdirectory(abc)
 add_subdirectory(ace2)

vpr7_x2p/vpr/CMakeLists.txt

@@ -12,7 +12,9 @@ endif()
 project("vpr7_x2p" C CXX)
 
 # idenify if we need graphics
-if (ENABLE_VPR_GRAPHICS)
+if (APPLE) 
+  set(ENABLE_VPR_GRAPHICS false)
+elseif (ENABLE_VPR_GRAPHICS)
   # check for dependencies
   message(STATUS "VPR graphics is turned on, searching for dependencies")
   find_package(X11 COMPONENTS X11 Xft)