dont return a system path if cmake's 'WITH_INSTALL_PORTABLE' is enabled. this way portable builds wont find scripts in /usr/share.

CMakeLists.txt

@@ -111,11 +111,7 @@ endif()
 
 # 3D format support
 # disable opencollada on non-apple unix because opencollada has no package for debian
-if(UNIX AND NOT APPLE)
 option(WITH_OPENCOLLADA		"Enable OpenCollada Support (http://www.opencollada.org)"	OFF)
-else()
-	option(WITH_OPENCOLLADA		"Enable OpenCollada Support (http://www.opencollada.org)"	OFF)
-endif()
 
 # Sound output
 option(WITH_SDL           "Enable SDL for sound and joystick support" ON)

intern/ghost/CMakeLists.txt

@@ -137,7 +137,9 @@ elseif(UNIX)
 		intern/GHOST_WindowX11.h
 	)
 
+	if(NOT WITH_INSTALL_PORTABLE)
 		add_definitions(-DPREFIX="${CMAKE_INSTALL_PREFIX}")
+	endif()
 
 	if(X11_XF86keysym_INCLUDE_PATH)
 		add_definitions(-DWITH_XF86KEYSYM)

intern/ghost/intern/GHOST_SystemPathsX11.cpp

@@ -43,11 +43,6 @@
 #include <stdio.h> // for fprintf only
 #include <cstdlib> // for exit
 
-#ifndef PREFIX
-#  define PREFIX "/usr/local"
-#endif
-
-
 using namespace std;
 
 GHOST_SystemPathsX11::GHOST_SystemPathsX11()
@@ -60,7 +55,12 @@ GHOST_SystemPathsX11::~GHOST_SystemPathsX11()
 
 const GHOST_TUns8* GHOST_SystemPathsX11::getSystemDir() const
 {
+	/* no prefix assumes a portable build which only uses bundled scripts */
+#ifdef PREFIX
 	return (GHOST_TUns8*) PREFIX "/share";
+#else
+	return NULL;
+#endif
 }
 
 const GHOST_TUns8* GHOST_SystemPathsX11::getUserDir() const

intern/ghost/intern/GHOST_SystemX11.cpp

@@ -76,10 +76,6 @@
 #include <stdio.h> // for fprintf only
 #include <cstdlib> // for exit
 
-#ifndef PREFIX
-#error "PREFIX not defined"
-#endif
-
 typedef struct NDOFPlatformInfo {
 	Display *display;
 	Window window;

intern/ghost/intern/GHOST_WindowX11.cpp

@@ -455,6 +455,7 @@ GHOST_WindowX11(
 	XFlush(m_display);
 }
 
+#ifdef WITH_X11_XINPUT
 /* 
 	Dummy function to get around IO Handler exiting if device invalid
 	Basically it will not crash blender now if you have a X device that 
@@ -495,7 +496,6 @@ static bool match_token(const char *haystack, const char *needle)
 	return FALSE;
 }
 
-#ifdef WITH_X11_XINPUT
 
 /*	Determining if an X device is a Tablet style device is an imperfect science.
 **  We rely on common conventions around device names as well as the type reported